950 Mason St, San Francisco
9 home-service permits on record at 950 Mason St, San Francisco; the roof was last permitted on Apr 5, 2024 at a declared value of $4,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Apr 5, 2024 | otc alterations permit: fire alarm addition on roof, basement, and loby. add 2 monitor modues and communication for the monitoring of the fire pump ref pa#202307252879 | Roofing | $4,000 | — | Finaled May 24, 2024 | 202404059446 |
| Feb 29, 2024 | additions alterations or repairs: interior 50 hp 208v 3 ph fire pump in basement direct to emergency generator from main bldg roof. replace fire pump controller with new fire pump controller with ats. install new breaker in emergency generator & fire pump conduits protected by 2 hr rated vitalink cable to new fire | Roofing | $223,000 | — | issued | 202307252879 |
| Jan 11, 2023 | otc alterations permit: replacing existing hvac chiller with new chiller on roof. new chiller is lighter than existing. we will be rigging chiller in with a crane on sacramento street near corner or mason) unit 0 | Heating and cooling | $776,214 | — | Finaled Aug 28, 2023 | 202210144353 |
| Sep 27, 2017 | otc alterations permit: level m- as built submittal for pa#201702018394, revise to reflect duct detection as supervisory. t.i. pa#201511051836. n/a ordinance #155-13 unit 0 | Heating and cooling | $1 | — | Finaled Oct 20, 2017 | 201709279702 |
| Jul 27, 2017 | otc alterations permit: rev to pa#201601157237: fire alarm as-builts to relocate duct dtectors in new location as show. remove duct detectors as shown. change duct detectors to supervisory condition instead of alarm | Heating and cooling | $1 | — | issued | 201707273073 |
| Feb 1, 2017 | otc alterations permit: level m: fire alarm t.i. : 1 booster panel. 1 pull box, 9 smokes, 4 duct smokes with relay, 1 signal module, 7 strobes, 8 speaker/strobes, 14 speakers. t.i. 201511051836 unit 0 | Heating and cooling | $27,333 | — | Finaled Oct 20, 2017 | 201702018394 |
| Jan 26, 2017 | otc alterations permit: active sports club vrf hvac improvements, remove and replace equipment & duct work in mech. area.install new outdoor heat pump. disconnect and reconnect nw equipment in mech area. providie air balance & install nw fan coils & e.f. maher not req | Heating and cooling | $750,000 | — | issued | 201612285991 |
| Sep 28, 2016 | additions alterations or repairs: level m: new 14 guestrooms within an existing hotel work to include new partitions mechanical, electrical, new fixtures, finishes and equipment. no exterior work, fire alarm and sprinkler under separate permit; maher n/a unit 0 | Electrical | $1,475,000 | — | Finaled Feb 28, 2018 | 201511051836 |
| Jan 15, 2016 | otc alterations permit: replace existing cpu card & display unit with new. provide new transpnder panel in the main lobby. remove and replace 39 duct detectors with new. provide new monitor modules for suppression system. maher na unit 0 | Heating and cooling | $58,500 | — | issued | 201601157237 |
On Mason St
146 permits on record on Mason St.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 74 | 10 | $17,950 | $6,300–$45,510 | Aug 17, 2026 |
| Plumbing | 30 | 6 | $46,010 | $5,000–$82,500 | Mar 16, 2026 |
| Electrical | 21 | 3 | — | under 5 | Jun 10, 2026 |
| Heating and cooling | 14 | 1 | — | under 5 | Sep 4, 2025 |
| Solar | 4 | 1 | — | under 5 | Feb 12, 2025 |
| Water heater | 3 | 0 | — | under 5 | Mar 6, 2024 |
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.