The FEMA P-58 Seismic Methodology is a performance-based approach for evaluating how buildings will fare during earthquakes.

It was developed by the Applied Technology Council (ATC) as part of the ATC-58 project series for the Federal Emergency Management Agency (FEMA).

Unlike traditional code, which has a strong focus on minimum life-safety, the FEMA P-58 provides a complete risk assessment of a building’s likely earthquake damage and its consequences. 

For example, instead of “ensuring the building won’t collapse”, it outlines estimates of how much damage could occur, how long repairs might take, what it might cost, and how much downtime would be needed, etc.

How Performance-based Seismic Design Works

Performance-based seismic design (PBSD) shifts the focus from meeting minimum building code safety standards to meeting owner-defined seismic goals.

Simply, building codes aim to prevent building collapse in a “design level” earthquake. However, they don’t guarantee that the building will be usable or economical to repair afterwards. PBSD, though, does.

At the beginning of a PBSD, the owners and stakeholders set clear performance targets. This could include maximum allowable downtime, repair costs, etc. For example, a hospital may require full functionality instantly after a moderate quake.

By using tools like the FEMA P-58, professionals can model and compare design options early in the process. This then allows them to develop a seismic design plan that meets the goals of the owners or stakeholders to meet their post-seismic goals.

When to Use FEMA P-58

Not every project requires a full FEMA P-58 analysis. After all, it requires additional effort and design. However, it is always recommended, and even insights from such methodology are valuable.

High-Value or Critical Facilities

This could include anything such as residential homes, hospitals, emergency operation centers, data centers, telecommunication hubs, major manufacturing plants, or power utilities. Pretty much, any building that must function or be inhabited after an earthquake.

These facilities, if they encounter downtime, could be life-threatening. That’s why such facilities should have a FEMA P-58 seismic plan instead of an “ordinary” code-compliant seismic design plan.

Protecting What is Inside the Building

Some projects are less about protecting the building itself and more about what is inside.

If you and your family sleep at home at least 8 hours every night, then there is at least a 33% chance you and/ or your family will be home during the next major seismic event. Your family and loved ones deserve the very best when it comes to seismic protection, and the minimum required work is not designed to protect your home or family from extensive damage.

For general buildings besides your home, these could be anything from museums to archives, high-tech laboratories, art galleries, data storage centers, and so forth.

In these cases, whether the building survives or not isn’t the key issue. The goal is to protect the goods inside. Therefore, a FEMA P-58 plan will look into the probability of things like sprinkler leaks, ceiling collapse, etc., to protect them.

Projects in High Seismic Risk Zones

If a structure is located in an area with a high likelihood of seismic activity, like California’s San Andreas and Hayward fault regions, the Pacific Northwest, etc., a PBSD could help reduce the deadliness of the “big one”.

For example, the “big one” in the San Francisco Bay Area could be a magnitude of 7.5. However, codes only ensure that most properties, such as residential, can handle minor quakes. Therefore, major earthquakes still pose a serious threat with standard seismic codes.

Real Estate Transactions & Investments

FEMA P-58 isn’t just for design. It can also be used as a powerful due diligence and risk assessment tool when buying, leasing, or financing a building.

By getting a professional to review the current real estate plans, you’ll be able to determine how earthquake-ready the property is. This can then sway your decision on whether or not to make the purchase.

Construction Retrofits

When retrofitting existing buildings that are known to be vulnerable, a FEMA P-58 can guide a targeted retrofit strategy to achieve certain performance metrics. This ensures that your retrofit upgrades protect your property in a way suited to your goals.

The Process of FEMA P-58

If you decide to use FEMA P-58 on a project, the process looks a little like the following:

1. Define Performance Goals: Establish clear, quantitative resilience objectives early in the project. Identify acceptable limits for downtime, repair costs, and safety risks.
2. Assemble a Qualified Design Team: Engage experienced professionals who are familiar with FEMA P-58/PBSD. This may include architects, MEP engineers, seismic risk consultants, contractors, and cost estimators.
3. Conduct Preliminary Performance Assessment: Use the conceptual design phase to run early FEMA P-58 analyses. Test multiple structural systems and identify risky elements or design.
4. Refine Design and Align with Goals: Move into a detailed design with more precise FEMA P-58 assessments. Use an iterative analysis-feedback-design cycle until all the performance indicators meet targets.
5. Final Verification and Implementation: Perform final FEMA P-58 analysis to prove design meets performance goals. Document all expected losses, downtime, and causality risk for personal or stakeholder review.

Benefits of FEMA P-58

Using the FEMA P-58 methodology (and PBSD in general) can provide multiple benefits for building owners, occupants, and even the broader community.

Here are some major advantages:

Saving Lives, Reduced Downtime, and Business Disruption

The biggest benefit of getting a FEMA P-58 seismic design is to save lives. When retrofitting your home, the goal is to protect everyone inside and prevent as much damage as possible.

For a non-residential structure, it is about protecting the staff and clients inside, plus the ability to remain functional or recover quicker.

Traditional code-designed buildings, in some circumstances, can be closed or non-inhabitable for months (maybe even years) for repair after a big quake.

With a P-58-optimized building, however, you can specially develop a building design where the building doesn’t need repairing after a certain magnitude of quake.

This is vital for not only your home, but also for community buildings, like hospitals and grocery stores. If such buildings need extensive repairs after a large quake, it could be life-threatening to many in the area.

Not only this, but it could be financially threatening if your home becomes inhabitable or your business need to close down due to repairs for a while. This may even put you into bankruptcy.

Financial Risk Control

Using a FEMA P-58 also means fewer financial surprises when we experience an earthquake. The reason for this is that you likely know the outcome (in regards to dollars) based on the analysis provided.

For example, with a standard seismic-code property, you won’t know how much damage you might encounter. With a FEMA P-58 design, though, you’ll have realistic values on how much it may cost you if your building needed to be repaired due to a quake.

From a risk management perspective, the P-58 enables what people like to call a risk-based design. While developing the design, you set an acceptable risk (in terms of dollars) and create it in such a way.

Let’s say you don’t want the repairs of your building to exceed 10% of its value after a magnitude of 5 or more. In that case, in the previous design and development steps, the building would have been designed to meet these goals.

Enhanced Property Value and Marketability

Alongside the above, buildings designed for high seismic performance can demand a high market price (especially in high seismic zones).

For instance, in regions like California, some buyers and tenants are looking for buildings with higher seismic ratings. This is because some regions in California have high seismic risk.

If you can show that your building has, for instance, a USRC Platinum rating or has been performance-designed to minimal damage, it’s a strong selling point.

