642 Alvarado St, San Francisco
3 home-service permits on record at 642 Alvarado St, San Francisco; the roof was last permitted on Sep 13, 2018 at a declared value of $71,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Mar 18, 2021 | otc alterations permit: unit 311: replace washer/ fryer; upgrade line, upgarde electrical panel, no structural work, no moving walls | Electrical | $12,000 | — | Finaled Apr 15, 2021 | 202103186812 |
| May 9, 2019 | otc alterations permit: unit 107. remodel kitchen & bath, in-kind. upgrade electrical, comply w/ 150.0k3 & 150.0k5. add washer / dryer in closet. connect to drain louvered door | Electrical | $40,000 | — | Finaled Jul 19, 2019 | 201905090247 |
| Sep 13, 2018 | ReRoof: re-roofing | Roofing | $71,000 | — | Finaled Nov 20, 2018 | 201809130019 |
On Alvarado St
62 permits on record on Alvarado St.
| Trade | Permits | Since Oct 15, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 38 | 9 | $14,000 | $4,150–$77,832 | May 27, 2026 |
| Electrical | 9 | 0 | — | under 5 | Jan 31, 2023 |
| Plumbing | 9 | 0 | — | under 5 | May 20, 2022 |
| Water heater | 5 | 0 | — | under 5 | Aug 2, 2024 |
| Solar | 1 | 1 | — | under 5 | Jun 2, 2026 |
Roof replacement cost in San Francisco
Across 5,756 one- and two-family reroof permits since October 15, 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 $21,900. 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 294 one- and two-family heating and cooling permits since October 15, 2024, most declared values run from $31 to $247,000 (the middle 80%); the median is $26,000 and half fall between $5,125 and $124,285. 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 15, 2026. Owner names are not shown on any page.