3700 20th St, San Francisco
6 home-service permits on record at 3700 20th St, San Francisco; the roof was last permitted on Feb 27, 2026 at a declared value of $35,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Feb 27, 2026 | ReRoof: tear off, install bitumen by torch down | Roofing | $35,000 | — | Finaled Mar 18, 2026 | 202602276644 |
| Jul 10, 2019 | otc alterations permit: unit 30: kitchen (10'x10') remodel, electrical/plumbing/cabinets/countertops/appliances; bathroom (10'x8') remodel, electrical/plumbing/cabinets/tiles. no structural work | Plumbing | $38,802 | — | Finaled Aug 7, 2019 | 201907105476 |
| Apr 2, 2019 | otc alterations permit: unit 31: 8x8 kitchen remodeling with new cabinets, countertops, appliances, electrical and plumbing upgrade/no structural work 6x6 bathroom remodeling with new tiles, toilet, vanity, plumbing work and electrical work upgrade | Plumbing | $30,944 | — | Finaled May 9, 2019 | 201904026928 |
| Jun 24, 2016 | otc alterations permit: electrical upgrade during and after soft sotry work, new garage wiring for openers, exit, emergency and regular led lights, new outlets and new panel for garage, storage and laiundry. no building. only electrical work | Electrical | $15,000 | — | issued | 201606240891 |
| Dec 8, 2015 | otc alterations permit: unit #19. kitchen remodeling-no structural work, electrical and plumbing upgrade, new cabinets, counter tops, appliances, led light fixtures. bathroom upgrade-no demolition, replace toilet w/1.28 gallon. new vanity, tile over walls, no eelctrical work, no rough plumbing | Plumbing | $27,500 | — | Finaled Feb 22, 2016 | 201512084449 |
| Jul 23, 2015 | otc alterations permit: unit #35: kitchen remodel: new cabinets, counter top, appliances, electrical, plumbin, title 24, lights. no structural work or removing walls. infield-close one kitchen door and window | Plumbing | $17,500 | — | Finaled Aug 21, 2015 | 201507232243 |
On 20th St
230 permits on record on 20th St.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 127 | 29 | $20,000 | $7,452–$43,880 | Sep 8, 2026 |
| Plumbing | 38 | 2 | — | under 5 | Aug 13, 2026 |
| Electrical | 29 | 5 | $20,000 | $7,800–$49,380 | Sep 4, 2026 |
| Heating and cooling | 20 | 2 | — | under 5 | Jan 7, 2026 |
| Solar | 8 | 5 | $32,176 | $13,027–$48,594 | Jul 6, 2026 |
| Water heater | 8 | 3 | — | under 5 | Jun 8, 2026 |
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.