In fact, FEMA has even mentioned that better building earthquake resilience does increase the value of the property.

Community and Environmental Resilience

Beyond the individual building and owner, there are broader societal benefits to designing with FEMA P-58.

Simply, a community with more earthquake-resilient buildings will recover faster after a disaster. They can support the entire community.

A FEMA P-58 designed building will likely need less extensive repairs, demolition, etc. Therefore, services can be spread elsewhere and to those who are more in need.

Conclusion

Overall, FEMA P-58 enables homeowners, building owners, designers, and investors to move beyond the one-size-fits-all seismic design approach.

By quantifying earthquake risks in terms of dollars, downtime, and casualties it brings clarity to the seismic performance of your property.

If you’d like a FEMA P-58 seismic design today, contact our professionals at Avant Garde.

We’ll be more than happy to listen to your seismic goals, develop a plan, and, most importantly, execute on it.

This is only going to get worse as well. Sea levels are rising and scientists have even predicted a “wetter future” for residence in the area. 

For homeowners, property developers, or investors, this means that proper drainage and basement waterproofing are essential. It’ll guarantee your foundation remains structurally sound, helping you combat seismic and other weather-related risks in the Bay Area. 

Common Drainage Issues in the Bay Area 

Despite the beauty of the Bay Area, it presents some unique issues regarding drainage. These include: 

Heavy Storm Runoff 

The Bay Area is prone to powerful rainstorms, particularly during winter atmospheric river events. 

When this happens, rainwater rushes off roofs, driveways, sidewalks, and other hard surfaces faster than the ground can absorb. 

Improper drainage, whether it’s poorly designed or damaged, can cause severe flooding in yards, basements, and crawl spaces. 

Poor Grading and Drainage 

Many older properties in the Bay Area also have insufficient slope to carry water away from the house. 

Sometimes, ground slopes towards a property, from a driveway, patio, garden bed, etc., causing pools of water to appear alongside your house. Add broken or clogged gutters or downspouts to the mix, and this problem is even worse. 

If this happens, water could flood into your home. It can also deteriorate the foundation if it settles into the ground over a period of time. 

Clay Soils & High Water Table 

Much of the Bay Area is built on clay-heavy soil, which, unfortunately, doesn’t drain well. 

After a heavy downpour, these soils become saturated and hold water close to the surface. Sometimes, this results in the groundwater table rising as high as the basement floor. However, even a few inches of underground water can cause problematic basement flooding. 

Alongside this, for coastal neighborhoods, sea levels are rising. This is causing groundwater to rise toward the foundations, making them more prone to flooding, and can cause cracking, efflorescence, delamination, spalling, etc.

Perched Groundwater and Hillside Homes

If you own a property in a hilly area, layers of water can get trapped above denser clay layers underground. 

This is referred to as “perched water”. When this happens, it tends to seep downhill toward homes near or built on a slope. If this occurs, you can experience constant moisture or seepage through your training walls or basement unless you have proper drainage. 

Our Drainage & Waterproofing Services 

At Avant-Garde, we’re an all-in-one contractor, offering a range of services to help improve property drainage and waterproofing. 

Drainage Designs 

Every single property in the Bay Area is unique. That’s why we offer complete custom drainage design. This is tailored to your specific lot’s slope, soil type, and structural layout.

While developing this design, we consider both surface solutions and the landscape of your property, for example, grading, gutters, downspouts, and catch basins. We also ensure your property is following the proper California Residential Codes for drainage. 

By offering such a service, it ensures our customers get a proper drainage solution for their property. 

French Drain Installation 

French drains are a superb way of managing groundwater while improving your property’s curb appeal and visual aesthetics. 

We install such systems by digging a trench, lining it with filtration fabric, placing waterproof membrane against the foundation, then installing gravel and perforated pipes that redirect water away from your property. 

These are ideal for a range of homes. Whether you’re experiencing basement seepage, high water tables, or lateral water pressure against retaining walls, these are the perfect solution. 

Sump Pump & Dry Wells 

A sump pump is an excellent solution if your basement sits below the local water table or has ongoing water intrusion. 

With these, we install a sump basin and fit it with a pump. The pump then ejects the captured water through pipes underground out to the street gutter.

For homes with low points away from the home, dry wells are superb. These are buried tanks in your yard that collect and slowly disperse the waters below-grade. Grading is important for this to work as it relies on gravity vs electricity and a pump.

Both services offer a similar solution. They take water from vulnerable areas and transport it somewhere safe, so it doesn’t damage your property. 

Basement Waterproofing 

By using exterior and interior waterproofing methods, our team can help protect your basement from water ingress. 

For exterior basement waterproofing, we excavate around the foundation of the property. Once completed, we apply waterproof membranes then French drains that block water at the source. 

On the other hand, waterproofing basement interiors involves applying penetrating, crystalline sealants. 

Both services are extremely important, especially for older Bay Area homes. They help keep your basement dry, mold-free, and usable. 

Basement Dig-Outs 

If you have a low-ceiling or damp basement, we can also perform complete dig-outs. This can convert it into a livable area and ensure your basement is built following the best waterproofing practices. 

During this process, we excavate downwards, install new concrete footings and walls, and fully waterproof the new basement level. This is the perfect solution for anyone looking to expand their property downwards instead of upwards. 

Why Drainage Design Should Be Customized 

No two Bay Area lots are alike. Some neighborhoods are built on sandy uplands with quick drainage, while others are in clay soil areas that retain water. Not only this, but a property on a steep hillside lot needs much different drainage than an urban flat lot. 

Because of this, your property needs a bespoke drainage design. This will ensure that no matter your soil type, current drainage setup, property grading, etc., you’ll have a sufficient system that can direct water away from your property. 

Risk of Delaying Waterproofing

If you have waterproofing issues, delaying action can lead to serious problems. For example: 

• Mold Growth and Poor Air Quality
• Structural Damage to Your Home
• Decreased Home Value and Increased Costs
• Health Risks from Mold and Humidity

The longer you wait, the worse the problem will become. That’s why you need to act today. The initial cost will far outweigh the future expenses. 

Why Choose Avant-Garde 

At Avant-Garde, we’re the go-to local Bay Area waterproofing contractor. We understand the region and bring decades of experience to every project. 

Bay Area Expertise 

We know the local soils, microclimates, and code requirements (like CBC Title 24) inside and out and back to front. Our team has handled drainage, waterproofing, and basement services in all major cities, from San Jose to Marin & beyond, ensuring our customers’ properties stay dry. 

