3761 21st St, San Francisco
4 home-service permits on record at 3761 21st St, San Francisco; the roof was last permitted on May 22, 2025 at a declared value of $15,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| May 22, 2025 | ReRoof: reroofing- no hotworks (ref pa# 202505227096 for roof repair) | Roofing | $15,000 | — | Finaled Aug 25, 2025 | 202505227098 |
| May 22, 2025 | otc alterations permit: repair roof in some spots. (ref pa# 202505227098 for reroof) | Roofing | $15,000 | — | Finaled Aug 25, 2025 | 202505227096 |
| May 21, 2025 | otc alterations permit: replace all windows, windows at master bedroom & bath #3, master bathroom with 2 skylights, bath #3 renovation, electrical upgrade to 200 amp panel & rewire entire house. kitchen renovation with folding door, relocate powder room. convert bathroom to bedroom #4 | Electrical | $270,000 | — | Finaled Jan 2, 2026 | 202505206817 |
| Sep 19, 2016 | ReRoof: re-roofing | Roofing | $9,880 | — | Finaled Oct 25, 2016 | 201609198057 |
On 21st St
181 permits on record on 21st St.
| Trade | Permits | Since Oct 4, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 123 | 21 | $15,000 | $10,000–$257,293 | Jun 18, 2026 |
| Plumbing | 21 | 2 | — | under 5 | Mar 27, 2026 |
| Electrical | 16 | 4 | — | under 5 | Sep 29, 2026 |
| Heating and cooling | 10 | 4 | — | under 5 | Mar 23, 2026 |
| Water heater | 8 | 2 | — | under 5 | Jun 18, 2026 |
| Solar | 3 | 0 | — | under 5 | May 8, 2024 |
Roof replacement cost in San Francisco
Across 5,889 one- and two-family reroof permits since October 4, 2024, most declared values run from $7,650 to $32,000 (the middle 80%); the median is $15,000 and half fall between $10,800 and $21,760. The lowest on record is $1 and the highest $4,315,170. This address is in that cohort. Every permit behind that range.
Furnace, heat pump or air conditioner replacement cost in San Francisco
Across 291 one- and two-family heating and cooling permits since October 4, 2024, most declared values run from $1 to $224,616 (the middle 80%); the median is $25,196 and half fall between $5,000 and $116,433. The lowest on record is $1 and the highest $1,600,000. This address is in that cohort. 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 4, 2026. Owner names are not shown on any page.