340 31st Ave, San Francisco
1 home-service permit on record at 340 31st Ave, San Francisco; no roofing permit on record.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Feb 6, 2015 | otc alterations permit: upgrade & replacing sink & bathroom & new water supply line. install 1 main door. upgrade electrical panel | Electrical | $85,000 | — | expired | 201502067734 |
On 31st Ave
223 permits on record on 31st Ave.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 181 | 44 | $15,360 | $8,226–$24,700 | Aug 13, 2026 |
| Electrical | 13 | 3 | — | under 5 | Aug 10, 2026 |
| Plumbing | 12 | 2 | — | under 5 | Aug 6, 2026 |
| Heating and cooling | 8 | 1 | — | under 5 | Jan 29, 2025 |
| Water heater | 7 | 3 | — | under 5 | Sep 28, 2026 |
| Solar | 2 | 2 | — | under 5 | Mar 2, 2026 |
Roof replacement cost in San Francisco
Across 5,921 one- and two-family reroof permits since October 2, 2024, most declared values run from $7,700 to $32,000 (the middle 80%); the median is $15,000 and half fall between $10,800 and $21,770. The lowest on record is $1 and the highest $4,315,170. Every permit behind that range.
Furnace, heat pump or air conditioner replacement cost in San Francisco
Across 292 one- and two-family heating and cooling permits since October 2, 2024, most declared values run from $1 to $224,154 (the middle 80%); the median is $25,098 and half fall between $5,000 and $115,240. The lowest on record is $1 and the highest $1,600,000. Every permit behind that range.
Source
San Francisco Department of Building Inspection, via DataSF, pulled nightly; the assessor roll for the property fields. As of October 2, 2026. Owner names are not shown on any page.