SoMa · San Francisco
Home Addition in SoMa
Refresh & Build is a licensed San Francisco contractor specializing in home addition projects in SoMa. SoMa's mix of live-work lofts, condominiums, and converted warehouses creates unique renovation opportunities.
Home Addition in SoMa
SoMa's mix of live-work lofts, condominiums, and converted warehouses creates unique renovation opportunities. Refresh & Build has extensive experience with SoMa's modern building types, HOA coordination requirements, and the specific permit pathways for high-rise and commercial-to-residential conversions.
Neighborhood Housing Stock
Lofts, condominiums, converted warehouses, and newer construction high-rises
Permit Notes for SoMa
HOA approval often required before DBI permits in condo buildings. We coordinate with building management to streamline approval.
What's Included
- Room additions and bump-out additions
- Second-story and vertical additions
- ADU (Accessory Dwelling Unit) construction
- Garage-to-living-space conversions
- Foundation work and structural engineering
- Full architectural and design coordination
- SF DBI and Planning permit management
Typical Cost Range
$150,000–$500,000+
Free itemized quotes — no obligation
Home Addition in SoMa — FAQ
How much does a home addition cost in SoMa?
Home Addition costs in SoMa typically fall within our San Francisco range of $150,000–$500,000+. Lofts, condominiums, converted warehouses, and newer construction high-rises can influence project complexity and cost. We provide free, detailed estimates after a site visit.
Do I need a permit for a home addition in SoMa?
Yes — SF DBI permits are required for most home addition work in SoMa. HOA approval often required before DBI permits in condo buildings. We coordinate with building management to streamline approval. Refresh & Build handles all permit applications and inspections on your behalf.
What is an ADU and how much does one cost in San Francisco?
An ADU (Accessory Dwelling Unit) is a secondary housing unit on your property — it can be a garage conversion, basement unit, or new detached structure. ADUs in San Francisco cost $80,000–$200,000 and can generate significant rental income to offset your mortgage.
How long does a home addition take in San Francisco?
Home additions typically take 4–9 months from start to finish. SF Planning and permit approval can take 3–6 months for complex additions. We help expedite the approval process and begin site prep work in parallel.
Home Addition in Nearby Neighborhoods
Other Services in SoMa
Ready for Your Home Addition in SoMa?
Get a free, no-obligation consultation. We'll visit your SoMa home, assess the project, and provide a detailed quote.