Home / Service Areas / San Francisco
ADU & new-home builds in San Francisco.
Independent construction project management for San Francisco homeowners — competitively bid, tracked in real time, and delivered for up to 10% less than your best builder offer.
Last updated: June 2026
Local know-how, on your side.
San Francisco's dense lots and historic housing stock make it one of the Bay Area's most ADU-active cities. Many San Francisco ADUs are interior conversions of ground-floor space, garages, or in-law units, and the city runs its own ADU programs alongside California's state law.
Permitting in San Francisco: San Francisco reviews ADU applications through the Planning Department and the Department of Building Inspection. The city offers both a state ADU pathway and its own local program, and interior and conversion ADUs are common given limited lot space. Rent-control and tenant rules can apply to certain conversions, so early feasibility review matters.
Whatever your San Francisco lot allows, we scope it honestly, put the trades out to competitive bid, and manage the build from permit to keys — so you capture the value for up to 10% less than a markup contractor would charge.
Typical Bay Area ADU cost ranges.
General 2026 market estimates — your project is scoped and bid on its own.
A detached ADU generally runs $250K–$450K, a garage conversion $120K–$250K, and a junior ADU $75K–$150K — about $250–$450 per square foot. We competitively bid each trade and target a delivered cost up to 10% below your best builder offer. Full detail in our ADU cost guide.
Managed, not marked up — in San Francisco.
- Competitive trade bidding so you never overpay for San Francisco labor or materials.
- Real-time dashboard — budget, schedule, and quality, any time.
- One accountable manager from first estimate to final walkthrough.
- Local permitting know-how to keep your San Francisco project moving.
San Francisco ADU FAQ.
Are most San Francisco ADUs conversions?
Yes — given small lots, many San Francisco ADUs convert existing garage, ground-floor, or in-law space rather than building a new detached structure, though detached units are possible where the lot allows.
Does San Francisco have its own ADU program?
San Francisco offers a local ADU program in addition to the California state pathway. Which is better depends on your building, unit count, and goals — we confirm the right path during feasibility.
Building in San Francisco?
Send us your lot details and any bid you've received. We'll show you what's possible — and what you'd save.
Get a Free Estimate