450 Hayes St, San Francisco
5 home-service permits on record at 450 Hayes St, San Francisco; the roof was last permitted on Oct 1, 2025 at a declared value of $1,500,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Oct 1, 2025 | otc alterations permit: repair bldg conditions related to moisture intrusion. repiars to walls, balcony, staircsae, landings, roof & interior finishes. structural repairs will be indentified as removal of finish material occurs. no addition or reconfigurations. all demo material replace in kind. mep fixtures if necessary | Roofing | $1,500,000 | — | Finaled Sep 1, 2026 | 202506188995 |
| Dec 6, 2021 | sign - erect: intall a non-electric sign channel letter | Electrical | $2,303 | — | Finaled Dec 27, 2021 | 202112063757 |
| Nov 30, 2016 | sign - erect: install single faced electric wall sign. n/a maher ordinance | Electrical | $1,200 | — | issued | 201610271236 |
| Nov 21, 2016 | otc alterations permit: space #1 - first time tenant improvement of an shell space to accommodate a new ground floor retail space & accessible restroom. electrical, plumbing & lighting & life safety work performed under separat permit. no demolitoin, no exterior work. ref #201306260573 | Plumbing | $60,767 | — | Finaled Feb 3, 2017 | 201610059630 |
| Feb 12, 2016 | otc alterations permit: revision to 2013-0626-0573s3, relocation of rated wall in basement mechanical plumbing room, equipment. maher na | Plumbing | $1,000 | — | issued | 201602129499 |
On Hayes St
197 permits on record on Hayes St.
| Trade | Permits | Since Oct 4, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 90 | 14 | $22,200 | $8,150–$94,600 | May 14, 2026 |
| Plumbing | 45 | 4 | — | under 5 | Apr 10, 2026 |
| Electrical | 39 | 1 | — | under 5 | Apr 23, 2026 |
| Heating and cooling | 14 | 0 | — | under 5 | Dec 6, 2023 |
| Water heater | 7 | 2 | — | under 5 | Aug 26, 2025 |
| Solar | 2 | 0 | — | under 5 | Mar 1, 2018 |
Roof replacement cost in San Francisco
Across 5,889 one- and two-family reroof permits since October 4, 2024, most declared values run from $7,650 to $32,000 (the middle 80%); the median is $15,000 and half fall between $10,800 and $21,760. 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 291 one- and two-family heating and cooling permits since October 4, 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. 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 4, 2026. Owner names are not shown on any page.