San Francisco Bay Area & Napa Valley
The Bay Area's Bespoke Builder
Custom homes, remodels, ADUs, and estates across San Francisco, Marin, and Napa Valley — crafted without shortcuts, built to endure.
Meet Robin & Her Team
The People Behind Every Build.
Mavericks Builders is Robin Nielsen and a team of skilled craftspeople, specialty subcontractors, and construction professionals who bring every project to life. Robin collaborated with the US Green Building Council to develop the LEED for Homes program — and three decades later, we bring that same precision to homes across the Bay Area and Napa Valley.
- USGBC LEED for Homes Pioneer — published documentation
- Gold Award winner — Best Home & Commercial Builder, Napa Valley
- 30+ years · female-owned · License #1042971
The Standard We Hold
San Francisco Precision. Brought to Every Project.
We are a full-service bespoke general contractor: custom homes, whole-home remodels, ADUs, additions, commercial builds, and winery estates across San Francisco, Marin, the Peninsula, the East Bay, and Napa Valley. One award-winning standard, every market.
Green building and fire resistance aren't separate services to upsell — they're an integrated philosophy that makes every project perform better, last longer, and protect the people inside it. We were building this way years before the codes required it.
And we never stop learning. Our team continuously researches and adopts the advanced materials and methods that architects and demanding clients increasingly specify.
Full-Service Bespoke Construction
Everything We Build.
Bespoke Home Remodels
Kitchens, baths, and whole-home renovations executed with architectural discipline across the Bay Area and Napa Valley.
Learn More 🏗Custom Home Construction
Ground-up custom homes on complex urban lots and exposed hillside sites — built to the highest standard from the foundation up.
Learn More 🧰Advanced Construction Methods
SIP panels, structural steel, concrete, and advanced panel systems — the materials of tomorrow, executed correctly.
Learn More 🏡ADU Construction
Accessory dwelling units navigated through SF, Marin, and Napa County codes — done right the first time.
Learn More 🍷Winery & Estate Builds
Tasting rooms, estate homes, and fire-hardened structures for Napa Valley's most demanding sites.
Learn More 🌿Green Building & LEED
From the USGBC LEED for Homes demonstration project to today's high-performance, low-energy estates.
Learn More 🔥Fire-Resistant Construction
Ignition-resistant assemblies and defensible-space planning built to CBC Chapter 7A and Title 24, Part 7.
Learn MoreWhere We Build
Advanced Construction Methods
Built With the Materials of Tomorrow.
While most contractors default to conventional construction, the Mavericks Builders team continuously researches and adopts advanced building systems. We build with the materials and methods that architects, engineers, and demanding clients increasingly specify — and we have the expertise to execute them correctly. Our commitment: never stop learning.
Structural Insulated Panels
We are experienced in SIP panel construction — delivering superior insulation, structural integrity, and faster build timelines than conventional framing. Ideal for energy-efficient and net-zero builds.
Steel Frame Construction
Steel-frame homes offer unmatched strength, fire resistance, and design flexibility. We build with structural steel for clients and architects who demand longevity and precision engineering.
Concrete Construction
From poured-in-place concrete to precast systems, we bring concrete expertise to custom homes, estates, and commercial projects — delivering thermal mass, fire resistance, and architectural drama.
Panel & Modular Systems
We work with advanced panel and modular building systems that reduce waste, improve quality control, and accelerate timelines without compromising design intent.
For Architects & Designers
A Trusted Partner for Architects & Designers.
Mavericks Builders is the GC partner Bay Area architects and designers choose when the project demands precision, accountability, and deep material knowledge. We read plans. We respect design intent. We communicate proactively and deliver without shortcuts. From Pacific Heights to the Silverado Trail, we build what great architects design.
Mavericks has excellent relationships with many of the Bay Area's top architects, engineers, and designers. When clients bring their thoughts and ideas, our team helps connect them with the right architect or designer. No matter what stage of planning or pre-construction, our method of working closely with the design team ensures the project vision's journey from theory to application is seamless.
Selected Work
Featured Projects
In Their Words
Trusted Across the Region
Mavericks Builders did a great job on our deck. Robin, the owner, is super professional, has great taste, and gave us really valuable advice on the design. I will definitely hire them for my next remodeling job!
I am so impressed by Robin. She is an extremely knowledgeable contractor and has a great team of people around her to get the job done right. If you're looking to remodel or do a flip project, you won't be disappointed with Mavericks Builders.
I was very impressed with how seamless the Mavericks process is and how they integrate with your realtor and financing. I thought it would be much more complicated, but I'm getting ready to start my project thanks to Robin!
★★★★★ 5.0 on Google (13 reviews) · 4.4 on Houzz · Recommended by 11 on Alignable
Ready to Build Something Extraordinary?
Call 415-604-0070 or schedule a free consultation. We review every inquiry personally.