Build SF

Construction company in San Francisco, CA 94102

Call (415) 503-9443 BuildSF.com Directions

About this company

Build SF is listed as a construction company at 171 Lily St in San Francisco, California, in San Francisco County. It is one of 16 general contractors in ZIP 94102.

Other construction companies nearby

Ashbury General Contracting & Engineering40 12th St, San Francisco

0.2 mi(415) 756-4260

3C Building Company77 Van Ness Ave, San Francisco

0.2 mi(415) 879-7341

Refresh and Build501 Oak St, San Francisco

0.2 mi(415) 678-8758

Golden Gate Fences - San Francisco Fence CompanyService area, San Francisco

0.2 mi(213) 528-5838

MS Portable Potty of San Francisco626 Fell St, San Francisco

0.3 mi(415) 761-3761

Moderate market, open fieldArea profitability for construction in ZIP 94102

Housing demand50

Sales pace, new listings and new construction. Source: Zillow

Customer spending power63

Household income and home values

Room for another contractor74

Less crowded than 74% of US ZIPs

Scored against every US ZIP. An index of local conditions, not this company's results.

County context

One of 570 general contractors in San Francisco County, CA.

77 roofing companies in San Francisco County, CA.

All 951 construction companies in San Francisco County, CA.

ZIP 94102 at a glance

Population: 35,976 (20,998 per sq mi)
Median age: 42
Households: Median income $60,431 · 35% earn six figures
Housing: 8% owner-occupied
Workforce: 64% labor-force participation · 7.7% unemployment

ZIP figures are US Census estimates for the ZIP area, not the company.

Housing market around ZIP 94102

Figures describe the local area, not this company.

Typical home value$742,000+10.1% past year · −10% in 10 years

Typical rent$3,768+25.5% past year

12-month value outlook+1.2%

New homes permitted, 20251,444San Francisco County

Days to sale agreement16San Francisco metro · 22 a year ago

Listings with a price cut21.2%San Francisco metro

Sale price vs list106.1%San Francisco metro

New construction sales91San Francisco metro, Aug · −32% from last year

Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.

Typical home value, last 10 years

Source: Zillow Home Value Index, Sep 2026.

Local building angle: San Francisco County permitted 1,444 new homes in 2025, including 1,394 apartment units. 21% of the homes in this ZIP were built since 2000.

Local figures are estimates from public records and Zillow housing data, updated regularly.