ADU cost in San Francisco (2026)
The typical ADU in San Francisco was valued at $80,000 on its city permit (middle half: $40,000 to $180,000), across 869 ADUs 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 $50,000 | 248 | 29% |
| $50,000 to $100,000 | 218 | 25% |
| $100,000 to $150,000 | 113 | 13% |
| $150,000 to $200,000 | 90 | 10% |
| $200,000 to $250,000 | 47 | 5% |
| $250,000 to $300,000 | 33 | 4% |
| $300,000 to $350,000 | 25 | 3% |
| $350,000 to $400,000 | 8 | 1% |
| $400,000 and over | 87 | 10% |
ADU builders with the most jobs in San Francisco
| Rank | Contractor | Jobs | Contact |
|---|---|---|---|
| 1 | Reliable Construction Inc San Francisco, licensed 13 years | Call (415) 756-3011 | |
| 2 | Doherty Restoration, Inc. San Francisco, licensed 33 years | Visit website | |
| 3 | S L M Development Inc. Redwood City, licensed 22 years | Visit website |
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By ZIP code
The 12 ZIP codes with the most ADUs valued on the permit (at least 20 each).
| ZIP code | Jobs | Median | Middle half |
|---|---|---|---|
| 94112 | 111 | $80,000 | $35,000 to $150,000 |
| 94110 | 94 | $100,000 | $50,000 to $178,000 |
| 94122 | 78 | $80,000 | $50,000 to $194,000 |
| 94124 | 67 | $50,000 | $30,000 to $150,000 |
| 94114 | 58 | $101,000 | $40,000 to $364,000 |
| 94134 | 54 | $58,000 | $25,000 to $99,000 |
| 94116 | 53 | $89,000 | $42,000 to $150,000 |
| 94121 | 44 | $129,000 | $58,000 to $189,000 |
| 94117 | 41 | $75,000 | $24,000 to $150,000 |
| 94118 | 37 | $100,000 | $40,000 to $145,000 |
| 94115 | 30 | $87,000 | $36,000 to $184,000 |
| 94131 | 30 | $150,000 | $62,000 to $425,000 |
By year
| Year | Jobs | Median | Middle half |
|---|---|---|---|
| 2021 (September to December) | 53 | $80,000 | $35,000 to $150,000 |
| 2022 | 214 | $76,000 | $40,000 to $174,000 |
| 2023 | 153 | $92,000 | $40,000 to $186,000 |
| 2024 | 182 | $96,000 | $40,000 to $199,000 |
| 2025 | 132 | $80,000 | $34,000 to $140,000 |
| 2026 (January to September) | 135 | $100,000 | $50,000 to $254,000 |
What the records show
- Share of jobs in each budget range: under $150,000: 67% (579 of 869); $150,000 to $300,000: 20% (170 of 869); $300,000 to $450,000: 5% (42 of 869); over $450,000: 9% (78 of 869).
- The median was $76,000 in 2022 (214 jobs) and $80,000 in 2025 (132 jobs), up 5%.
- Across the ZIP codes above, the median ran from $50,000 in 94124 to $150,000 in 94131.
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: adu.json.