410 Townsend St, San Francisco
8 home-service permits on record at 410 Townsend St, San Francisco; the roof was last permitted on Aug 15, 2020 at a declared value of $150,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Dec 15, 2021 | otc alterations permit: direct replacement of water source heat and ac units no alterations to electrical or piping | Electrical | $25,000 | — | Finaled Apr 6, 2022 | 202112094056 |
| Jun 15, 2021 | otc alterations permit: replace: 1 cooling tower with new of same capacity, 1 boiler with new of the same capacity,1 primary pump of same capacity, 2 condenser water pumps with new of same capacity | Heating and cooling | $220,000 | — | Finaled Nov 4, 2021 | 202106041702 |
| Aug 15, 2020 | additions alterations or repairs: voluntary seismic improvements: wall anchorage & coninuity ties at roof. **maher n/a** | Roofing | $150,000 | — | Finaled Mar 19, 2021 | 201911086877 |
| Mar 16, 2020 | otc alterations permit: 1st fl - mechanical & electrical work for ti at ste 120 ref pa 2019-1230-0889 | Electrical | $95,000 | — | Finaled Nov 18, 2020 | 202003096521 |
| Feb 6, 2020 | otc alterations permit: revision to pa# 2020-0113-1713. to reuse heat pump 1-20 | Heating and cooling | $1 | — | Finaled Nov 18, 2020 | 202002053584 |
| Jan 13, 2020 | otc alterations permit: mechanical and electrical work for tenant improvement on the 1st fl ref 201912098973 | Electrical | $60,000 | — | Finaled Nov 18, 2020 | 202001131713 |
| Aug 5, 2015 | otc alterations permit: remove nextel radio equipment, antennas and above ground coax. n/a ordinance #155-13. fire rated assemblies to be maintained/patch roofing as necessary | Roofing | $10,000 | — | Finaled Nov 25, 2015 | 201506118738 |
| Apr 21, 2015 | otc alterations permit: 1st floor: t.i. include demo of non structural partitions and bldg.new nonstructural partitions, all new or revised hvac electrical and life safety work will be design build and submitted on seperate permit. bldg fully sprinkler. n/a for the maher | Heating and cooling | $60,250 | — | Finaled Jun 10, 2015 | 201504173977 |
On Townsend St
208 permits on record on Townsend St.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 29 | 2 | — | under 5 | Jan 29, 2026 |
| Heating and cooling | 88 | 4 | — | under 5 | Sep 30, 2026 |
| Electrical | 63 | 5 | $75,000 | $6,200–$204,605 | Jun 25, 2026 |
| Plumbing | 27 | 3 | — | under 5 | Sep 30, 2026 |
| Solar | 1 | 0 | — | under 5 | Apr 1, 2019 |
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.