3345 18th St, San Francisco
3 home-service permits on record at 3345 18th 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 |
|---|---|---|---|---|---|---|
| Aug 23, 2017 | otc alterations permit: upgrade fire suppression system for an 9' hood & duct for ul 300 compliances. n/a ordinance #155-13 | Heating and cooling | $5,000 | — | issued | 201708225598 |
| Aug 9, 2017 | otc alterations permit: replace electrical in restaurant and laundrymat. ref. to app#201705176835 | Electrical | $75,000 | — | Finaled Sep 5, 2017 | 201708084188 |
| Jul 6, 2017 | otc alterations permit: revision to 201705176835. reswing door in basement stairwell from lobby, reconfigure storefront entry into laundromat, remove doors in front of electrical closet | Electrical | $2,500 | — | Finaled Sep 1, 2017 | 201707051038 |
On 18th St
230 permits on record on 18th St.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 125 | 23 | $16,700 | $12,270–$65,000 | Sep 22, 2026 |
| Electrical | 35 | 2 | — | under 5 | Jul 20, 2026 |
| Heating and cooling | 33 | 2 | — | under 5 | Jul 30, 2026 |
| Plumbing | 30 | 2 | — | under 5 | Jun 9, 2026 |
| Water heater | 6 | 0 | — | under 5 | Feb 2, 2022 |
| Solar | 1 | 0 | — | under 5 | Oct 16, 2017 |
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.