Full-Service Integration 

Our comprehensive services are why our customers call us a ‘one-stop’ contractor for foundations and waterproofing. From the initial visit to the design and installation, we’ll handle every step of the project, from grading to permitting, pumps, structural work, and more. 

Clear Communication & Compliance 

Through every step of the project, our customers will be well-informed. We’ll use detailed assessments, itemized recommendations, and drawings so you fully understand the scope of work. Alongside this, we’ll strictly follow the California Building Code standards for dampproofing and drainage.

Local, Licensed Team 

The Avant-Garde team is as local as you. We live, work, and breathe the Bay Area. We are fully licensed, insured, and follow all laws— even those regarding taxes and employee classification (often ignored by “the other guys”). Therefore, you can trust our team to fulfill the work you require. 

Service Areas

We serve the entire San Francisco Bay Area for all our services. This includes drainage, waterproofing, basement, and various other services. 

Our team manages the following areas from our headquarters in San Leandro: 

• Alameda
• Contra Costa
• Marin
• Napa
• San Francisco
• San Mateo
• Santa Clara
• Solano
• Sonoma

As you can imagine, the distance from the HQ to the project will reflect on pricing. 

Contact Us Today 

Don’t wait until the next storm to flood your basement or the next foundation crack. Protect your home, property, and investment today with professional drainage and waterproofing. 

Contact our team at Avant-Grade for a professional consultation and let us evaluate your project, explain your options, and give you and your home the proper care you deserve.

In the San Francisco Bay Area, the importance of a strong property foundation is increased tenfold. 

This area, though beautiful, sits on several active faults. Scientists even suggest there’s a 72% chance a magnitude 6.7+ earthquake will hit the area in the next 30 years. 

If your home doesn’t have a strong foundation before this, it could end catastrophically. That’s why foundation services, including repair, replacement, and reinforcement, are essential in the Bay Area. 

Why Strong Foundations Are Important in the Bay Area 

In the last 150 years, the region has experienced 22 earthquakes of magnitude 6.0+. More will come as well. 

When this happens, not if, and your foundation fails, it can result in six-figure damage and, more severely, death. In fact, Bay Area regulators warn homeowners in the region to prepare for “liquefaction and landslide” hazards when quakes hit. 

Source: ABAG 

Strong, code-compliant foundations, however, will protect your home, investment, and loved ones. They keep the floor level, resist cracks, and hold your house plumb during seismic shaking. 

Common Foundation Issues in the Bay Area 

When it comes to foundation issues for properties in the Bay Area, they usually experience one of the following: 

• Soft Soils and Liquefaction: Much of the Bay Area is built on landfill or bay mud. These soils can act like quicksand, causing the home’s foundation to settle, tilt, or crack. 

• Expansive Clay Soils: Some inland areas in the Bay Area have clay-rich “shrink-well” soils. This solid has a lot of movement, causing hairline cracks in walls or uneven floors. 

• High Seismic Activity: The Bay Area is seismic country, so small, moderate, or heavy quakes can cause damage to the foundation, like loosening bolts, cracking concrete, etc. 

• Soft-Story Vulnerabilities: Soft-story homes are commonly found in the Bay Area, especially in California. If they don’t have proper bracing, these can collapse in a quake. 

• Landslide and Erosion Risks: The Bay’s hillsides are steep and often have loose soil. This can result in some homes being prone to landslides with improper foundations. 

• Poor Drainage and Flooding: Some foundations will sink due to improper drainage. This can cause the ground to erode, causing settlement or cracks. 

At Avant-Garde, we offer services that can repair, prepare, and combat each of the mentioned foundation issues. 

Foundation Work as a Long-Term Investment

Many Bay Area homeowners and investors hesitate to get foundational work done because of the perceived cost. 

But in reality, delaying repairs is generally the most expensive option. Minor cracks can grow into structural failures, uneven floors can cause stress distribution, etc. 

Therefore, addressing these issues not only protects your safety, but it also preserves the value of your property which in some cases, is your most valuable asset. 

Alongside this, having documented foundation repairs or upgrades for a Bay Area home helps it sell faster and at a higher price. Simply, buyers want peace of mind and are looking for a home built on a solid foundation, literally and legally. 

Plus, it will help preserve your property. When we do encounter a major earthquake (which will happen), you, your family, and your property will have the extra protection you deserve.

These are the very reasons why you shouldn’t look at foundation work as a burden. It’s an investment in your home, life, and future. 

Foundation Evaluation Services 

Before any work begins, it’s essential to understand the problem you’re dealing with. That’s why we offer foundation evaluation services to determine the condition of your home’s foundation. 

• General Foundation Evaluation & Report: We are a licensed contractor with decades of experience, and we will examine your home for things like cracks, uneven floors, and signs of moisture. We then take this information and create a report recommending repair options (if required). 

• Foundation Escrow Evaluation & Report: For real-estate assessments, we’ll perform a complete review to catch major issues like settlement or cracks, helping buyers (and sellers) make better investments. 

• Site Elevation Surveys: During a site survey, we map floor levels and surrounding grades, then we recommend options to ensure a level and stable foundation plus water drains away from your foundation adequately. 

These services are the foundation (pardon the pun) for a safer property. After these services, we can then focus on making the repairs and reinforcements. 

Repair and Reinforcement Services 

After an evaluation is complete, we’ll know what to repair and reinforce. While performing these services, we use proven methods for Bay Area soils, seismic activity, and local building codes. 

• Foundation Repair and Replacement: We pour new footings, epoxy cracks, or completely replace deteriorated foundations to restore structural integrity. 

• Concrete Slabs and Grade Beams: Slabs that have settled are lifted using foam injection or mudjacking. Grade beams can also be installed to distribute weight more evenly. 

• Foundation Concrete Piers and Push Piers: To lift and level the home, we can install concrete piers and push piers.  

• Home Leveling and Shoring: By using synchronized jacks, we can raise the home. This helps us align everything before we begin a foundation repair, replacement, or reinforcement. 

Most homes, from minor to major repairs, can benefit from our foundation services. 

Full Foundation Replacements & New Construction Services 

For new builds or complete rebuilds, our team offers full-scope foundation construction and site-prep services. 

• New Foundations and Framing: This includes everything from excavation to framing, ensuring new foundations meet California and local seismic codes. 

• Site Grading, Excavation & Hauling: We can also cut and fill to create level building pads, install a drainage system, and haul away any excess soil, ensuring proper grading. 

• Demolition & Hauling: Our team will also demolish old foundations and dispose of any debris following the correct environmentally friendly practices. 

