687 20th Ave, San Francisco
2 home-service permits on record at 687 20th Ave, San Francisco; the roof was last permitted on Nov 18, 2020 at a declared value of $50,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Nov 18, 2020 | additions alterations or repairs: construction of roof deck and stairs from the house to the roof | Roofing | $50,000 | — | Finaled Apr 27, 2021 | 201907226506 |
| Oct 3, 2017 | otc alterations permit: comply with physical inspection report cc-8141.remove sunroom enclosure at unit 685 deck.install 42in high wood guardrail facing rear yard. repair property line wall at deck.install new electrical panel to serve common areas. replace small fuse panel in 687 | Electrical | $5,000 | — | Finaled Dec 4, 2017 | 201709077248 |
On 20th Ave
424 permits on record on 20th Ave.
| Trade | Permits | Since Oct 4, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 202 | 33 | $15,000 | $9,200–$39,407 | May 26, 2026 |
| Electrical | 90 | 4 | — | under 5 | Sep 12, 2025 |
| Plumbing | 61 | 10 | $70,500 | $1–$212,500 | Jun 30, 2026 |
| Heating and cooling | 54 | 6 | $50,000 | $12,409–$253,500 | Sep 14, 2026 |
| Water heater | 16 | 1 | — | under 5 | Oct 14, 2025 |
| Solar | 1 | 1 | — | under 5 | Aug 11, 2026 |
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. 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 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. 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 4, 2026. Owner names are not shown on any page.