850 Bay St, San Francisco
2 home-service permits on record at 850 Bay St, San Francisco; the roof was last permitted on Nov 15, 2017 at a declared value of $20,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Nov 15, 2017 | otc alterations permit: revision to pa #201602099116-s1: elevatpr shaft at roof has increase from 9'-6" to 10'-6" above roof due to elevator equipment. glass canopy at stair trellis is being replaced with new glass. lighting at roof deck is being upgraded to led. outdoor case work is being replaced/ expanded | Roofing | $20,000 | — | Finaled Dec 4, 2017 | 201707273071 |
| Sep 2, 2016 | additions alterations or repairs: extending elevator to roof. existing roof deck will be brought into current code compliance | Roofing | $100,000 | — | Finaled Dec 4, 2017 | 201602099116 |
On Bay St
117 permits on record on Bay St.
| Trade | Permits | Since Oct 4, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 68 | 11 | $20,100 | $13,200–$33,800 | Apr 2, 2026 |
| Plumbing | 25 | 3 | — | under 5 | Jun 22, 2026 |
| Electrical | 16 | 2 | — | under 5 | Jan 23, 2026 |
| Heating and cooling | 4 | 1 | — | under 5 | May 14, 2026 |
| Solar | 3 | 1 | — | under 5 | Aug 13, 2026 |
| Water heater | 1 | 0 | — | under 5 | Oct 16, 2017 |
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.