At Avant-Garde, our goal is to provide complete end-to-end structural services to property owners, buyers, and investors in the Bay Area. 

Why Choose Avant-Garde 

We’re chosen by Bay Area residents, investors, and property developers because we understand the area and provide a full range of services. 

Local Bay Area Experience 

We live, breathe, and work in the Bay Area. We understand its unique geology, microclimates, and city permits. Our team has worked on projects across the entire region. From the thousands of homes in San Francisco all the way to Silicon Valley and beyond. 

That’s why we’re the go-to in the Bay Area. Our experience in Bay Area solids (clay, serpentine, and bay mud) and local building codes (city/county standards) ensures our clients get the most effective solution for their home’s needs. 

Code Compliant Solutions 

Safety and compliance are our number one priority. That’s why every foundation repair or installation meet state and local seismic codes (for example, California Residential Code, ASCE 7, etc.).

Our team will also go as far as obtaining all the necessary permits and scheduling inspections. This hands-off approach ensures that you remain compliant and safe without any additional hassle. We’ll take care of everything. 

Clear Communication 

Foundation work, to the untrained person, can be overwhelming. We understand this. That’s why we keep our communication clear, simple, and honest, turning an overwhelming project into something peaceful. 

Our team will walk you through the entire process. In plain language, we’ll explain what we find, what could happen, your options, and keep you informed along the way. No jargon or confusion, just clear updates so you know what’s going on. 

End-to-End Services 

We are your single source for everything from evaluation to the finished foundation. We’ll handle everything from A-Z, from surveying to repairs to complete rip-outs. No matter the property, Bay Area location, or issue, we’ll be more than happy to help. 

Service Areas 

From our headquarters based in San Leandro, we serve all homeowners, investors, and contractors in the SF Bay Area: 

• Alameda
• Contra Costa
• Marin
• Napa
• San Francisco
• San Mateo
• Santa Clara
• Solano
• Sonoma

The quotes and prices of our service will include additional charges based on the distance of your property from our headquarters. 

Contact Avant-Garde Today 

If you’ve noticed foundation cracks, sloping floors, or have an older home in the Bay Area, schedule a meeting with Avant-Garde today. A minor issue, if not taken care of promptly, could turn into a big issue, resulting in six-figure property damage. 

Don’t wait for this to happen. Be proactive now and get Avant-Garde to perform an evaluation and report. See what’s wrong with your property’s foundation today and get accurate recommendations based on your problem, location, and budget.

As you probably know, construction in the Bay Area is complicated. Between strict building codes, aging house stock, city-by-city permitting rules, and seismic risks, it’s easy to feel overwhelmed before the project even begins. 

A proven way to make this a little easier is by starting with accurate, permit-ready plans and working alongside an expert consultant. This ensures that throughout every stage of your project, from permitting to construction, it is smooth and compliant. 

The Problem with Construction in the Bay Area

Construction in the Bay Area isn’t just about building. It’s about maneuvering around dense permitting rules, seismic regulations, and city-specific codes. 

It doesn’t matter where the project is located. In San Francisco, Oakland, or San Jose, each city has its own set of requirements, approval timelines, and review procedures. 

Take San Francisco’s Mandatory Soft Story Retrofit Ordinance, for example. Put simply, it mandates seismic upgrades for specific buildings built before 1978. 

If you perform these upgrades and fail to provide sufficient supporting documentation of the project, you risk delays, costly revisions, or outright rejections. 

These issues don’t only occur with large projects either. Even small residential projects can get completely derailed by missing structural, seismic, or life safety elements. 

And if you are unsure if your project falls under Plan Set A or FEMA P-1100-2A/2B standards, it could get set back weeks. 

The Solution to Bay Area Construction 

The solution to the unique challenges of Bay Area construction lies in proactive, expert planning and support. At Avant-Garde, that’s exactly what we can help with. 

We start with preparing permit-ready plans by using the right standards for your project, whether that’s Plan Set A for typical retrofits or FEMA P-1100-2A/B for more advanced configurations.

From there, we can handle permit procurements, coordinate with planning departments, and proactively submit required documents before the review begins. You may hire us to complete the entire construction, or to just act as a consultant.

For our consultation services, after the permit is approved, we do not just disappear. We may also provide mid-construction evaluation and documentation to confirm that the construction aligns with the approved plans. This helps reduce costly change orders and inspector pushback. 

Alongside this, we can review contractor-submitted or homeowner-submitted plans and assist with review and bid evaluations. By doing this, we can help you compare the scope accurately and avoid under-detailed or overpriced proposals. 

By addressing these issues before the project even begins, we help other Bay Area contractors and property owners move on with their projects confidently, compliantly, and without surprises. 

Why Permit-Ready Plans Are Important 

One key way of streamlining the entire lifecycle of a Bay Area construction project is permit-ready plans. Here’s why: 

1. Avoid Project Delays

Projects with incomplete, unclear, or generally poor plans often face multiple rounds of reviews. And, depending on your local building department, each review could be weeks long. 

Permit ready plans, however, reduce the back-and-forth as they are already code-compliant from the start. This is very important, considering San Francisco’s permit approval time increased by 83% from 2012. 

2. Prevent Red Tags and Work Stoppages

Unpermitted or improperly documented work in the Bay Area is a recipe for stop-work notices. This violation can also be expensive. Some code violation penalties in the SF area can range from $250 to $1,000 per day. 

With approved, permit-ready plans, however, your project is built on solid grounds, reducing the risk of shutdowns or retroactive corrections tenfold. It’ll also save you a ton of money as you’ll be code compliant. 

3. Minimize Plan Check Revisions

It’s not uncommon for building departments to routinely flag vague or inconsistent drawings. However, with permit-ready plans, they anticipate reviewer questions and include all the necessary structural, seismic, and life safety details upfront, resulting in fewer revisions. 

4. Ensure Faster Permit Approval

By delivering a clean, professional submittal package, permit-ready plans make it easier for plan checkers to approve your project. When everything is code-compliant and well-documented, it’s far more likely to get approved the first time. 

5. Comply with Local Seismic Retrofit Standards

In the Bay Area, there are a lot of rules surrounding seismic safety. Our permit-ready plans are based on templates like Plan Set A or FEMA P-1100-2A/B to ensure compliance from day one. 

6. Simplify Contractor Bidding and Pricing

For both parties, the buyer and contractor, having clear, detailed plans leaves less room for interpretation. Contractors can price projects more accurately, and customers can receive more accurate quotes and deadlines, ensuring partnership chances and reducing project confusion. 

