21 Brompton Ave, San Francisco
1 home-service permit on record at 21 Brompton Ave, San Francisco; the roof was last permitted on Nov 23, 2020 at a declared value of $350,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Nov 23, 2020 | additions alterations or repairs: proposed interior remodel of single family home. convert storage area to conditioned space - bedroomm, living room & full bath; 2nd fl: reconfigure layout. 3rd fl: add full bathrooms. add roof deck | Roofing | $350,000 | — | Finaled Sep 26, 2023 | 202001282969 |
On Brompton Ave
8 permits on record on Brompton Ave.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 4 | 0 | — | under 5 | Dec 11, 2023 |
| Heating and cooling | 2 | 0 | — | under 5 | Sep 6, 2022 |
| Plumbing | 1 | 0 | — | under 5 | Jul 27, 2021 |
| Electrical | 1 | 0 | — | under 5 | Jul 13, 2018 |
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. This address is in that cohort. 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. 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 2, 2026. Owner names are not shown on any page.