300 Main St, San Francisco
3 home-service permits on record at 300 Main 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 |
|---|---|---|---|---|---|---|
| Jul 26, 2018 | otc alterations permit: 1st fl: ti on existing notifier nfs2-3030. adding 2 speaker strobes, 2 duct smoke detectors, and 1 dual monitor module for fsd status. ref #201806131809 | Heating and cooling | $8,000 | — | Finaled Oct 25, 2018 | 201807255529 |
| Jul 14, 2017 | sign - erect: install 2 double faced electrical signs, same size, over north and east entrances | Electrical | $8,000 | — | issued | 201707071275 |
| Apr 21, 2017 | otc alterations permit: plaza a - 1st floor tenant improvement adding to nfs2-3030 1 digital audio amplifier, 1 strober power supply, 17 speaker strobe, 10 duct smoke detectors, 1 smoke detector, 3 control relays & 2 dual input modules, 2 speaker strobe will be relocated in basement 2nd floor. ref pa 2016-0901-6605 | Heating and cooling | $16,800 | — | Finaled Aug 17, 2017 | 201704214628 |
On Main St
123 permits on record on Main St.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 7 | 0 | — | under 5 | Sep 19, 2024 |
| Electrical | 69 | 13 | $145,000 | $12,813–$999,250 | Jul 7, 2026 |
| Heating and cooling | 29 | 3 | — | under 5 | Apr 3, 2026 |
| Plumbing | 15 | 4 | — | under 5 | Feb 12, 2026 |
| Water heater | 2 | 0 | — | under 5 | Aug 1, 2017 |
| Solar | 1 | 0 | — | under 5 | Dec 17, 2018 |
Roof replacement cost in San Francisco
Across 5,921 one- and two-family reroof permits since October 2, 2024, most declared values run from $7,700 to $32,000 (the middle 80%); the median is $15,000 and half fall between $10,800 and $21,770. 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 292 one- and two-family heating and cooling permits since October 2, 2024, most declared values run from $1 to $224,154 (the middle 80%); the median is $25,098 and half fall between $5,000 and $115,240. 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 2, 2026. Owner names are not shown on any page.