7. Improve Communication with Building Officials

A complete building plan acts as a ‘common’ language between multiple individuals, like an architect, a contractor, the building department, etc. This guarantees that everyone is working from the same page, reducing confusion, building trust, and ensuring efficient project workflow. 

This is also important for code compliance. Without everyone following a detailed project plan, code violations can occur. This is probably why 60% of newly constructed homes have code violations. 

How Avant-Garde Can Help 

At Avant-Garde, we support our clients through every step, from the initial consultation to the final inspection, offering fully integrated permitting, planning, and construction oversight. 

Permit-Ready Plans

We develop code-compliant and permit-ready plans tailored to your specific building and jurisdiction. 

Starting with standardized templates like Plan Set A or FEMA P-1100-2A/2B, we create each drawing with project-specific details, such as shear walls, hold-downs, framing, foundation work, bolting, seismic floor connections, etc. 

All of our drawings integrate accepted seismic, structural, and life safety components, ensuring your project gets approved with minimal revisions. 

Permit Procurement Services

On your behalf, our team will take care of the permitting process for you; we can take care of the entire process for you. 

We will determine whether your project qualifies for Over-the-Counter processing or full plan review, prepare the required documents, submit applications, and coordinate with local departments directly. 

Alongside this, we’ll track and manage everything. This includes the review status, responding to comments, handling corrections, and more. Saving you time, headaches, and money. 

Construction Support & Evaluation

Once construction begins, our team will provide on-site evaluations and confirm whether the work aligns with the approved plans. 

We’ll review everything. From the foundation bolts to shear wall nailing and more, we’ll verify critical elements and even issue a Construction Evaluation Report that documents progress and compliance. 

By having such a proactive approach, it helps resolve issues early, preventing costly stoppages or rework. 

Plan Review & Bidding Support

We also assist during pre-construction. We do this by reviewing your plans for code compliance and clarity before you bid out the job. 

Afterwards, we can help you prepare clean bid packages so you can price accurately and fairly. 

Once bids come in, we can then evaluate them, line by line, comparing them and helping you choose the right contractor for your project, whether that be us or another company. 

Why Work with Avant-Garde 

Partnering with Avant-Garde means working with Bay Area experts who know the region’s construction landscape inside and out. 

Deep local Expertise 

Our team has decades of experience navigating city-specific codes across the Bay Area. We’re fluent in San Francisco’s soft-story requirements as well as retrofit standards in Oakland, San Mateo, and beyond. Our team even stays up to date with CEBC appendices and FEMA retrofit criteria. 

Experience with Bay Area Jurisdictions

We’ve successfully delivered projects in all nine Bay Area counties. As a result, we know how each local agency operates, whether it’s SF DBI’s permit routing, Alameda’s review timelines, or Santa Clara’s inspection process. We’ve worked extensively in all Bay Area jurisdictions. 

Professional Credentials You Can Trust

Avant-Garde is fully licensed, insured, and professionally accountable. We follow all state-approved construction standards, city codes, and seismic guidelines expertly. 

Worker misclassification is a serious issue in the construction industry across the nation, including the SF Bay Area. Misclassifying employees as independent contractors allows employers to avoid paying payroll taxes, minimum wage, overtime, providing benefits like meal and rest breaks, and workers’ compensation, effectively enabling wage theft. 

This also puts law-abiding businesses at a competitive disadvantage.

All our workers are correctly classified and covered under our insurance policies. 

We follow all local, state, and federal laws.

Service Areas 

We serve the whole of the San Francisco Bay Area from our San Leandro HQ, including: 

• Alameda
• Contra Costa
• Marin
• Napa
• San Francisco
• San Mateo
• Santa Clara
• Solano
• Sonoma

The prices of our services are based on the distance the project is from our office in San Leandro (if callouts are required). 

Contact Us Today 

If you’re ready to streamline your Bay Area project, contact us at Avant-Garde. With our full-service solutions for permitting, design, and construction support, we’ll ensure you avoid costly delays, stay compliant with all local regulations, and confidently navigate your project.

These, in terms of a home’s structural damage, are a recipe for disaster. All, if not taken care of quickly, can turn minor problems into large ones, making property restoration and structural repair services critical. 

Common Causes of Structural Damage

Most structural issues around the Bay Area come from termites, moisture, or soil movement, often a mix of all three. 

Termite Infestations 

In the Bay Area, subterranean termites live in the soil and chew through wood framing. 

These termites, in fact, are very active in this region. Plenty of studies confirm that 1 in 5 homes in most northern Californian cities have or will be attacked by termites. 

Simply, there’s a high chance that termites can cause structural damage if you live in this area. And generally, you only spot termites’ damage once they’ve hollowed out sill plates, studs, joists, etc. 

Dry Rot and Wood Decay 

When you let rain, plumbing leaks, or humidity sit against wood, fungus (aka “dry rot” can attack the framing. 

You’ll notice when this happens, when wood starts to feel soft or crumbly, paint starts to peel, or your property has a somewhat musty smell. 

The thing about dry rot is that it can spread quickly. It can spread through floor joists, rim joists, roof sheathing, etc. 

Soil Settlement and Clay Shrink-Swell 

Many Bay Area neighborhoods are built on clay-rich, expansive soils; however, this is a huge problem.

For example, clay expands when wet and shrinks when dry. This results in a property’s foundation almost “bouncing” with the seasons (particularly an issue with older homes). 

Over the years, this can cause imbalances, uneven floors, etc., which normally cause cracks, poor load balance, etc. 

Outdated Construction Materials 

Some older Bay Area homes may have unreinforced brick foundations, old concrete with no rebar, or even salt-contaminated mortar. 

This doesn’t mean your property will suddenly “collapse” overnight. However, it is at risk, and the building materials and practices we follow today are incredibly more durable. 

Seismic Activity 

The Bay Area is known for having hundreds of small earthquakes a year. These, though small, can cause structural damage if your property hasn’t been seismically reinforced. 

Plus, a large earthquake will happen within our lifetime. The USGS estimates a 72% chance of a magnitude 6.7 or greater earthquake hitting the Bay Area before 2043. This, without question, will cause structural damage to unprepared or poorly built homes. 

The Dangers of Delaying Repairs 

Putting off a repair is easy and can seem harmless. However, some minor issues can quickly turn into major structural problems. 

Rapid Deterioration 

A small termite colony or patch of rot can multiply without you even knowing it. In just a few years, a simple, $1,000 repair can turn into $10,000, maybe even $100,000 worth of damage. 

Mold Growth 

As the EPA states, “Mold may grow whenever mold spores land on wet surfaces”. In other words, mold can grow wherever water leaks and sits. 

