ADU Construction & Design in San Francisco
Premium ADU Construction Service in the Bay Area
At Chris William Construction, we’re your trusted partner for bathroom remodeling San Francisco projects, offering tailored solutions that fit your style and budget. With 8+ years of experience, we’ve completed everything from modern upgrades to full-scale bathroom renovation SF projects, helping homeowners achieve both beauty and functionality. Whether you’re exploring luxury bathroom remodel ideas or looking for a complete redesign, our team ensures every detail is handled with precision and care. From design to final touches, we make the bathroom remodeling San Francisco process smooth, stress-free, and built to last.
Our experts work closely with you to understand your vision, timeline, and budget. We’ve helped hundreds of Bay Area homeowners increase property value through custom ADUs and high-quality bathrooms, delivering exceptional results every time. With clear communication, innovative planning, and permit expertise, we guarantee your bathroom renovation SF or ADU project runs seamlessly. Trust us to bring your luxury bathroom remodel ideas to life while providing the craftsmanship and reliability that make us a leading choice for bathroom remodeling San Francisco homeowners.

Our ADU Construction Services
Custom ADU Design
Start fresh with a brand-new ADU tailored to SF/Bay Area lifestyles. Whether you’re in San Mateo, Marin, or San Francisco, we handle site prep, permits, and construction for modern studios, two-story units, or eco-friendly designs that match your vision.
Garage Conversions
Turn your unused garage into a stylish living space! We handle insulation, electrical upgrades, and plumbing to create a cozy studio, guest suite, or rental unit to meet local codes. Perfect for adding value without expanding your home’s footprint.
Backyard Cottage ADUs
Build a standalone ADU in your backyard for family, guests, or rental income. We design cottages that blend with your property, using durable materials and smart layouts to maximize space and comfort.
Multifamily ADU Solutions for Bay Area Properties
Own a duplex or multi-unit property? We design and build ADUs that comply with Bay Area zoning laws, adding legal units to boost rental income or house a family.
ADU Design & Permitting Assistance
Stressed about SF Planning Department rules? We streamline ADU permits for San Francisco and Bay Area homeowners, creating code-compliant designs and submitting paperwork fast. Avoid delays and start building sooner!


Why Choose Chris William Construction for ADU Construction?
ADU Specialists with Local Expertise
We’ve built 200+ ADUs across San Francisco, Oakland, and San Jose. From Sunset District’s foggy weather to Berkeley’s strict zoning laws, we know how to adapt designs and permits for your neighborhood.
Stress-Free Process
No more permit headaches! We handle SF Planning Department submissions, utility hookups, and inspections so you can focus on planning your new space. Our team keeps you updated weekly.
Custom Designs for Your Lifestyle
No two homes or families are the same. We tailor each ADU to match your goals, whether it’s extra income, space for loved ones, or simply more room to enjoy.
Transparent Pricing
Get a detailed quote upfront, no hidden fees. We work with your budget and suggest cost-saving ideas, like energy-efficient materials or phased construction for tighter budgets.
Award-Winning Craftsmanship
As a trusted San Francisco ADU contractor, we use premium materials and licensed tradespeople. Every project includes a warranty, so your investment stays protected.
FAQ's
Yes, you need city permits. We handle the entire permit process for you, so you don’t have to worry about the paperwork.
From permits to finish, projects typically take 6–12 weeks. Garage conversions are faster (6–8 weeks), while new builds may take longer.
Yes, in most cases, you can rent it out for extra income. We make sure your ADU meets all rental code requirements.
Costs vary based on size, design, and features. We offer free estimates and walk you through the options that fit your budget.
Areas We Serve
We proudly provide our construction services across the following cities and neighborhoods in the San Francisco Bay Area:
Inner Sunset
Outer Sunset
Parkside
Golden Gate Heights
West Porta
l
Sunset Boulevard area
Inner Richmond
Central Richmond
Outer Richmond
Lake Street area
Marina Green
Cow Hollow
Fort Mason
Crissy Field
& areas near the Presidio
& areas near South San Francisco

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