San Francisco · Townsend St
600 Townsend St, San Francisco
25 home-service permits on record at 600 Townsend St, San Francisco; the roof was last permitted on Jun 2, 2016 at a declared value of $400,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Sep 30, 2026 | otc alterations permit: modify hvac ductwork for new layout. add electrical outlets. modify lighting. ref pa# 202605070870 | Heating and cooling | $40,000 | — | issued | 202609298779 |
| Jul 16, 2026 | otc alterations permit: scope of work includes restripe of existing violations to meet accessibility compliance under 2025 cbc 11b. minimal non structural storage reconfiguration to allow room for proper accessible parking stalls and aisles. no electrical or plumbing is expected in the scope | Plumbing | $30,000 | — | issued | 202604219819 |
| Dec 17, 2025 | otc alterations permit: 1/f suite 150: electrical and hvac into 2 new offices. ref t.i permit 202512040996 | Heating and cooling | $40,000 | — | Finaled Feb 11, 2026 | 202512172062 |
| Dec 10, 2025 | otc alterations permit: mechanical and electrical work for ti on 2nd fl ref pa 202507221305/202510298361 | Electrical | $75,000 | — | Finaled Apr 7, 2026 | 202511199939 |
| Jul 24, 2024 | otc alterations permit: 1st/f lobby t.i.: demo of non-structural partitions, ceilings, light fixtures, millwork & finishes. new construction of non-structural partitions, lighting, electrical & mech & finishes | Electrical | $650,000 | — | Finaled Mar 10, 2025 | 202407116288 |
| Nov 18, 2022 | otc alterations permit: revision to 202209071974 provide accessible door push botton,door operator at ments restroom door in lieu of modificaion of plumbing lines, water closets/toilet partition due to infeasibility of plumbing line modification. modify e private office config,no change area/ftprint.due to no shower avail | Plumbing | $40,000 | — | Finaled Dec 5, 2022 | 202211156576 |
| Jan 18, 2019 | otc alterations permit: ref pa# 201811014785; as built for lobby scope-addition booster supply w/sync modul, add smokes, ceiling hornstrobes strobes, add new duct detctors, new control relays | Heating and cooling | $10,000 | — | Finaled Apr 2, 2019 | 201901180777 |
| Aug 14, 2018 | otc alterations permit: minor ductwork demolition. furnish and install 4 water sorce heat pumps. new ductwork and diffusers, controls and balancing. ref app#201804186646 | Heating and cooling | $122,400 | — | issued | 201808066551 |
| Aug 9, 2018 | otc alterations permit: suite 150: add 2 ceiling horn strobes, add 1 new duct det. add 1 new high volt vontrol relay for fan shutdown, maher n/a | Heating and cooling | $3,378 | — | Finaled Aug 17, 2018 | 201808096868 |
| Jul 26, 2018 | otc alterations permit: install water source heat pump to serce remodeled tenant improvement spaces ref pa 2018-0629-3356 | Heating and cooling | $27,000 | — | issued | 201807255517 |
| Jul 10, 2018 | otc alterations permit: tenant improvement: new non-structural partitions, glazing doors/frames, hardware, ceiling system & light fixtures and electrical. fire life safety, mep under separate permit. all electrical & lighting shall comply with title 24 | Electrical | $90,000 | — | Finaled Aug 10, 2018 | 201806293356 |
| Oct 31, 2017 | otc alterations permit: 1st fl fa: new ceiling hornstrobes, new duct detectors w. new control relays high amp, 1 control relay, demo 3 smokes, 2 door holders & 1 relay. ref pa #201709067028 maher na | Heating and cooling | $8,000 | — | Finaled Jan 19, 2018 | 201710312762 |
| Jun 30, 2017 | otc alterations permit: emergency lighting in common areas, garage, stairways throughout the building. lighting above the proposed elevator lift-electrical utility for elevator lift | Electrical | $30,000 | — | issued | 201706290656 |