Therefore, if you have poor property grading, a leaky pipe, or anything else related to water not being drained from your property, mold can grow rapidly. 

The complications are also massive. It can damage your family’s health while destroying your property’s structural integrity. 

Property Value and Insurance Risk

Let’s be honest here. You, I, and everybody else wouldn’t buy a mold or termite-infested house unless it was at a huge discounted price. 

Alongside this, insurers may raise premiums or refuse claims if you’re aware of structural problems caused by mold, termites, etc., and don’t address the issue promptly.

What you need is documentation. This will prove that you’ve had professionals carry out the work, giving property buyers and insurers peace of mind. 

Our Property Restoration & Structural Repair Services 

At Avant-Garde, we offer a range of structural restoration and repair services, ensuring your home, investment, and family stay safe. 

Termite Repair & Replacement 

We will replace all the wood they’ve eaten through. 

That means removing everything from the infested sill plates, joists, or studs, and installing new, pressure-treated timber. 

Dry Rot Repair & Replacement 

Upon finding water-damaged wood, we cut it out, fix the leak, and then replace the wood. 

Every single piece of the affected beam or board will be replaced during the service. This ensures fungus, like dry rot, doesn’t expand to other structural wood in the home. 

After replacing the wood, we can also seal and paint the new lumber (or plywood, etc.) to increase its resistance to fungus. 

Site Elevation Surveys 

In a flood-prone area, it’s extremely important to know exactly how high your home sits. 

That’s why we can perform a complete Site Elevation Survey to document your home’s lowest floor elevation relative to flood levels.
Additionally, it will determine how level your home is.

Home Leveling 

Sometimes, a property’s floors can slope or a wall can pull away, causing imbalances within the property’s structural components. 

By using hydraulic jacks, steel pilings, reinforced pier, grout, etc., our specialists can re-level your house and ensure even weight distribution once again. 

This ensures that your property is protected from any future cracks or major structural problems that can occur. 

Home Shoring 

During serious seismic or foundation repairs, sometimes we’ll use temporary shoring to support your property’s structure. 

In short, this means installing temporary, strategically placed beams, posts, & piers beneath your home to hold everything in place while work is being done. 

We may also use shoring if we spot a dangerous lean or large gaps. This will ensure your home stays safe throughout the repair.

Why Choose Avant-Garde 

Our team has decades of local experience, licensed professionals, and has an excellent reputation with Bay Area property owners. 

Local Bay Area Experience 

We’ve restored and repaired every type of Bay Area home (Victorians, Craftsman, mid-century, etc.) in every major city in the region. Because of this, we understand all the local soil types, weather, and codes, ensuring you get specialized, local expertise.

Full-Service Approach 

Our team will handle everything from start to finish. We’ll help you identify the risks, explain the severity, give you options, and then complete the work. We’ll also go out of our way to get you the necessary permits to complete the project. 

Licensed & Insured 

We carry a full General Contracting license, and our crews are entirely insured. Because of this, every project we execute meets and exceeds California standards. We can also openly discuss insurance details or provide copies of licenses if required.

Clear Communication 

Before the work begins, you’ll be provided a written estimate breaking down each step and cost. During the project, we’ll also keep you updated through progress reports and/or photos. 

If anything unexpected comes up, this will be communicated clearly and immediately. We’ll also explain your options in detail to ensure complete transparency. 

Quality & Professionalism 

Our team uses premium materials and practices. This is to guarantee that every repair is done the right way the first time. We also hold the highest level of professionalism, working as respectfully, cleanly, and quietly as possible. 

Service Areas 

At Avant-Garde, we proudly serve all homeowners throughout the Bay Area. Including, but not limited to: 

• San Francisco (all neighborhoods)
• Marin County (Mill Valley, Sausalito, Novato, etc.)
• East Bay (Oakland, Berkeley, Walnut Creek, Pleasanton, etc.)
• Peninsula (Daly City, San Mateo, Redwood City, Palo Alto, etc.)
• South Bay (San Jose, Santa Clara, Mountain View, Redwood City)
• North Bay (Novato, Petaluma, Santa Rosa)

It doesn’t matter where you live in the Bay Area; feel free to contact us. We’ll provide an assessment and quote suitable for the work. 

Act Now Before Damage Worsens 

Don’t wait until a minor issue becomes an absolute disaster. The longer structural problems go unfixed, the more dangerous and expensive they become. Act today by calling Avant-Garde. We’ll professionally evaluate your property, identify any issues, recommend all options, and perform the work seamlessly.

For homeowners in the area, that means your home’s structural safety is a top priority. It won’t only increase your property value but, most importantly, keep everybody inside safe. 

A home in this area should be seismically-ready. This will ensure that when an earthquake happens, your home, family, and everyone surrounding you will be safe. 

At Avant-Garde, we specialize in seismic retrofitting and structural reinforcement. We can spot the weaknesses on your property and install code-compliant hardware, ensuring that your property has the protection needed when the next earthquake happens. 

What Is Seismic Retrofitting & Structural Reinforcement?

Seismic retrofitting is the modification of a property’s existing structure to make it more resistant to earthquakes. It evolves strengthening the parts of your house, like the foundation and the frame, so when an earthquake happens, the structure can absorb the seismic forces.

Structural reinforcements are very similar. They involve adding or enhancing critical elements, for example, foundations, connections, walls, frames, and supports, to improve the building’s stability and load-carrying capability during an earthquake. 

Why is this Essential in the Bay Area?

The Bay Area is considered “high risk” regarding earthquakes. Here, it’s not a matter of “if” it will happen, but “when”. That’s why seismic retrofitting and structural reinforcements are incredibly important in this region. 

Life Safety

In a strong earthquake, an unreinforced home can completely or partially collapse, causing serious injuries or worse. Therefore, retrofitting is all about protecting your family or tenants’ lives. 

By anchoring the house to the foundation, bracing the walls, etc., it ensures your home has the best chance to remain intact during a quake. This increases the safety of life, giving you peace of mind for the future. 

Property Protection and Cost Savings

For most, your property is your biggest investment. Seismic retrofitting, however, can protect your property from devastating damage. 

The California Residential Mitigation Program even mentions that a $7,000 retrofit can protect your house from six figures in damages. 

In other words, by retrofitting your property now, you save yourself hundreds of thousands of potential dollars in damage in the future. 

Alongside this, there are insurance providers that recognize the value of retrofitting a property. Therefore, they may offer discounts for homes that fulfill this requirement, which could save you money. 

Legal and Social Imperatives

Alongside the above, it’s a growing legal and social responsibility. There have even been many Bay Area cities that have adopted mandatory seismic retrofit ordinances for certain buildings. 

