420 Cambridge St, San Francisco
2 home-service permits on record at 420 Cambridge St, San Francisco; the roof was last permitted on Aug 22, 2020 at a declared value of $7,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Aug 22, 2020 | ReRoof: reroofing - remove existing roofing. install 30 lb fiberglass felt. torch down bitumen over fiberglass | Roofing | $7,000 | — | issued | 202008202143 |
| Apr 14, 2015 | otc alterations permit: ground floor only. no structural work. 1)legalize extg bedroom. 2) legalize extg full bath. 3) construct new laundry room. 4) construct new recreation room. 5)relocate extg water heater and extg furnace. 6) remove extg storage closet. 7)replace in kind 3 windows | Water heater | $20,000 | — | Finaled Mar 11, 2016 | 201504032734 |
On Cambridge St
39 permits on record on Cambridge St.
| Trade | Permits | Since Oct 4, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 32 | 8 | $17,145 | $9,400–$23,185 | May 19, 2026 |
| Water heater | 3 | 0 | — | under 5 | Dec 31, 2018 |
| Plumbing | 2 | 1 | — | under 5 | Apr 22, 2026 |
| Solar | 1 | 1 | — | under 5 | Sep 1, 2026 |
| Electrical | 1 | 0 | — | under 5 | Dec 9, 2015 |
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.