Home addition cost in San Francisco (2026)
The typical home addition in San Francisco was valued at $150,000 on its city permit (middle half: $60,000 to $350,000), across 981 home additions with city permits issued from September 2021 to September 2026.
How the values spread
The numbers behind the chart
| Value on the permit | Jobs | Share |
|---|---|---|
| Under $100,000 | 340 | 35% |
| $100,000 to $200,000 | 214 | 22% |
| $200,000 to $300,000 | 126 | 13% |
| $300,000 to $400,000 | 88 | 9% |
| $400,000 to $500,000 | 64 | 7% |
| $500,000 to $600,000 | 41 | 4% |
| $600,000 and over | 108 | 11% |
Home addition contractors with the most jobs in San Francisco
| Rank | Contractor | Jobs | Contact |
|---|---|---|---|
| 1 | Mission Home Remodeling Inc San Francisco, licensed 5 years | Visit website | |
| 2 | Saturn Construction Co San Francisco, licensed 21 years | Visit website | |
| 3 | C H Burnham Inc San Francisco, licensed 15 years | Call (415) 407-4036 |
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By ZIP code
The 12 ZIP codes with the most home additions valued on the permit (at least 20 each).
| ZIP code | Jobs | Median | Middle half |
|---|---|---|---|
| 94110 | 102 | $182,000 | $70,000 to $350,000 |
| 94114 | 101 | $240,000 | $100,000 to $495,000 |
| 94116 | 85 | $150,000 | $90,000 to $250,000 |
| 94131 | 83 | $175,000 | $78,000 to $383,000 |
| 94122 | 80 | $165,000 | $70,000 to $300,000 |
| 94118 | 78 | $178,000 | $58,000 to $384,000 |
| 94121 | 74 | $195,000 | $65,000 to $392,000 |
| 94112 | 73 | $100,000 | $27,000 to $190,000 |
| 94127 | 50 | $196,000 | $105,000 to $390,000 |
| 94123 | 48 | $150,000 | $45,000 to $506,000 |
| 94117 | 41 | $200,000 | $50,000 to $450,000 |
| 94107 | 40 | $204,000 | $58,000 to $464,000 |
By year
| Year | Jobs | Median | Middle half |
|---|---|---|---|
| 2021 (September to December) | 54 | $141,000 | $65,000 to $238,000 |
| 2022 | 165 | $165,000 | $60,000 to $350,000 |
| 2023 | 201 | $146,000 | $50,000 to $325,000 |
| 2024 | 190 | $150,000 | $51,000 to $386,000 |
| 2025 | 217 | $160,000 | $57,000 to $300,000 |
| 2026 (January to September) | 154 | $225,000 | $97,000 to $413,000 |
What the records show
- Share of jobs in each budget range: under $100,000: 35% (340 of 981); $100,000 to $250,000: 28% (273 of 981); $250,000 to $500,000: 22% (219 of 981); over $500,000: 15% (149 of 981).
- The median was $165,000 in 2022 (165 jobs) and $160,000 in 2025 (217 jobs), down 3%.
- Across the ZIP codes above, the median ran from $100,000 in 94112 to $240,000 in 94114.
Every figure here is the job value written on the city permit, not the price paid. Permit values usually run below the final price, so get more than one quote. Values under $1,000 are placeholders and are left out. Median and middle half: half of the jobs were valued above the median; the middle half runs from the 25th to the 75th percentile. Source: San Francisco building, electrical and plumbing permits, from September 2021 to September 2026. Data updated September 24, 2026. The same figures as data: addition.json.