538 18th Ave, San Francisco
3 home-service permits on record at 538 18th Ave, San Francisco; the roof was last permitted on Aug 27, 2021 at a declared value of $18,500.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Aug 26, 2026 | otc alterations permit: lower unit -8 to 10 openings @ 20sf. exploratory demolition only. remove limited interior drywall and ceiling finishes to expose framing, plumging and electrical for evaluation. no structural demolition no new construction | Electrical | $500 | — | issued | 202608267181 |
| Feb 6, 2025 | otc alterations permit: comply with nov# 202432376 item #2: to repair and upgrade per listed items in kind . stair repair is less than 50% . electrical and plumbing permits applied separately for nov listed respective scopes | Plumbing | $5,000 | — | Finaled Apr 28, 2025 | 202501319504 |
| Aug 27, 2021 | ReRoof: reroofing | Roofing | $18,500 | — | issued | 202108277261 |
On 18th Ave
264 permits on record on 18th Ave.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 196 | 34 | $16,190 | $8,000–$28,689 | Sep 16, 2026 |
| Electrical | 25 | 9 | $44,000 | $400–$154,000 | Aug 26, 2026 |
| Plumbing | 22 | 5 | $28,192 | $11,000–$49,857 | Jul 15, 2026 |
| Heating and cooling | 11 | 3 | — | under 5 | May 4, 2026 |
| Water heater | 7 | 0 | — | under 5 | Nov 28, 2022 |
| Solar | 3 | 1 | — | under 5 | Mar 16, 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. This address is in that cohort. 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. This address is in that cohort. 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.