486 Duncan St, San Francisco
4 home-service permits on record at 486 Duncan St, San Francisco; the roof was last permitted on May 20, 2022 at a declared value of $48,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| May 20, 2022 | otc alterations permit: rebuild 194 sq ft. office/den on 2nd fl. of residence, replace inverted butterfly roof with shed roof on rear 2 story portion of residence, 94 sq ft. roof deck over shed roof, rebuild wood landing and stairs from 2nd fl. to rear yard, wood landing/stairs from 1st fl | Roofing | $48,000 | — | Finaled Oct 24, 2022 | 202106293457 |
| Sep 24, 2020 | additions alterations or repairs: new 185 sq. ft. roof deck over existing flat roof | Roofing | $8,000 | — | cancelled | 201910235399 |
| Sep 26, 2019 | otc alterations permit: remodel interior of residence. convert 488sq ft of garage to habitable space. 174sq ft addition underneath sunroom on ground floor. add 203 aq ft of dormors to roof convert 19sq ft of attic to habitable area. new plumbing and in residence | Roofing | $250,000 | — | issued | 201908290213 |
| Jun 17, 2019 | otc alterations permit: 2 bathroom remodeling, like for like same location no structural changes and no exterior work. new led recessed lights and plumbing fixtures | Plumbing | $32,000 | — | Finaled Dec 2, 2020 | 201906173562 |
On Duncan St
130 permits on record on Duncan St.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 97 | 16 | $15,875 | $7,250–$61,600 | Jul 23, 2026 |
| Plumbing | 21 | 4 | — | under 5 | Jul 16, 2026 |
| Electrical | 5 | 0 | — | under 5 | Jun 29, 2021 |
| Heating and cooling | 4 | 0 | — | under 5 | May 9, 2018 |
| Water heater | 2 | 0 | — | under 5 | Aug 15, 2024 |
| Solar | 1 | 1 | — | under 5 | Feb 13, 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.