Healthy Building Science Inc
- Based in
- San Rafael
- On San Francisco permits
- Jul 2022 to Aug 2026
- Last 24 months
- 6 permits filed
7 permits since 2000: 1 completed, 6 in progress.
This is the city’s permit record, not a license check. It does not show whether the state license is active, bonded or insured. How to read these records
Permits filed each year
How long permits take
Each point is the quarter the permits were filed, for all building permits across San Francisco. A median counts only permits that have finished, so the shaded recent quarters look faster than they will end up: their slow permits have not finished yet. Hover a point for the slowest 10%. Gaps mean fewer than 5 permits. A rise in the issue line is the city’s review backlog, not the contractor. Too few of this contractor’s permits have finished to plot them.
Most recent permits
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Aug 28, 2026 | In progress issued Aug 2026 | 2277 33rd Av | revision to pa #202606042578: demo lower roof & sheating +replaced w/sheathing, cover board+membrane roof. the roof deck will be rebuilt over sleepers parapet walls that act as guardrails on the north+south sides of the deck. metal guardrails added on east+west sides of deck. roof guards+ leadersDetails
revision to pa #202606042578: demo lower roof & sheating +replaced w/sheathing, cover board+membrane roof. the roof deck will be rebuilt over sleepers parapet walls that act as guardrails on the north+south sides of the deck. metal guardrails added on east+west sides of deck. roof guards+ leaders | $223,969 |
| Jul 23, 2026 | In progress issued Jul 2026 | 1347 40th Av | bathroom remodel in kind. no change to floor layout. no change to wall layout. no structural work.Details
bathroom remodel in kind. no change to floor layout. no change to wall layout. no structural work. | $25,000 |
| Jul 23, 2026 | In progress issued Jul 2026 | 1347 40th Av | revision to #202603167679. material change to wall assembly located in exterior breezeway. replace gympsum with lp fireblock osb to provide fire protection for exterior application.Details
revision to #202603167679. material change to wall assembly located in exterior breezeway. replace gympsum with lp fireblock osb to provide fire protection for exterior application. | |
| Jun 4, 2026 | In progress issued Jun 2026 | 2277 33rd Av | demolition and reconstruction of (e) roof deck. (e) metal guardrail to be refurbished and re-utilized. add gutter + rain leaders connected to sewer line.Details
demolition and reconstruction of (e) roof deck. (e) metal guardrail to be refurbished and re-utilized. add gutter + rain leaders connected to sewer line. | $25,000 |
| Apr 14, 2026 | In progress issued May 2026 | 1347 40th Av | convert existing conditioned space on street level to adu.Details
convert existing conditioned space on street level to adu. | $185,000 |
| Dec 18, 2025 | In progress issued Dec 2025 | 2277 33rd Av | replacement of install furnace. remove & replace air supply + intake grills, seal all boots to ducting - replace partial crushed duct. install new plenum + air filter bexDetails
replacement of install furnace. remove & replace air supply + intake grills, seal all boots to ducting - replace partial crushed duct. install new plenum + air filter bex | $14,205 |
| Jul 1, 2022 | Completed final sign-off Jul 2022 | 1539 Sanchez St | sidind and trim replacement of north and east facade (backyard). prime and paint not visible from street. entire wall at north and east. replace/repair in kind.Details
sidind and trim replacement of north and east facade (backyard). prime and paint not visible from street. entire wall at north and east. replace/repair in kind. | $60,000 |