Healthy Building Science Inc

Contractor license: 1046058; State license record
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.

CompletedIn progressNever finaledExpired or cancelled

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

Median days to final inspection, citywideMedian days to permit issued, citywide

Each point is the quarter the permits were filed, for roof deck 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.

Roof deck permits

All Roof deck 2 Bathroom remodel 1

2 roof deck permits: 2 in progress. Typically 2 days from filing to permit.

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+ leaders Details Permit 202608287392 Status issued Filed Aug 28, 2026 Permit issued Aug 28, 2026 Declared cost $223,969 Address 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+ leaders Open the permit page	$223,969
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 Permit 202606042578 Status issued Filed Jun 4, 2026 Permit issued Jun 8, 2026 Declared cost $25,000 Address 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. Open the permit page	$25,000