Terence Mcmahon Construction

Contractor license: 797580; State license record
Based in: San Francisco
On San Francisco permits: Sep 2005 to Jul 2026
Last 24 months: 56 permits filed

551 permits since 2000: 426 completed, 27 in progress, 74 never finaled, 24 expired or cancelled.

Of the 74 never-finaled permits, 14 are 3 to 5 years old, 36 are 5 to 10 years old, 24 are over 10 years old. 1 was filed but never issued.

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 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.

Roof deck permits

All Roof deck 9 Deck 40 Stairs 47 Kitchen remodel 105 Bathroom remodel 116

9 roof deck permits: 7 completed, 1 in progress, 1 never finaled. Typically 336 days from filing to permit and 175 days from permit to final inspection.

Filed	Outcome	Address	Work described on the permit	Declared cost
May 1, 2026	In progress filed May 2026, not yet issued	2140 Great Hy	abatement of nov #201953441. legalize unpermitted unit as state adu (unit a, 686 sf) at g/f per gvnt sec, 65852.2. convert (e) 1-story sloping to be roof deck per (e) access to open space. no change to bldg. replace 2 windows w. 2 glazed slidingdoors on 2/f. no deferral. Details Permit 202604139298 Status filed Filed May 1, 2026 Declared cost $85,000 Address 2140 Great Hy abatement of nov #201953441. legalize unpermitted unit as state adu (unit a, 686 sf) at g/f per gvnt sec, 65852.2. convert (e) 1-story sloping to be roof deck per (e) access to open space. no change to bldg. replace 2 windows w. 2 glazed slidingdoors on 2/f. no deferral. Open the permit page	$85,000
Oct 11, 2023	Completed final sign-off Apr 2024	3990 Washington St	retile roof deck on 2nd fl, also re waterproof visible from street Details Permit 202310118406 Status complete Filed Oct 11, 2023 Permit issued Oct 11, 2023 Final sign-off Apr 3, 2024 Declared cost $6,000 Address 3990 Washington St retile roof deck on 2nd fl, also re waterproof visible from street Open the permit page	$6,000
Jul 1, 2022	Completed final sign-off Jul 2023	2300 Leavenworth St	restoration of permitted roof deck under bpa 7801260 to address nov202014261. Details Permit 202207017635 Status complete Filed Jul 1, 2022 Permit issued Mar 23, 2023 Final sign-off Jul 14, 2023 Declared cost $7,500 Address 2300 Leavenworth St restoration of permitted roof deck under bpa 7801260 to address nov202014261. Open the permit page	$7,500
Mar 23, 2021	Completed final sign-off Jun 2024	614 Buchanan St	demo rear (e) wood exterior egress stair & non-compliant balcony (#616 kitchen) replace & relocate. demo (e) roof for (n) roof deck & glazed wind protection. (n) mech & photovoltaic system. replace (e) single glazed windows w/ double glazed. interior remodeling in both units Details Permit 202103237083 Status complete Filed Mar 23, 2021 Permit issued Dec 19, 2022 Final sign-off Jun 6, 2024 Declared cost $595,000 Address 614 Buchanan St demo rear (e) wood exterior egress stair & non-compliant balcony (#616 kitchen) replace & relocate. demo (e) roof for (n) roof deck & glazed wind protection. (n) mech & photovoltaic system. replace (e) single glazed windows w/ double glazed. interior remodeling in both units Open the permit page	$595,000
Sep 22, 2020	Never finaled issued Nov 2021, no final	118 Collins St	1 story horizontal addition @ ground floor. balcony @ 2nd floor on top of horizontal addition. pedestrian rear yard access bridge. spiral stair from balcony to roof, roof deck, new entry door / window @ front facade. excavation @ rear yard, new rear yard hardscape(concrete steps & retaining walls) Details Permit 202009224738 Status issued Filed Sep 22, 2020 Permit issued Nov 4, 2021 Declared cost $245,000 Address 118 Collins St 1 story horizontal addition @ ground floor. balcony @ 2nd floor on top of horizontal addition. pedestrian rear yard access bridge. spiral stair from balcony to roof, roof deck, new entry door / window @ front facade. excavation @ rear yard, new rear yard hardscape(concrete steps & retaining walls) Open the permit page	$245,000
Jan 7, 2019	Completed final sign-off Apr 2025	3537 23rd St	2 story vertical addition & roof decks. horizontal rear yard addition. provide new 2nd unit at 1st floor and 2nd floor, and 2nd unit @ 3rd & 4th floor. remodel front facade. Details Permit 201901079729 Status complete Filed Jan 7, 2019 Permit issued Dec 1, 2021 Final sign-off Apr 25, 2025 Declared cost $700,000 Address 3537 23rd St 2 story vertical addition & roof decks. horizontal rear yard addition. provide new 2nd unit at 1st floor and 2nd floor, and 2nd unit @ 3rd & 4th floor. remodel front facade. Open the permit page	$700,000
Nov 17, 2016	Completed final sign-off Jul 2024	735 Clementina St	legalize existing unpermitted single family dwelling convert from warehouse. upgrade bathroom, kitchen, new interior finishes. improvements to roof deck, add stair to penthouse on roof. n/a maher ordinance Details Permit 201611173048 Status complete Filed Nov 17, 2016 Permit issued Nov 28, 2023 Final sign-off Jul 2, 2024 Declared cost $187,000 Address 735 Clementina St legalize existing unpermitted single family dwelling convert from warehouse. upgrade bathroom, kitchen, new interior finishes. improvements to roof deck, add stair to penthouse on roof. n/a maher ordinance Open the permit page	$187,000
Jul 18, 2014	Completed final sign-off Sep 2014	508 Oak St	remove top roof deck & remove attic ladder in unit #510. to comply with physical inspection report #cc-7637 Details Permit 201407181569 Status complete Filed Jul 18, 2014 Permit issued Jul 18, 2014 Final sign-off Sep 25, 2014 Declared cost $2,000 Address 508 Oak St remove top roof deck & remove attic ladder in unit #510. to comply with physical inspection report #cc-7637 Open the permit page	$2,000
May 17, 2006	Completed final sign-off Jul 2006	66 Fountain St	add new framing of lapered joist and 2x6 trex deck boards to (e) roof deck. Details Permit 200605171801 Status complete Filed May 17, 2006 Permit issued May 17, 2006 Final sign-off Jul 6, 2006 Declared cost $7,000 Address 66 Fountain St add new framing of lapered joist and 2x6 trex deck boards to (e) roof deck. Open the permit page	$7,000