Bay Air Systems, Inc

Contractor license: 450929; State license record
Based in: Concord
On San Francisco permits: Jun 2004 to Jul 2026
Last 24 months: 4 permits filed

20 permits since 2000: 11 completed, 3 in progress, 5 never finaled, 1 expired or cancelled.

Of the 5 never-finaled permits, 1 is 5 to 10 years old, 4 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, citywideThis contractor’s finished permits

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.

Most recent permits

All Kitchen remodel 1

Filed	Outcome	Address	Work described on the permit	Declared cost
Jul 23, 2026	In progress issued Aug 2026	2101 Mission St	plumbing associated with 202602266554l. deferred plumbing as part of mep Details Permit 202607235448 Status issued Filed Jul 23, 2026 Permit issued Aug 6, 2026 Address 2101 Mission St plumbing associated with 202602266554l. deferred plumbing as part of mep Open the permit page
Apr 30, 2026	Completed final sign-off Aug 2026	188 Octavia St	installing heating gas furnace system with ductwork for suite b Details Permit 202604300382 Status complete Filed Apr 30, 2026 Permit issued Apr 30, 2026 Final sign-off Aug 25, 2026 Declared cost $27,000 Address 188 Octavia St installing heating gas furnace system with ductwork for suite b Open the permit page	$27,000
Apr 2, 2026	In progress issued Apr 2026	2101 Mission St	suite 108b. heating and cooling system. ref pa# 202603207998. Details Permit 202604028770 Status issued Filed Apr 2, 2026 Permit issued Apr 13, 2026 Declared cost $25,000 Address 2101 Mission St suite 108b. heating and cooling system. ref pa# 202603207998. Open the permit page	$25,000
Apr 2, 2026	In progress issued Apr 2026	2101 Mission St	install new mechanical heating & cooling systom for 1st & 2nd fl, ste 100 & 200. fan coils weight 67 lbs, condensing unit 775 lbs. ref arch pa# 202602266554 Details Permit 202604028772 Status issued Filed Apr 2, 2026 Permit issued Apr 13, 2026 Declared cost $250,000 Address 2101 Mission St install new mechanical heating & cooling systom for 1st & 2nd fl, ste 100 & 200. fan coils weight 67 lbs, condensing unit 775 lbs. ref arch pa# 202602266554 Open the permit page	$250,000
Sep 17, 2020	Completed final sign-off Dec 2020	251 Rhode Island St	replacement of rooftop hvac unit. Details Permit 202009174401 Status complete Filed Sep 17, 2020 Permit issued Oct 30, 2020 Final sign-off Dec 7, 2020 Declared cost $73,500 Address 251 Rhode Island St replacement of rooftop hvac unit. Open the permit page	$73,500
Sep 17, 2020	Completed final sign-off Nov 2020	840 Battery St	replacement of 2 rooftop package hvac system. Details Permit 202009174414 Status complete Filed Sep 17, 2020 Permit issued Oct 7, 2020 Final sign-off Nov 16, 2020 Declared cost $162,590 Address 840 Battery St replacement of 2 rooftop package hvac system. Open the permit page	$162,590
Dec 31, 2019	Completed final sign-off Feb 2020	1098 Harrison St	as built fire alarm ref 201912048653 Details Permit 201912311017 Status complete Filed Dec 31, 2019 Permit issued Dec 31, 2019 Final sign-off Feb 1, 2020 Address 1098 Harrison St as built fire alarm ref 201912048653 Open the permit page
Dec 4, 2019	Completed final sign-off Feb 2020	1098 Harrison St	phase 3 of tenant improvement fire life safety. Details Permit 201912048653 Status complete Filed Dec 4, 2019 Permit issued Dec 10, 2019 Final sign-off Feb 1, 2020 Address 1098 Harrison St phase 3 of tenant improvement fire life safety. Open the permit page
Sep 19, 2019	Completed final sign-off Mar 2020	1098 Harrison St	phase 2 of ti, fire alarm (fls) Details Permit 201909192051 Status complete Filed Sep 19, 2019 Permit issued Sep 19, 2019 Final sign-off Mar 13, 2020 Address 1098 Harrison St phase 2 of ti, fire alarm (fls) Open the permit page
Aug 29, 2019	Completed final sign-off Feb 2020	1098 Harrison St	revision & as builts to 201908027674 reflecting deleted devices, new seq of operations, change scope from full building alarm to a 3 phase installation of which this is phase one. only work being done on this permit: changing dial-out to cellular dialer. Details Permit 201908290158 Status complete Filed Aug 29, 2019 Permit issued Aug 29, 2019 Final sign-off Feb 7, 2020 Declared cost $1,000 Address 1098 Harrison St revision & as builts to 201908027674 reflecting deleted devices, new seq of operations, change scope from full building alarm to a 3 phase installation of which this is phase one. only work being done on this permit: changing dial-out to cellular dialer. Open the permit page	$1,000
