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 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.

Deck permits

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

6 deck permits: 2 completed, 1 in progress, 1 never finaled, 2 expired or cancelled. Typically 10 days from filing to permit and 151 days from permit to final inspection.

Filed	Outcome	Address	Work described on the permit	Declared cost
Mar 12, 2025	In progress issued Mar 2025	1360 Montgomery St	unit 10 - exterior door replacement at deck; not visible from street Details Permit 202503122135 Status issued Filed Mar 12, 2025 Permit issued Mar 19, 2025 Declared cost $1,200 Address 1360 Montgomery St unit 10 - exterior door replacement at deck; not visible from street Open the permit page	$1,200
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
Jan 29, 2009	Completed final sign-off May 2009	531 Hugo St	replace (e) door & side light on rear of building in like kind. repair siding & sheetrock. door opens on to rear deck. Details Permit 200901291072 Status complete Filed Jan 29, 2009 Permit issued Jan 29, 2009 Final sign-off May 15, 2009 Declared cost $12,000 Address 531 Hugo St replace (e) door & side light on rear of building in like kind. repair siding & sheetrock. door opens on to rear deck. Open the permit page	$12,000
Sep 16, 2003	Completed final sign-off Apr 2004	636 30th St	new windows and doors, new skylight, reduction of existing deck Details Permit 200309164944 Status complete Filed Sep 16, 2003 Permit issued Sep 30, 2003 Final sign-off Apr 13, 2004 Declared cost $18,000 Address 636 30th St new windows and doors, new skylight, reduction of existing deck Open the permit page	$18,000
Apr 23, 2003	Expired or cancelled expired Feb 2007	2211 Scott St	front deck to repaired of leak & replacced. windows at front to be replaced w/marvin clad wood windo Details Permit 200304232964 Status expired Filed Apr 23, 2003 Permit issued Apr 23, 2003 Declared cost $3,000 Address 2211 Scott St front deck to repaired of leak & replacced. windows at front to be replaced w/marvin clad wood windo Open the permit page	$3,000
Jan 23, 2001	Expired or cancelled expired Jul 2002	44 Normandie Tr	construction of roof access deck completely within extg bldg envelope Details Permit 200101230447 Status expired Filed Jan 23, 2001 Permit issued Feb 14, 2001 Declared cost $2,500 Address 44 Normandie Tr construction of roof access deck completely within extg bldg envelope Open the permit page	$2,500