NeighborsPaid
JurisdictionSan Francisco, CA
Work classified asHome Addition
Permits read687
Windowlast 24 months
Data as of2026-09-04

Permit record · California

What San Francisco paid for a home addition

Not an estimate. We read 687 permits filed with San Francisco and took the value written on each one.

Median declared value $85,000
Home Addition · San Francisco 687 permits
$15k 10% $25k 25% $85k median $241k 75% $535k 90%

Half of these jobs landed between $25,100 and $241,438. One in ten came in under $15,000; one in ten ran past $534,662.

Monthly median · Home Addition▲486% since 2025-04
2025-04 · $80,000high $468,5942026-09 · $468,594

The same job, other cities

CityMedian Typical rangePermits
San Francisco, CA $85,000 $25,100 – $241,438 687
Marin County, CA $200,000 $50,000 – $400,000 93
Chicago, IL $150,000 $80,000 – $295,000 1,175
Seattle, WA $150,000 $61,750 – $250,912 1,212
Austin, TX $132,500 $46,500 – $300,000 66
Montgomery County, MD $113,965 $45,000 – $246,100 851
Baton Rouge, LA $100,000 $48,667 – $250,000 173
Raleigh, NC $86,182 $38,303 – $168,659 407
New York, NY $80,840 $32,000 – $252,000 3,399
Sacramento, CA $77,000 $30,000 – $200,000 129
Los Angeles, CA $75,000 $40,000 – $140,000 7,767
Corona, CA $59,147 $35,000 – $80,000 40
New Orleans, LA $58,675 $21,786 – $165,214 820
Kansas City, MO $50,164 $25,000 – $120,121 171
Detroit, MI $49,250 $22,000 – $100,000 162
Everett, WA $40,000 $20,000 – $140,907 106
Anaheim, CA $19,903 $14,464 – $27,830 140

Across the cities we cover, the same job runs from $19,903 in Anaheim to $200,000 in Marin County — a 10.0× spread. See all cities →

Other projects in San Francisco

ProjectMedianPermits
Roof Replacement $16,0007,068
Kitchen Remodel $65,0005,492
Bathroom Remodel $31,1282,892
Siding or Stucco $17,0001,602
Deck or Patio $17,8071,068
Garage $20,000749
Solar Panels $26,208394
Window Replacement $13,000295
Interior Remodel $108,435284
HVAC Replacement $15,000220
ADU / Guest House $165,000172
Foundation Repair $27,69480
Water Heater $5,40055

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 2026-09-04.