San Francisco · Clay St
300 Clay St, San Francisco
51 home-service permits on record at 300 Clay St, San Francisco; the roof was last permitted on Jun 6, 2022 at a declared value of $24,734.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Jul 14, 2025 | otc alterations permit: fire alarm ti, adding 1 smoke det, 1 duct detector, e relay modules, 1 speakerand 22 speaker-strobes to existing notifier nfs2-3030 fire alarm system. ref 202501279164 | Heating and cooling | $27,132 | — | issued | 202504235077 |
| Jun 16, 2025 | otc alterations permit: add overhead electric heaters in an existing outdoor dining area for an existing restaurant | Electrical | $36,789 | — | Finaled Jan 7, 2026 | 202506168732 |
| Dec 23, 2024 | otc alterations permit: fire alarm ti: adding dual monitor relay module, relay modules and duct detectors to existing notifier nfs2-3030 fire alarm sysem unit 0 | Heating and cooling | $13,690 | — | issued | 202412207226 |
| Oct 21, 2024 | otc alterations permit: ground fl - replace mechanical system serving the plaza level tenant space, bar sprezzatura. relocate heat pumps to permanent locations on ground fl; connect plaza level return to the heat pump units. unit not in the restaurant unit 0 | Heating and cooling | $352,749 | — | Finaled Jul 18, 2025 | 202409241446 |
| Aug 13, 2024 | otc alterations permit: deferred electrical for pa# 2023-1211-2251; for lights and equipment unit 0 | Electrical | $2,500 | — | Finaled Aug 29, 2024 | 202408138533 |
| Jul 3, 2024 | otc alterations permit: 17th & 18th fl electrical only permit to support approved architectural permit. pa# 2024-0125-4620 connect power to new or relocated light fixtures. power outlets and tenant equipment unit 0 | Electrical | $374,000 | — | Finaled Aug 11, 2025 | 202407035794 |
| Jun 13, 2022 | otc alterations permit: fiire alarm t.i.: adding 1 sprinkler, 10 speaker strobes, 6 relay modules, 2 duct detectors, and 13 smoke detectors to existing notifier nfs2-3030 fire alarm system. ref pa# 202111122237 | Heating and cooling | $15,980 | — | Finaled Nov 15, 2022 | 202206136158 |
| Jun 6, 2022 | otc alterations permit: g/f & 26/f - roof: install variable frequency drives on supply fans. no other modifications to the buildings 9e) mechanical system are included. maher n/a unit 0 | Roofing | $24,734 | — | Finaled Jan 24, 2023 | 202206065643 |
| Mar 4, 2022 | otc alterations permit: 22/f: two small confference rooms and new door at partition. mech, elec, plumbing, life safety and fire sprinklers under sep permits. maher n/a unit 0 | Plumbing | $325,000 | — | Finaled Aug 19, 2022 | 202202178202 |
| Feb 18, 2022 | otc alterations permit: this is an renovation project of the basement, ground, loading dock & plaza level at 300 clay st. demolition of walls, ceilings, finishes, mechanical, electrical & plumbing equipment. construction of restrooms & kitchens, locker rooms, office & dry storage, storage & cooler unit 0 | Plumbing | $2,682,163 | — | Finaled Jan 26, 2023 | 202111122237 |
| May 28, 2021 | otc alterations permit: 20th floor - new lighting, branch, circuiting, electrical new power and signal outlets. title 24 ref pa 2020-1211-0883 | Electrical | $15,000 | — | issued | 202105281295 |
| May 25, 2021 | otc alterations permit: 13th, 14th flrs: revision to pa 201912230299. revised floor 13 and minor changes on floor 14. removal and addition of non structural partitions, modifying sink plumbing and millwork locations | Plumbing | $90,000 | — | Finaled Aug 3, 2021 | 202104138437 |
| May 17, 2021 | otc alterations permit: 12/f: revision to permit 201912230299. removal and addition of non-structural partitions, modifying plumbing and millwork | Plumbing | $97,000 | — | Finaled Aug 2, 2021 | 202104078035 |
