Specializing in Custom ADUs & Whole Home Remodels
Fertiz Construction Inc. delivers premier architectural remodels, accessory dwelling units, and structural renovations across San Francisco and Marin County. Built with uncompromising quality and transparent communication.
Pacific Heights Modern Architectural Renovation
Complete interior gut, steel structural beam installation, and luxury kitchen execution by Fertiz Construction Inc.
Our Areas of Expertise
We focus on what we do best: high-efficiency ADU builds and high-end residential full home remodels tailored to local SF & Marin regulations.
Accessory Dwelling Units (ADUs)
Turn key detached backyard cottages, garage conversions, and basement conversions. We navigate California state ADU streamlined laws, local setbacks, and utility trenching.
- Detached backyard guest houses (400 - 1,200 sq.ft.)
- Garage & soft-story basement ADU conversions
- Rental income generation & family living
Full Home Remodels
Comprehensive interior and exterior renovations. From Victorian updates in San Francisco to hillside modernizations in Mill Valley and Sausalito.
- Load-bearing wall removals & steel beams
- Architectural layout reconfiguration
- Plumbing, electrical & mechanical retrofits
Kitchens & Great Rooms
Chef's kitchens, custom cabinetry, quartz waterfall islands, and indoor-outdoor living wall integrations engineered for modern family living.
- Custom cabinetry & architectural millwork
- Multi-slide glass door transitions
- Premium finish selection & installation
Before & After Transformations
Compare real San Francisco and Marin County properties before and after our complete ADU builds and high-end residential renovations.
Pacific Heights Victorian to Open Architectural Remodel
A complete whole-house transformation in San Francisco. We removed two central load-bearing walls, installed recessed steel flitch beams, and created a seamless continuous living and dining environment with custom millwork.
Mill Valley Detached Luxury Backyard ADU
Built for multigenerational living and rental income in Marin. We handled steep slope foundation grading, utility trenching, title 24 energy compliance, and completed an architectural cedar and matte black exterior finish.
Sausalito Coastal Chef's Kitchen & Great Room
Transformed an outdated galley kitchen into an expansive entertaining hub overlooking the bay. Fully integrated custom rift-sawn walnut cabinets, panel-ready luxury appliances, and smart Lutron Caseta controls.
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Supports ADU ground-up, kitchen transformations, & Victorian additions.Schedule Your 15-Minute Intake or Project Estimate
Whether you are expanding with an ADU in Marin County or planning a full home architectural remodel in San Francisco, we provide upfront feasibility, budget guidance, and permit timelines.
Deep Experience in San Francisco & Marin Permitting & Engineering
Building in the Bay Area requires navigating rigorous building codes, seismic engineering standards, historical neighborhood rules, and steep topography. Fertiz Construction Inc. brings local expertise to streamline your build.
San Francisco (SF DBI & Planning)
Specialized in soft-story retrofits, Victorian & Edwardian structural upgrades, property line setbacks, and SF DBI building permits.
Marin County (Mill Valley / Sausalito)
Experienced with sloped hillside foundations, WUI fire-zone materials, Title 24 energy compliance, and Marin ADU ordinances.
Licensed & Insured Compliance
Free Intake & Feasibility Call
Trusted by Bay Area Homeowners
See what homeowners in San Francisco and Marin County say about working with Fertiz Construction Inc.
"Fertiz Construction completed our Victorian renovation on schedule. They handled structural wall removals and engineered steel beam placement with unbelievable care. Highest recommendation!"
Marcus & Elena V.
"Building an ADU in Mill Valley can be tricky with setbacks, but Fertiz Construction made the entire process seamless. The quality of finish and communication was top tier."
David K.
"The 15-minute intake call gave us clarity on budget and timeline right away. Their craftsmanship on our custom walnut kitchen island and wide plank oak floors is outstanding."