For example, San Francisco’s Mandatory Soft-Story Retrofit Program. This required about 4,900 older wood-frame apartment buildings to be legally seismically strengthened. 

Our Specialized Seismic Retrofitting Services

At Avant-Garde, we strengthen homes in the San Francisco Bay Area by identifying and upgrading weak points. 

We do this through several retrofitting services, including: 

• Crawl Space Retrofits: For homes with raised foundations, we can bolt the wood framing (mudsill) to the concrete foundation and brace the short cripple walls. 

• EBB (Earthquake Brace + Bolt) Retrofits: This is a state-standardized retrofit for older homes that lack bolting and bracing. With an EBB retrofit, we install seismic anchor bolts and shear panels at the bottom of the house. 

• Basement Retrofits: When a home has a basement, we can reinforce tall foundation walls and interior framing using structural sheathing, engineered lumber, or steel. 

• Soft-Story & ESS Retrofits: This is only applied to buildings with living space over garages or other large openings. With this, we install steel moment frames, proprietary shear walls, plywood shear walls, and/ or special anchorage. 

Each of our retrofitting services is tailored to two factors: the property’s structure and the specific Bay Area codes. 

Structural Systems & Hardware We Install

When it comes to seismic safety, there’s more to it than just anchoring. It requires the right structural systems to absorb seismic energy. 

Because of this, we use specific compounds to form your home’s earthquake defense: 

• Structural Steel: We reinforce identified weak areas with steel beams, columns, etc. to support large openings, sagging floors, stiffen cripple walls, etc. 

• Moment Frames & Moment Columns: These are steel frames designed to resist lateral loads, like garage door openings. We install them with soft-story retrofits to preserve the living space above while preventing collapse. 

• Hardy Frames, Strong-Walls & Shear Panels: These are ideal for narrow spaces. We use products like MiTek Hardy Frames®, Simpson Strong-Walls®, and site-built plywood shear panels to brace vulnerable walls. 

Again, like with any of our services. These are thought about and installed following specific building codes at the state and city levels. 

Anchorage & Seismic Fastening Systems We Use 

A seismic retrofit is only as strong as its connections. That’s why we use specialized anchorage systems to tie your home together. 

• Seismic Connectors: We use a range of brackets, plates, and ties to reinforce joints across the structure. These include foundation plates, L-shaped framing angles, hurricane ties, etc. 

• Hold-Downs & Tension Ties: We’ll install heavy-duty hold-downs at the ends of shear walls to resist uplift and overturning. Tension ties, framing clips, straps, etc., may also be used to link framing members. 

• Mechanical & Epoxy Anchors: To secure wood framing to concrete, we’ll install either mechanical anchors, epoxy anchors, or both to ensure a solid structure and foundation. 

The end result is a continuous load path that keeps every part of your retrofit working together. 

Engineered Lumber Products We Use in Retrofitting

Wood is still the heart of most homes in the San Francisco Bay Area. That’s why, in many of our projects, we used engineered lumber for beams, headers, and framing enhancements. 

Generally, these are LVLs, LSLs, and PSLs: 

• LVL (Laminated Veneer Lumber): Beams made from thin wood veneers glued in layers. 

• LSLs (Laminated Strand Lumber): Made from wood strands or flakes compressed with an adhesive. 

• PSLs (Parallel Strand Lumber): Constructed of long wood strands laid parallel and bonded together. 

All of the mentioned are a class of material called Structural Composite Lumber (SCL). These are specially manufactured for superior strength, consistency, and stability.

Why Choose Avant-Garde for Seismic Retrofitting?

Choosing the right contractor for your seismic retrofit is critical. That’s why we at Avant-Garde bring you structural expertise and local knowledge.

Local Expertise That Matters

We’re a Bay Area contractor with deep roots and knowledge of the local home types, seismic risks, permits, and rules. 

From the Victorian houses of San Francisco to the East Bay’s bungalows, we understand just how different structures respond to earthquakes. 

Alongside this, our knowledge of local building codes, retrofit ordinances, and grant programs (like EBB and ESS) ensures your retrofit is code-compliant and cost-efficient. 

Precision Installations

Our team takes seismic retrofitting seriously. That’s why every anchor, bracket, and panel is installed to exact specifications with no shortcuts. 

With each of our projects, we only use the highest quality of material. From graded lumber to heavy-duty connectors. We treat every project like it’s our home, focusing on its safety, compliance, and structural integrity. 

Fully Licensed and Insured

Avant-Grade is a fully licensed California contractor with a long list of experience, general liability, and workers’ comp coverage. Therefore, all our technicians working on your property have the expertise and coverage required. 

Transparent Communication

Alongside the above, we’re completely clear throughout each step of the process. Even if you’re not up-to-date with the latest construction terminology or building requirements, don’t worry, our team will explain the entire process in plain language. 

At the end of the day, our goal is to empower you and make you feel confident that you’ve made the right choice. That’s why we’re extremely transparent and communicative, ensuring the project possibly impacts you, not overwhelms you. 

Service Area Coverage

Our headquarters are based in San Leandro. However, we cover the entire SF Bay Area. For example: 

• Alameda
• Contra Costa
• Marin
• Napa
• San Francisco
• San Mateo
• Santa Clara
• Solano
• Sonoma

The prices of our services will depend on the distance from our headquarters. 

Book an Evaluation Today

Don’t wait for the next earthquake to expose your home’s weakness. Act now and protect your investment and family. Schedule your professional seismic assessment with Avant-Garde today and take the first steps to a safer, stronger home.

Between the region’s seismic volatility, aging housing stock, and complex building codes, property owners face huge risk when it comes to a property’s structural strength and compliance. 

That’s the very reason you need specialized construction consulting and site evaluation services. These services ensure properties in the Bay Area are technically sound, secure, and code compliant. 

Challenges for Bay Area Property Owners & Developers 

The San Francisco Bay Area is full of beauty, from its Victorian houses to its iconic Golden Gate Bridge. Beneath this, however, is a complex set of challenges for property owners and developers. 

One of the most serious is seismic risk. The Bay Area region has multiple major fault lines, including the San Andreas, Hayward, and Calaveras faults. 

Reference: USGS

Due to these faults being so close to each other, Geologists have estimated that there’s a 72% probability that more than one magnitude 6.7+ earthquake will hit the Bay Area. 

Unfortunately, though, most buildings in the region were constructed before modern seismic codes. Because of this, they lack a lot of structural reinforcements needed to handle such an earthquake. 