| May 14, 2021 | otc alterations permit: 10th, 11th flrs: revision to permit 201912230299. revised floor 11 and minor changes to floor 10. removal and addition of non-load bearing partitions, modifying plumbing and millwork | Plumbing | $120,000 | — | Finaled Aug 4, 2021 | 202104078029 |
| Feb 9, 2021 | additions alterations or repairs: tenant improvement project involves modification of 10th-16th floor and expansion of existing tenant suites to includes construction of non-load bearing partitions, new ceiling and light fixtures, new electrical, new office doors and frams, new millwork and finishes.**maher n/a** unit 0 | Electrical | $20,000,000 | — | Finaled Mar 3, 2023 | 201912230299 |
| Dec 26, 2019 | otc alterations permit: 2nd fl - new non-load beraing partitions, new ceilings and light fixtures, new electrical, new office doors and frames, new millwork and finishes. structural calcs and drawings included unit 0 | Electrical | $1,400,000 | — | Finaled Nov 19, 2021 | 201911217868 |
| Dec 20, 2019 | otc alterations permit: 3rd & 4th: new non-load bearing partitions, ceilings, light fixtures, electrical, doors & frames, millwork & finishes. structural calcs for anchorage included unit 0 | Electrical | $2,000,000 | — | Finaled Nov 19, 2021 | 201911207806 |
| Oct 8, 2019 | otc alterations permit: fire alarm ti convert e duct to new cellular transmitter. e notifier nfs2-3030 fire alarm system unit 0 | Heating and cooling | $1 | — | issued | 201910083904 |
| Aug 16, 2019 | otc alterations permit: fire alarm t.i. adding 1 power supply, 16 speaker strobes, 14 speakers, 1 duct detector, smoke detector and to extg notifier nfs2-3030 fa system. ref app#201905160799 unit 0 | Heating and cooling | $10,764 | — | issued | 201908158965 |
| Jul 22, 2019 | otc alterations permit: 16th flr. electrical only. connecting power to light fixtures. connection to base panels. ref pa 201903084726 unit 0 | Electrical | $33,000 | — | Finaled Mar 16, 2020 | 201907196424 |
| Jul 22, 2019 | otc alterations permit: 6th flr. fire damper - demo duct and installation of new fire damper. ref pa 201905160799 | Heating and cooling | $1 | — | Finaled Jun 12, 2020 | 201907196420 |
| Jul 11, 2019 | otc alterations permit: 2/f & 3/f: demo duct. demo fire damper, install new fire dampers in new rated fire enclosures unit 0 | Heating and cooling | $134,500 | — | Finaled Oct 18, 2019 | 201905221352 |
| Apr 24, 2019 | otc alterations permit: 13th fl -fire smoke dampers & linear diffusers mechanical & electrical ref pa 2019-0109-9946 unit 0 | Electrical | $300,000 | — | Finaled Sep 29, 2021 | 201904228560 |
| Mar 13, 2019 | otc alterations permit: 16/f demo of e non-struct partitions, millwork, ceiling grid & tile, light fixtures, plumbing fixtures & finishes. constuct n accessible restrooms including n plumbing fixtures & finishes, demising wall & common areas. suits are to remain unoccupied @ completion of project. mep/fire under sep permit unit 0 | Plumbing | $252,844 | — | Finaled Mar 16, 2020 | 201903084726 |
| Feb 25, 2019 | otc alterations permit: mechanical demo existing sections of duct lock existing fire dampers open, install new fire dampers | Heating and cooling | $20,000 | — | Finaled Apr 27, 2020 | 201805048186 |
| Feb 25, 2019 | otc alterations permit: new fire dampers mechnical demo duct, lock existing fire damper. ref pa 2018-0102-7651 | Heating and cooling | $20,000 | — | Finaled Jul 20, 2020 | 201804277585 |
| Feb 13, 2019 | otc alterations permit: lobby - phase 1 of 2 upgrade to lobby - partition and door relocation, door replacement. floor, ceiling and wall finishes, lighting, signage, mech and electrical upgrades unit 0 | Electrical | $3,800,000 | — | Finaled Nov 15, 2021 | 201901140306 |
