21 Seal Rock Dr, San Francisco
1 home-service permit on record at 21 Seal Rock Dr, San Francisco; the roof was last permitted on Dec 21, 2021 at a declared value of $14,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Dec 21, 2021 | ReRoof: re-roofing: remove and replace roofing material / existing roofing material | Roofing | $14,000 | — | issued | 202112214849 |
On Seal Rock Dr
32 permits on record on Seal Rock Dr.
| Trade | Permits | Since Oct 3, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 25 | 6 | $11,830 | $8,000–$23,800 | Dec 8, 2025 |
| Electrical | 5 | 0 | — | under 5 | Apr 19, 2023 |
| Plumbing | 1 | 1 | — | under 5 | Jun 26, 2025 |
| Heating and cooling | 1 | 0 | — | under 5 | Jun 9, 2022 |
Roof replacement cost in San Francisco
Across 5,896 one- and two-family reroof permits since October 3, 2024, most declared values run from $7,650 to $32,000 (the middle 80%); the median is $15,000 and half fall between $10,788 and $21,763. 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 3, 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 3, 2026. Owner names are not shown on any page.