Aug 2, 2019	Completed final sign-off Sep 2019	1098 Harrison St	install new fire alarm system. ref pa#201906183685. maher ord 155-13 na Details Permit 201908027674 Status complete Filed Aug 2, 2019 Permit issued Aug 2, 2019 Final sign-off Sep 6, 2019 Declared cost $165,000 Address 1098 Harrison St install new fire alarm system. ref pa#201906183685. maher ord 155-13 na Open the permit page	$165,000
May 1, 2019	Never finaled issued May 2019, no final	840 Battery St	replace 4 ac units at roof. n/a for maher. Details Permit 201905019379 Status issued Filed May 1, 2019 Permit issued May 1, 2019 Declared cost $84,500 Address 840 Battery St replace 4 ac units at roof. n/a for maher. Open the permit page	$84,500
Sep 18, 2018	Completed final sign-off Jan 2020	1098 Harrison St	hvac system retrofit Details Permit 201809180582 Status complete Filed Sep 18, 2018 Permit issued Sep 28, 2018 Final sign-off Jan 15, 2020 Declared cost $1,200,000 Address 1098 Harrison St hvac system retrofit Open the permit page	$1,200,000
May 20, 2015	Never finaled issued May 2015, no final	1580 16th St	replacement of roof top packaged electric heat pump units ac units. maher ordinance # 155-13 n/a. previous units under pa# 201409025185 (final 5/20/15) Details Permit 201505206755 Status issued Filed May 20, 2015 Permit issued May 21, 2015 Declared cost $77,950 Address 1580 16th St replacement of roof top packaged electric heat pump units ac units. maher ordinance # 155-13 n/a. previous units under pa# 201409025185 (final 5/20/15) Open the permit page	$77,950
Sep 2, 2014	Completed final sign-off May 2015	251 Rhode Island St	replacement of roof top packaged electric heat pump units. maher ordinance # 155-13 n/a. Details Permit 201409025185 Status complete Filed Sep 2, 2014 Permit issued Sep 3, 2014 Final sign-off May 21, 2015 Declared cost $173,250 Address 251 Rhode Island St replacement of roof top packaged electric heat pump units. maher ordinance # 155-13 n/a. Open the permit page	$173,250
Jun 17, 2014	Never finaled issued Aug 2014, no final	170 Columbus Av	replace 150 ton air-cooled chiller on rooftop including steel base frame, disconnect and reconnect chilled water lines and electrical at chiller. Details Permit 201406178601 Status issued Filed Jun 17, 2014 Permit issued Aug 14, 2014 Declared cost $165,000 Address 170 Columbus Av replace 150 ton air-cooled chiller on rooftop including steel base frame, disconnect and reconnect chilled water lines and electrical at chiller. Open the permit page	$165,000
Feb 6, 2013	Never finaled issued Feb 2013, no final	840 Battery St	1st floor & roof-revision to pa# 2012-0830-8583-add 3 cooling only , 3 tons dx split system units serving 1st floor Details Permit 201302069597 Status issued Filed Feb 6, 2013 Permit issued Feb 6, 2013 Declared cost $40,000 Address 840 Battery St 1st floor & roof-revision to pa# 2012-0830-8583-add 3 cooling only , 3 tons dx split system units serving 1st floor Open the permit page	$40,000
Aug 30, 2012	Never finaled issued Sep 2012, no final	840 Battery St	1st floor & roof, mech & structural, 1st floor, mech upgrade and chiller work on roof. ref. t.i. 201208157467 Details Permit 201208308583 Status issued Filed Aug 30, 2012 Permit issued Sep 6, 2012 Declared cost $296,250 Address 840 Battery St 1st floor & roof, mech & structural, 1st floor, mech upgrade and chiller work on roof. ref. t.i. 201208157467 Open the permit page	$296,250
Feb 6, 2012	Completed final sign-off May 2012	2201 Chestnut St	alteration of existing kitchen hood system, relocate & replace exhaust fan, replace make-up air fan, relocate make-up air diffusers. Details Permit 201202063621 Status complete Filed Feb 6, 2012 Permit issued Feb 29, 2012 Final sign-off May 22, 2012 Declared cost $10,000 Address 2201 Chestnut St alteration of existing kitchen hood system, relocate & replace exhaust fan, replace make-up air fan, relocate make-up air diffusers. Open the permit page	$10,000
Jun 22, 2004	Expired or cancelled expired Apr 2006	2172 Mission St	install 4 vac system/lighting and t-24 under separate permit Details Permit 200406227020 Status expired Filed Jun 22, 2004 Permit issued Jun 22, 2004 Declared cost $12,000 Address 2172 Mission St install 4 vac system/lighting and t-24 under separate permit Open the permit page	$12,000