| Jan 28, 2019 | otc alterations permit: 4th fl: demo duct, demo fire damper, new fire damp | Heating and cooling | $103,200 | — | Finaled Jul 15, 2019 | 201901251223 |
| Jan 23, 2019 | otc alterations permit: 13th floor: demo of extg non-structural partitions, millwork, ceiling grid and tile, light fixtures and finishes. construction of new accessible restrooms, including new plumbing unit 0 | Plumbing | $65,000 | — | Finaled Oct 1, 2021 | 201901099946 |
| Dec 26, 2018 | otc alterations permit: basement: fire alarm ti to existing notifier nfs2-3030. adding 13 speaker/strobes, 3 duct detectors, 2 smoke detectors, and 1 control relay. ref pa #201810042342. maher n/a unit 0 | Heating and cooling | $11,723 | — | Finaled Apr 30, 2019 | 201812249095 |
| Nov 21, 2018 | otc alterations permit: ref pa# 201807205111; fire alarm t.i. to notifier nfs2-3030, adding 8 speakers strobes, 10 speakers, 1 duct detector with control relay | Heating and cooling | $12,978 | — | Finaled Dec 10, 2018 | 201811206359 |
| Nov 2, 2018 | otc alterations permit: tenant improvement on basement level , with mep. selective demolition of interior partitions, flooring and ceiling. construction of new interior partitions, flooring, ceiling, lighting, plumbing and mechanical | Plumbing | $1,373,211 | — | Finaled Oct 16, 2019 | 201810042342 |
| May 9, 2018 | otc alterations permit: existing 1750 sf space in the basement of a high rise office building is to be converted from storage to a corporate workout facility. work will include general fitness as well sa mech, elec., ams, and plumbing unit 0 | Plumbing | $1,200,000 | — | Finaled May 31, 2019 | 201805078353 |
| Apr 24, 2018 | otc alterations permit: 6th flr - ti to nfs2-3030 addining 21 speaker strobes, 3 speakers, 1 duct smk det ref 201801224147 maher na unit 0 | Heating and cooling | $17,321 | — | Finaled Jul 3, 2018 | 201804237127 |
| Apr 18, 2018 | otc alterations permit: 6th floor: ref to app#201801027651 for electrical. n/a for maher | Electrical | $1 | — | Finaled May 31, 2019 | 201804136307 |
| Jan 4, 2018 | otc alterations permit: 6th floor:130 changeout, 29 relocate, 18 remove. 7th floor:111 change, 43 relocate, 24 remove per t.i. to convert to base bldg. n/a for maher | Heating and cooling | $67,295 | — | Finaled Nov 10, 2021 | 201801047852 |
| Nov 27, 2017 | otc alterations permit: 3 fire dampers. demo sections of duct reference 201707192304 maher na unit 0 | Heating and cooling | $18,000 | — | Finaled Aug 27, 2020 | 201711224669 |
| Sep 29, 2017 | otc alterations permit: 14/f- mech & electrical work for pa#201707121615. mechanical- demo duct for new fsd, lock fsd, install new fsd. electrical- connect power to new or relocated light fixtures, power outlets & tenant equipment. n/a ordinance #155-13 unit 0 | Heating and cooling | $80,000 | — | expired | 201709158385 |
| Jun 19, 2017 | otc alterations permit: 14th fl: tenant improvement demolition and construction of mech, ele, plumbing. no structural to be performed. life safety deferred. ref 2017-0526-7759 | Plumbing | $329,000 | — | issued | 201706159480 |
| Feb 14, 2017 | otc alterations permit: 19/f- phase ii fire alarm work, 13 speaker strobes, 3 speakers, 1 strobe, 1 smoke detector and 1 duct smoke detector added to existing nfs2-3030 fire alarm panel. n/a ordinance #155-13. ref ti 2016-0523-8081 unit 0 | Heating and cooling | $11,000 | — | Finaled Apr 20, 2017 | 201702149393 |
| Dec 20, 2016 | otc alterations permit: 19/f- demo & renovate partial floor office tenant to combine into full floor single tenant occupancy, new partitions, suspended ceilings, lighting & architectural finishes. related modify hvac & electrical systems. no modify to base bldg structure or life safety systems. n/a ordinance #155-13 unit 0 | Heating and cooling | $749,000 | — | Finaled May 9, 2017 | 201611162835 |
