642 Washington St, San Francisco
3 home-service permits on record at 642 Washington St, San Francisco; no roofing permit on record.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Dec 16, 2025 | otc alterations permit: revision to permit: 202505196805. install 200a rated panel. wire gutter. electrical only | Electrical | $1 | — | Finaled May 13, 2026 | 202508132995 |
| Jun 3, 2025 | otc alterations permit: rev to pa# 2025-0103-7686: omit architectural key notes used in previous approved permit update rcp and lighting schedule upadate supply and exhaust fan schedule update electrical plans add gas shut off valve and cd to sink tail piece | Electrical | $1 | — | Finaled May 13, 2026 | 202505196805 |
| Jan 29, 2025 | otc alterations permit: tenant improvement and change of use permit: change of use from vacant space former garment shop to new office and mechanical/electrical/plumbing improvement throughout | Plumbing | $80,000 | — | Finaled May 13, 2026 | 202501037686 |
On Washington St
291 permits on record on Washington St.
| Trade | Permits | Since Oct 3, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 150 | 29 | $21,000 | $1–$90,000 | Jul 29, 2026 |
| Plumbing | 78 | 12 | $72,500 | $30,000–$194,856 | Aug 10, 2026 |
| Electrical | 30 | 11 | $30,000 | $1–$90,000 | Aug 14, 2026 |
| Heating and cooling | 26 | 2 | — | under 5 | Sep 26, 2025 |
| Water heater | 4 | 1 | — | under 5 | Mar 17, 2026 |
| Solar | 3 | 2 | — | under 5 | Jul 17, 2026 |
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. 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. 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.