2140 Lake St, San Francisco
3 home-service permits on record at 2140 Lake 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 |
|---|---|---|---|---|---|---|
| Jul 28, 2026 | additions alterations or repairs: convert 848 sf to adu: 1bed/1bth, replace windows in-kind,enlarge bedroom windows, kitchen remodel, remodel bath, add 2nd bath & laundry. add subpanel, plumbing,hvac. 202510227916 under sep permit for work on levels 2 & 3 | Heating and cooling | $250,000 | — | issued | 202512081166 |
| Feb 24, 2026 | otc alterations permit: amend to 202510227916: renovate 1/f: remodel 1 bedroom & 1 bathroom - plumb/elect. enlarge closet; add new heating in attic | Plumbing | $40,000 | — | issued | 202602236343 |
| Oct 22, 2025 | otc alterations permit: 2nd level: kitchen remodel with light electric, 3rd level: 2 baths remodel, and add closets to bedrooms 1 and 2 | Electrical | $100,000 | — | issued | 202510227916 |
On Lake St
195 permits on record on Lake St.
| Trade | Permits | Since Oct 3, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 136 | 21 | $21,800 | $7,200–$57,300 | Sep 17, 2026 |
| Plumbing | 30 | 6 | $67,500 | $37,700–$153,500 | Jul 28, 2026 |
| Electrical | 20 | 3 | — | under 5 | May 19, 2026 |
| Heating and cooling | 6 | 2 | — | under 5 | Jul 28, 2026 |
| Solar | 2 | 2 | — | under 5 | May 27, 2026 |
| Water heater | 1 | 0 | — | under 5 | Sep 28, 2016 |
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. 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 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. 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 3, 2026. Owner names are not shown on any page.