1657 Mason St, San Francisco
1 home-service permit on record at 1657 Mason 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 |
|---|---|---|---|---|---|---|
| Oct 18, 2022 | otc alterations permit: interior non-bearing alterations to an existing 2-unit dwelling. work includes complete electrical, finishes, fixtures, hvac, proposed roof deck and safety railings at the roof. including structural improvements. no work to exterior, no additional units. no increase in height | Heating and cooling | $350,000 | — | issued | 202209273201 |
On Mason St
146 permits on record on Mason St.
| Trade | Permits | Since Oct 3, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 74 | 10 | $17,950 | $6,300–$45,510 | Aug 17, 2026 |
| Plumbing | 30 | 6 | $46,010 | $5,000–$82,500 | Mar 16, 2026 |
| Electrical | 21 | 3 | — | under 5 | Jun 10, 2026 |
| Heating and cooling | 14 | 1 | — | under 5 | Sep 4, 2025 |
| Solar | 4 | 1 | — | under 5 | Feb 12, 2025 |
| Water heater | 3 | 0 | — | under 5 | Mar 6, 2024 |
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. This address is in that cohort. 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. 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 3, 2026. Owner names are not shown on any page.