- Serving San Francisco & the Bay Area
ADUs & Garage Conversions
in San Francisco, CA
Maximize Your Space. Multiply Your Opportunities.
At Division General Building, we specialize in building Accessory Dwelling Units (ADUs) and Garage Conversions that enhance your property’s functionality and value.
Whether you’re creating a private guest suite, a rental unit, or a home office, our licensed and insured team designs and builds ADUs that are stylish, efficient, and fully compliant with San Francisco’s building codes.
Whether you’re creating extra living space, a rental unit, or a guest suite, our licensed and insured team delivers high-quality construction in San Francisco, CA.
What’s Included in Our ADU & Garage Conversion Services in San Francisco, CA
Building an ADU or converting your garage requires a detailed process that balances design, permitting, and construction. At Division General Building, we handle it all — so you can focus on your goals.
Design & Planning:
Customized layouts that maximize comfort, privacy, and functionality.
Permits & City Approvals:
We handle all necessary documents and approvals according to California ADU regulations and Bay Area city codes.
Foundation & Framing Work:
Structural adjustments and reinforcements to ensure safety and compliance.
Plumbing & Electrical Installation:
Complete systems for modern living — from bathrooms to kitchens.
Energy Efficiency Upgrades:
Eco-friendly materials and insulation to meet energy standards.
Garage Conversions:
Transform garages into studios, offices, guest suites, or income-generating rentals.
Why Build an ADU or Garage Conversion in San Francisco, CA
ADUs and garage conversions are one of the smartest investments you can make in San Francisco’s real estate market — offering flexibility, comfort, and financial return.
Generate Rental Income
ADUs create steady passive income in high-demand neighborhoods.
House Family Members
Perfect for in-laws, guests, or adult children.
Add Property Value
Homes with ADUs can increase in value by up to 25%.
Utilize Underused Space
Convert garages or backyards into livable, efficient spaces.
Sustainable Living
Build eco-friendly, energy-efficient housing in urban areas.
Why Choose Division General Building for ADUs & Garage Conversions in San Francisco, CA
We’re not just builders — we’re your partners in smart expansion.
At Division General Building, we bring design innovation, code expertise, and construction excellence to every project.
- Over 15 years of construction experience in the Bay Area.
- Fully licensed and insured under the California State License Board.
- Design & Build approach for cohesive, efficient results.
- Expert knowledge of San Francisco zoning laws and ADU regulations.
- Turnkey project management from design to delivery.
- Transparent pricing and guaranteed timelines.
Our ADU & Garage Conversion Process in San Francisco, CA
We’ve simplified the ADU construction process to ensure clarity, efficiency, and peace of mind. At Division General Building, we manage the entire process, ensuring your new ADU or converted garage adds both comfort and long-term value.
1. Design & Planning
We assess your property, goals, and zoning limitations, then create a detailed design plan optimized for your lot and budget.
2. Permits & Construction
Our team manages the permit process and begins construction — handling all framing, utilities, and finishes with precision and care.
3. Final Delivery & Inspection
Before turning over your new space, we ensure every system, finish, and detail meets the highest standards of quality and safety.
Happy Clients in San Francisco
& bay area
Here’s what homeowners and business owners across the San Francisco Bay Area are saying about working with Division General Building:
“I couldn't be happier with the work they did on my bathroom and kitchen.
The team was very professional, highly skilled, and easy to work with. They stayed in constant communication and were very hands-on with my project, which made the entire process stress-free. I called them on a Monday, and by Tuesday I already had a full invoice and pricing. Great service and great results!"
— Evellen D., San Mateo, CA
“We were happy with our kitchen and bathrooms remodeled.
The company did a great job in the remodeling. Very professional and hard working crew. They worked on our remodel for 6 weeks. The end result was a beautiful kitchen and 2 bathrooms. Highly recommend to others who want professional and high quality result. Would use them again in the future"
— Robert D., San Jose, CA
“Fair prices
We have worked with a lot of contractors and they are top notch! High quality, professional, fair price, and a pleasure to work with."
— Jason N., San Francisco, CA
Our Other Services
in San Francisco, CA
We provide complete construction and remodeling services under one roof — from design and engineering to permits and project management.
Frequently Asked Questions
Build your ADU or Garage Conversion in San Francisco, CA can bring many questions — and we’re here to make things clear.
Here are some of the most common questions our clients in San Francisco, CA ask before start to build your ADU or Garage Conversion.
An Accessory Dwelling Unit (ADU) is a self-contained living space on your property — often built as a backyard cottage, basement suite, or garage conversion.
Yes. Division General Building handles all permitting and ensures your project meets the San Francisco Department of Building Inspection (DBI) requirements.
Costs typically range from $150,000–$300,000, depending on size, design, and finishes. Garage conversions generally cost less.
The full process takes about 4 to 8 months, including design, permitting, and construction.
Yes — ADUs can be rented for long-term occupancy, provided they comply with city housing regulations.
Absolutely. We build detached, attached, and multi-level ADUs, adapting to your lot size and architectural style.
Explore More on The Builder’s Journal
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Ready to Build Your ADU or Garage Conversion in San Francisco, CA?
Expand your home, boost your property value, and create new opportunities — all with a trusted local expert.
At Division General Building, we make building your ADU or garage conversion simple, smart, and rewarding.
Phone
Need expert help with your next construction or remodeling project? Give us a call today.
(650) 255-3511
Main Phone
(415) 519-5505
Personal Phone
Send us a message with your project details, and one of our specialists will respond within 24 hours.
Location
Wherever you’re located, Division General Building delivers quality craftsmanship and dependable service — building excellence in every corner of the Bay.
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