| Jun 9, 2017 | otc alterations permit: 1st fl: additional scope added under record set as builts: add two control relays for two fsd's . add one new duct detector & one new pendant smoke to monitor new fsd's. ref. building t.i. #2017-0321-1969 and fire alarm #2017-0411-3691. maher na | Heating and cooling | $3,000 | — | Finaled Jun 14, 2017 | 201706098877 |
| Oct 31, 2016 | otc alterations permit: 24 new duct detectors for new fan coil units; 9 new notification devices; 1 new smoke detector. mech. 2016.1006.9647/ arch. 2016.0921.8399/2016.0830.6410 maher ord 155-13 not required | Heating and cooling | $24,000 | — | Finaled Dec 5, 2016 | 201610311484 |
| Oct 28, 2016 | additions alterations or repairs: demo & removal w/minor steel bracing of steel deck. replacement of hvac units with overall reduction in platform height. maher na | Heating and cooling | $75,000 | — | issued | 201608185317 |
| Oct 6, 2016 | otc alterations permit: mechanical and electrical work for ti ref pa 2016-0921-8399 and 2016-0830-6410. maher na. install 21 new heatpumps | Heating and cooling | $350,000 | — | Finaled Mar 23, 2017 | 201610069647 |
| Aug 10, 2016 | otc alterations permit: 4th floor: mewchanical and electrical work for ti. ref pa 201606270918 | Electrical | $85,000 | — | issued | 201608084444 |
| Aug 2, 2016 | otc alterations permit: as-built - reflects approved matrix change from alarm to supervisory for all associated duct detectors & fsd smokes for all the floors. n/a maher ordinance | Heating and cooling | $1 | — | Finaled Aug 30, 2016 | 201608023964 |
| Jul 5, 2016 | otc alterations permit: add 7 control relays, 22 new duct smoke detectors and 5 new interposing relays for fsd control and shutdown & 10 pendent smoke detectors for fsd shutdown. n/a for maher. ref. 201605167485 | Heating and cooling | $40,000 | — | Finaled Aug 9, 2016 | 201606301339 |
| Jun 2, 2016 | otc alterations permit: new roof top equipment replace. 15 new fire rated damper through extg 2 hour fire rated shaft from 1st floor through 5th floor. n/a for maher. fire alarm deferred | Roofing | $400,000 | — | Finaled Aug 19, 2016 | 201605167485 |
| Mar 14, 2016 | otc alterations permit: add new wall mount horn/strobes, add new wall mount strobe, add new control relays, new duct smoke detectors, new interposing relays. ref pa 2016-0204-8830 maher na | Heating and cooling | $13,000 | — | issued | 201603091577 |
| Mar 10, 2016 | otc alterations permit: mechanical and electrical work for tenant improvement. ref pa 2016-0104-6283. maher na | Electrical | $25,000 | — | Finaled Nov 22, 2016 | 201603010840 |
| Feb 5, 2016 | otc alterations permit: new duct detector, new constrol relay. 2nd floor install new 9000 cfm capacity osa in line fan to serve future 2nd floor tenant per t-24. provide 7.5 hp vfd for future capacity control. connect new fan into extg osa risers to 3rd floor. exterior intake louvers. cap old relief duct system | Heating and cooling | $5,000 | — | Finaled Mar 1, 2016 | 201602048830 |
| Jun 8, 2015 | otc alterations permit: 3rd floor - mechanical & electrical work in existing mdf room. adding two movin cool units into existing room & fire rate penetrations thru rated wall. n/a maher ordinance | Electrical | $100,000 | — | issued | 201505216867 |
On Townsend St
208 permits on record on Townsend St.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 29 | 2 | — | under 5 | Jan 29, 2026 |
| Heating and cooling | 88 | 4 | — | under 5 | Sep 30, 2026 |
| Electrical | 63 | 5 | $75,000 | $6,200–$204,605 | Jun 25, 2026 |
| Plumbing | 27 | 3 | — | under 5 | Sep 30, 2026 |
| Solar | 1 | 0 | — | under 5 | Apr 1, 2019 |
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.