Aidan Collins & Sons Inc

Contractor license: 375498; State license record
Based in: San Rafael
On San Francisco permits: Jan 2000 to Jul 2026
Last 24 months: 11 permits filed

79 permits since 2000: 49 completed, 10 in progress, 8 never finaled, 12 expired or cancelled.

Of the 8 never-finaled permits, 1 is 3 to 5 years old, 2 are 5 to 10 years old, 5 are over 10 years old.

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 stairs 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.

Stairs permits

All Roof deck 1 Deck 6 Stairs 4 Kitchen remodel 17 Bathroom remodel 18

4 stairs permits: 1 completed, 1 in progress, 2 never finaled. Typically 167 days from filing to permit and 424 days from permit to final inspection.

Filed	Outcome	Address	Work described on the permit	Declared cost
Nov 4, 2024	In progress issued Mar 2025	38 Hotaling Pl	1st & basement fl ti partial demo of (e) 1st fl plate for new openings. remove 2 existing stairs and replace with (n) accessible stairs. add (n) accessible bathroom, storage & mech storgae in the basement. add (n) wet bar & kitchen at 1st fl. remodel (e) bathroom at 1st fl Details Permit 202409261671 Status issued Filed Nov 4, 2024 Permit issued Mar 6, 2025 Declared cost $122,000 Address 38 Hotaling Pl 1st & basement fl ti partial demo of (e) 1st fl plate for new openings. remove 2 existing stairs and replace with (n) accessible stairs. add (n) accessible bathroom, storage & mech storgae in the basement. add (n) wet bar & kitchen at 1st fl. remodel (e) bathroom at 1st fl Open the permit page	$122,000
Nov 30, 2020	Completed final sign-off Aug 2022	432 Jackson St	commercial core shell: remove 1 existing stair to basement & skylight. level 1 provide 2 new ada bathrooms & t.i. . level 2 provide 1 new ada bathroom & t.i. . roof provide skylight. Details Permit 202011309841 Status complete Filed Nov 30, 2020 Permit issued Jun 14, 2021 Final sign-off Aug 12, 2022 Declared cost $450,000 Address 432 Jackson St commercial core shell: remove 1 existing stair to basement & skylight. level 1 provide 2 new ada bathrooms & t.i. . level 2 provide 1 new ada bathroom & t.i. . roof provide skylight. Open the permit page	$450,000
Sep 7, 2017	Never finaled issued Jan 2018, no final	2231 Bay St	revision to app#201606270952: eliminate rated corridor, deck, & stair railing change, minor structural. n/a for maher Details Permit 201709077234 Status issued Filed Sep 7, 2017 Permit issued Jan 23, 2018 Address 2231 Bay St revision to app#201606270952: eliminate rated corridor, deck, & stair railing change, minor structural. n/a for maher Open the permit page
Jun 27, 2016	Never finaled issued Mar 2017, no final	2231 Bay St	horizontal rear yard addition, renovate level 2, (n) roof deck @ rear 7'of bldg, stair to rear yard, 1/2 bath. Details Permit 201606270952 Status issued Filed Jun 27, 2016 Permit issued Mar 30, 2017 Declared cost $50,000 Address 2231 Bay St horizontal rear yard addition, renovate level 2, (n) roof deck @ rear 7'of bldg, stair to rear yard, 1/2 bath. Open the permit page	$50,000