ADU Architect San Francisco

Building an ADU in San Francisco is a great idea to add property value and a steady stream of rental income, but your investment is only as good as the architect you have for the job. What you’re looking for is the right partner to make it happen without delays, unexpected costs, or city red tape.

At Dwelling Lab, we solve those problems every day. As licensed California architects, we specialize in building ADUs, guiding homeowners and investors through design, permitting, and construction oversight. With us, get a complete process that moves your project from concept to finished unit with confidence and clarity that your investment pays off many times over.

Our ADU Design & Permitting Process
in San Francisco

Turning an idea into a finished ADU in San Francisco requires a process built to move smoothly through city requirements. At Dwelling Lab, we guide you through every stage:

Investigation & Planning
Detailed site analysis, zoning review, and feasibility study to ensure your lot qualifies for an ADU.
Schematic Design
Custom layouts for detached, attached, or garage-conversion ADUs that balance function, privacy, and aesthetics.
Construction Drawings
detailed blueprints which include everything a builder needs to ensure your ADU is built exactly as it was designed, meeting all safety and code requirements.
Permitting & Approvals
We manage the submittals, coordinate with city departments, and reduce back-and-forth that slows projects.
Construction Oversight
We partner with your contractor to ensure your ADU is built to plan, protecting your investment and design intent.

ADU Options for San Francisco Homeowners

Every property has its own potential. Dwelling Lab helps homeowners identify the ADU type that best fits their lot, goals, and budget:

  • Detached ADUs – Standalone backyard cottages with privacy and long-term value.

     

  • Garage Conversions – Transform underused garage space into a fully equipped apartment.

     

  • Partial Conversions & Additions – Hybrid solutions that expand living area by combining conversions with new square footage.

     

  • Junior ADUs (JADUs) – Smaller units built from existing space, affordable and often quicker to permit.
Our goal: build ADUs that last, protect families, and safeguard investments.

Let’s Design Your San Francisco ADU

Turn your property into something more—extra space, rental income, or long-term family living. Schedule your free consultation today and see what Dwelling Lab can create for you.

FAQ
How long does it take to get an ADU permitted?

Typically 4–6 months, depending on complexity.

At least 150 sq ft, with 7.5 ft ceiling, natural light, and proper exits

Costs vary, but averages range from $100,000 for conversions to $300,000+ for new detached units. Influencing factors include: Lot conditions, Fire-resilient materials and finishes, Permitting fees and city requirements, and Construction timeline and labor availability.

Yes. We audit the structure, align it with code, and manage the legalization process.

We provide end-to-end architectural services—design, permitting, and oversight—plus expertise in creative deal-making and fire resilience.

Get Started with Dwelling Lab in San Francisco

Your property has untapped potential. Whether you’re a homeowner seeking extra space or an investor looking to maximize returns, Dwelling Lab is here to help.