100 San Marcos Ave, San Francisco
4 home-service permits on record at 100 San Marcos Ave, San Francisco; the roof was last permitted on Jan 5, 2026 at a declared value of $4,500.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Jan 5, 2026 | ReRoof: demo and replace 450 sq ft detached garage roof, torch down. reference to #202112144437 and #202510238012 | Roofing | $4,500 | — | issued | 202512242614 |
| Oct 27, 2025 | otc alterations permit: whole house remodel including 1 bath on floor 1, 2 baths, on floor 2. remodel kitchen including lights, outlets, switches, plumbing. replace front windows with custom wood windows while preserving or replicateing trim of slightlly larger size. ref 202112144437. walls demoed and added | Plumbing | $161,790 | — | issued | 202510238012 |
| May 9, 2024 | ReRoof: reroofing | Roofing | $9,800 | — | issued | 202405091788 |
| Jan 11, 2022 | otc alterations permit: comply with housing violation 2021840625: removal of interior walls to excessive water damage from roof leak to electrical and plaster/walls. repair and restore all finishes. no wall alterations | Roofing | $300,000 | — | issued | 202112144437 |
On San Marcos Ave
25 permits on record on San Marcos Ave.
| Trade | Permits | Since Oct 6, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 22 | 6 | $11,050 | $2,625–$24,500 | Jan 5, 2026 |
| Plumbing | 3 | 1 | — | under 5 | Oct 27, 2025 |
Roof replacement cost in San Francisco
Across 5,872 one- and two-family reroof permits since October 6, 2024, most declared values run from $7,655 to $32,000 (the middle 80%); the median is $15,000 and half fall between $10,800 and $21,792. 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 293 one- and two-family heating and cooling permits since October 6, 2024, most declared values run from $21 to $223,693 (the middle 80%); the median is $25,996 and half fall between $5,000 and $120,000. 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 6, 2026. Owner names are not shown on any page.