420 23rd St, San Francisco
3 home-service permits on record at 420 23rd 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 |
|---|---|---|---|---|---|---|
| Sep 5, 2023 | otc alterations permit: mayoral ed-17-02: removal of interior flum gas exhaust duct, typically referred to as chimney liver, & water tank structure inside of chimney. all nonstructural demo | Heating and cooling | $180,000 | — | Finaled Feb 16, 2024 | 202306270985 |
| Jun 12, 2023 | otc alterations permit: unit 3 bldg - mayoral ed 17-02. removal steel boiler unit, and all associated non-structral equipment. a condenser unit, three intake pumps cooking water heat exchanger per ab-017 | Heating and cooling | $600,000 | — | Finaled May 28, 2024 | 202305057239 |
| Dec 18, 2020 | demolitions: bldg# 15-to demolish a type 3, 1-story office/electric shop bldg | Electrical | $5,500 | — | Finaled Feb 14, 2022 | 202007200490 |
On 23rd St
200 permits on record on 23rd St.
| Trade | Permits | Since Oct 3, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 124 | 25 | $15,000 | $6,363–$35,300 | Jul 28, 2026 |
| Plumbing | 32 | 7 | $47,583 | $11,540–$102,800 | Sep 21, 2026 |
| Electrical | 17 | 2 | — | under 5 | Jun 10, 2025 |
| Heating and cooling | 16 | 3 | — | under 5 | Sep 2, 2026 |
| Water heater | 7 | 1 | — | under 5 | Apr 27, 2026 |
| Solar | 4 | 4 | — | under 5 | Jul 9, 2026 |
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. 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. 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.