| Nov 4, 2016 | otc alterations permit: ref 201605187736 & 201608094510 ref fire alarm permit 201608154968 as built revision to ap[proved drawing: added 1 addressable duct detector and 1 speaker.strobe. change clonned with delta "b" unit 0 | Heating and cooling | $500 | — | Finaled Mar 8, 2017 | 201611042037 |
| Sep 28, 2016 | otc alterations permit: 23rd floor: t.i. consisting of one room, 2 hallway doors and one door in i.t. room. mechanical, electrical, life safety, plmg and fire protection under seperate permit. n/a for maher | Electrical | $60,000 | — | Finaled Nov 17, 2016 | 201609218316 |
| Sep 7, 2016 | otc alterations permit: mechanical and electrical for 201601116726. fire sprinkler & life safety to be filed under separate permit. n/a maher ord. 155-13 | Electrical | $210,000 | — | issued | 201609066835 |
| Aug 9, 2016 | otc alterations permit: revision to 201605187736. eliminate fire rating at it room and electrical closet. maher not req | Electrical | $1 | — | Finaled Mar 27, 2017 | 201608094510 |
| Jun 8, 2016 | otc alterations permit: 19th floor: renovation of partial floor office tenant space including new partitions, suspended ceilings, lighting, arch finishes, limited plumbing. related modifications to hvac, elect systems. no modifications to base building structure, core or life safety systems unit 0 | Heating and cooling | $1,320,000 | — | Finaled Mar 16, 2017 | 201605238081 |
| May 12, 2016 | otc alterations permit: structural work scope: replace bmu rail beams and the installation of new supports along the east and west sides of roof. at north and south ends of roof the clamps connecting the existing rail to existing post will be replaced | Roofing | $350,000 | — | Finaled Jan 9, 2017 | 201605066855 |
| Jan 27, 2016 | otc alterations permit: interior non-structural demolition of partitions doors and ceiling. construct eight private offices. mechanical, electric, fire sprinkler and life safety under separate permit. maher na unit 0 | Electrical | $210,000 | — | Finaled Nov 8, 2016 | 201601116726 |
| Aug 18, 2015 | otc alterations permit: fire alarm add 1 power supply, 35 speaker/strobes, 8 speaklers, 1 strobe, 25 smoke detectors, 4 relays/modules, 1 duct detector due to ti on 9th fl ref 201505045265 unit 0 | Heating and cooling | $44,000 | — | Finaled Sep 11, 2015 | 201507292809 |
| Jul 15, 2015 | otc alterations permit: small amount of work is to be performed on the 11/f. the work consists of removing a wall and door, and construct a new wall and door. also, a large office will be divided into two private office with a new wall. electrical, mechanical, plumbing, sprinkler & fire/life safety will all be under a unit 0 | Plumbing | $50,000 | — | Finaled Sep 22, 2015 | 201507151533 |
| Feb 25, 2015 | otc alterations permit: 26th flr -construct interior wall w/ double doors, modify duct work to accomodate new supply fan, replace exhaust fan, replace (20 chillers w/ new liked kind chillers, modify piping connected to chillers, modify elect connections to chillers,install new refrigerant monitor system | Heating and cooling | $875,000 | — | Finaled Mar 2, 2016 | 201502188609 |
On Clay St
410 permits on record on Clay St.
| Trade | Permits | Since Oct 3, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 201 | 35 | $32,300 | $7,600–$87,920 | Sep 25, 2026 |
| Plumbing | 78 | 17 | $49,800 | $24,835–$77,000 | Sep 9, 2026 |
| Electrical | 66 | 10 | $41,895 | $2,800–$435,000 | Jul 2, 2026 |
| Heating and cooling | 59 | 8 | $28,566 | $1,400–$280,825 | Aug 25, 2026 |
| Water heater | 5 | 3 | — | under 5 | Aug 12, 2026 |
| Solar | 1 | 1 | — | under 5 | Sep 11, 2025 |
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.