NeighborsPaid
JurisdictionSan Francisco, CA
Work classified asHome Addition
Permits read677
Windowlast 24 months
Data as of2026-09-24

Permit record · California

What San Francisco paid for a home addition

Not an estimate. We read 677 permits filed with San Francisco and took the value written on each one.

Median declared value $86,794
Home Addition · San Francisco 677 permits
$15k 10% $25k 25% $87k median $242k 75% $526k 90%

Half of these jobs landed between $25,000 and $242,186. One in ten came in under $15,000; one in ten ran past $525,581.

Monthly median · Home Addition▲102% since 2025-04
2025-04 · $80,000high $196,0002026-09 · $161,648

The same job, other cities

CityMedian Typical rangePermits
San Francisco, CA $86,794 $25,000 – $242,186 677
Marin County, CA $188,000 $51,250 – $397,500 91
Chicago, IL $150,000 $80,000 – $300,000 1,168
Seattle, WA $150,000 $61,000 – $256,106 1,197
Austin, TX $125,000 $44,500 – $288,719 68
Montgomery County, MD $110,700 $45,000 – $250,000 851
Baton Rouge, LA $103,000 $49,667 – $256,250 176
Raleigh, NC $88,589 $38,555 – $174,062 417
New York, NY $82,500 $32,550 – $262,740 3,370
Sacramento, CA $77,000 $30,000 – $200,000 129
Los Angeles, CA $75,000 $40,000 – $140,000 7,734
Corona, CA $60,000 $35,000 – $80,000 41
New Orleans, LA $59,138 $21,052 – $163,180 816
Kansas City, MO $52,711 $25,000 – $120,000 153
Detroit, MI $48,500 $21,500 – $100,000 163
Everett, WA $40,000 $19,200 – $127,089 110
Anaheim, CA $19,903 $14,598 – $27,214 138

Across the cities we cover, the same job runs from $19,903 in Anaheim to $188,000 in Marin County — a 9.4× spread. See all cities →

Other projects in San Francisco

ProjectMedianPermits
Roof Replacement $16,0006,806
Kitchen Remodel $65,7005,445
Bathroom Remodel $31,0572,871
Siding or Stucco $17,0001,557
Deck or Patio $18,0001,059
Garage $20,000751
Solar Panels $25,950406
Window Replacement $13,860289
Interior Remodel $108,000285
HVAC Replacement $15,000213
ADU / Guest House $165,000167
Foundation Repair $27,38879
Water Heater $5,20056

Source

Source: City and County of San Francisco DBI — Building Permits. Permits issued in the last 24 months, classified by the work described on the permit. The figure is the declared value of the work — what the applicant reported to the city. It excludes work done without a permit and can sit below a final invoice. Read the full methodology. Data refreshed 2026-09-24.