Adding to this is the patchwork of seismic retrofit ordinances enforced by individual Bay Area cities. For example, San Francisco’s Mandatory Soft Story Retrofit Program (MSSP). 

This requires thousands of multi-unit, soft-story buildings to be retrofitted by specific deadlines, all with their own permitting and compliance requirements. Meanwhile, neighboring cities like Oakland and Berkeley have their own, often differing requirements. 

Plus, trying to navigate construction projects, code compliance, or legal disputes, is becoming increasingly difficult. It’s a huge maze of permits, regulations, and liability concerns, exposing property owners and developers to all types of risk. 

Why These Services Matter for Bay Area Properties

In an area with high seismic risk, aging buildings, strict local ordinances, expert site evaluations, consulting, and witness are essential for Bay Area properties. 

1. Identify Structural Issues Early

A complete site evaluation helps uncover critical yet hidden vulnerabilities, like unbolted sill plates, deteriorated mudsills, foundation settlement, or unbraced cripple walls. 

Early detection, though, via crawl space evaluation, site surveying, etc., allows for a cost-effective correction before any extensive structural failure occurs. 

2. Reduce Earthquake Risks

Older homes without bolting and cripple-wall bracing have a much higher risk of slipping off their foundations during an earthquake. 

Site evaluations and seismic retrofit assessments, however, provide the data required to strengthen your building to meet or exceed current seismic performance standards. 

3. Prevent Costly Repairs

Deferred maintenance, poor renovations, or unnoticed design flaws can lead to expensive reconstruction costs later on. 

By getting an expert’s opinion, they can help you avoid such costs by identifying: 

• Code violations from previous work
• Substandard framing or joist spans
• Inadequate drainage contributing to foundation degradation
• Improper load paths or compromised hardware connections

By addressing these issues before remodeling, listing, or leasing a property can save you a ton of time, money, and stress. 

4. Support Legal and Insurance Claims

Construction disputes and insurance claims are mainly based on documentation. 

A qualified consultant will be able to provide you with a detailed report of your building, including technical assessment, site photos, etc., that can support: 

• CSLB complaints and bond claims
• Insurance coverage disputes for structural or seismic damage
• Civil lawsuits related to construction negligence or defects

This report acts as third-party evidence that has a lot of weight in arbitration, mediation, or court, helping property owners deal with non-compliant contractors or denied claims. 

5. Ensure Code Compliance

Out of all regions in the U.S., the Bay Area’s building codes are the most rigorous and complex. 

Each city, from San Francisco to San Jose, has different retrofit mandates, permit workflows, and compliance deadlines.

By getting site consultation and evaluation, it ensures all the necessary codes are being followed, improving the building’s integrity, performance, etc. 

6. Make Confident Real Estate Decisions

Selling or building in the Bay Area without any structural review is a massive gamble. 

Site consultations and foundations evaluations, however, remove this risk by providing unbiased information that supports: 

• FHA/VA loan underwriting
• 203(k) rehab loan applications
• Seller disclosures and punch lists
• Pre-offer evaluations for buyers

This is not just for buyers. For sellers, it can help identify and resolve issues that reduce liability and increase the property’s market value. 

When to Schedule a Site Evaluation

There are several common triggers that may cause you to get a site evaluation. These include: 

• You’re purchasing or selling an older home or multi-unit property.
• Cracks have appeared in your walls, ceilings, or slab.
• Your floor feels sloped, or doors no longer align.
• You plan to remodel or add square footage.
• You received a notice from the city about a retrofit ordinance.
• You suspect previous work may not meet the code.

If any of these apply to you, an expert consultation is strongly recommended. It could save you thousands in repairs or legal risk. 

Services Offered at Avant-Garde

Our site consultation, evaluation, and expert witness services are comprehensive, ensuring you’re protected in every situation. 

Seismic Retrofit Evaluation for Earthquake Safety

To assess your property’s earthquake readiness, our seismic retrofit consulting combines hands-on review with regulatory expertise. 

We assess everything, from anchorage conditions to cripple wall bracing, lateral force continuity, shear panel integrity, and more. Each of these assessments will be based on specific guidelines like FEMA P-1100, Chapter A3, and/ or ASCE 41. 

Alongside this, we can complete the CEA Dwelling Retrofit Verification Form for any properties, especially those participating in the Earthquake Brace + Bolt program or insured through the California Earthquake Authority.

Foundation Evaluations & Structural Reports

Our site-visits cover every component of your building’s substructure, from its foundation footings and stem walls to its settlement and uplift conditions. 

These general foundations and escrow evaluation reports are then tailored for homeowners, buyers, and sellers, providing clear repair recommendations, annotated photo documents, and data. 

Construction Expert Witness & Claim Support

Our licensed consultants also serve as neutral, credentialed expert witnesses in construction defect litigation, CSLB arbitration, and insurance disputes. 

Therefore, we’re fully equipped to investigate claims involving negligence, code violations, and failed retrofits, providing court-ready documentation. 

Site Surveys & Property Consultations

By using precise tools, we can perform a site survey to help detect issues like structural heaving, subsidence, or uneven floor conditions. 

Plus, our consultants can help guide renovation planning, due diligence efforts, and seismic retrofit decisions whenever you need help. 

Why Choose Avant-Garde 

When it comes to protecting your Bay Area property, choosing Avant-Garde means choosing a team you can trust. 

Proven Experience in Structural Consulting

With decades of courtroom support, thousands of evaluations completed, and 3,000 seismic retrofits under our belt, we understand the Bay Area’s building codes, geology, soil profiles, and permitting hurdles. 

In-Depth Site Evaluations with Transparent Reporting

Our evaluations include annotated drawings, photo documentation, and itemized scopes of work. They are also formatted to meet the expectations of building officials, lenders, legal counsel, and homeowners alike. 

Trusted by Homeowners for Legal and Code Support

Avant-Garde isn’t just a “consultation firm”. We’re advocates for safe, code-compliant construction in the San Francisco Bay Area. It doesn’t matter whether you’re responding to a stop-work order or building a case against a contractor, our reports hold weight. 

Our Coverage Areas in the San Francisco Bay Area 

At Avant-Garde, we serve all nine counties from our San Leandro HQ, including: 

• Alameda
• Contra Costa
• Marin
• Napa
• San Francisco
• San Mateo
• Santa Clara
• Solano
• Sonoma

Our services are priced based on the distance of our office in San Leandro. 

Book a Site Visit Today 

Don’t wait for the next earthquake or permit denial to see the vulnerabilities of your property. Contact Avant-Garde today and guarantee the protection of your property, family, or renters.