Mizen Construction Inc

Contractor license: 979493; State license record
Based in: San Francisco
On San Francisco permits: Apr 2015 to Jul 2026
Last 24 months: 16 permits filed

79 permits since 2000: 65 completed, 5 in progress, 7 never finaled, 2 expired or cancelled.

Of the 7 never-finaled permits, 5 are 5 to 10 years old, 2 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 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.

Stairs permits

All Roof deck 3 Deck 13 Stairs 21 Kitchen remodel 24 Bathroom remodel 31

21 stairs permits: 19 completed, 1 in progress, 1 never finaled. Typically 39 days from filing to permit and 232 days from permit to final inspection.

Filed	Outcome	Address	Work described on the permit	Declared cost
Feb 20, 2026	In progress issued Jun 2026	25 Forest Side Av	rear 3rd story attic conversion for primary suite.living,dining,kitchen layout at the 2/f.alteration of the (e) stair to a code-compliant stair at all levels.removal of pre-existing illegal kitchen at the lower level family room.kitchen area to be replaced with a wet bar.deck guardrail replacement Details Permit 202601214255 Status issued Filed Feb 20, 2026 Permit issued Jun 26, 2026 Declared cost $700,000 Address 25 Forest Side Av rear 3rd story attic conversion for primary suite.living,dining,kitchen layout at the 2/f.alteration of the (e) stair to a code-compliant stair at all levels.removal of pre-existing illegal kitchen at the lower level family room.kitchen area to be replaced with a wet bar.deck guardrail replacement Open the permit page	$700,000
Jun 5, 2025	Completed final sign-off May 2026	1312 Cole St	interior/ rear scope not visible from st: remodel 2 kitchens, 2 bathrooms for both units (1 kitchen & 1 bath in each unit). upper unit: add a bathroom. install new windows & doors in the rear. remove rear exteior stairs not required for egress Details Permit 202506058054 Status complete Filed Jun 5, 2025 Permit issued Jun 11, 2025 Final sign-off May 29, 2026 Declared cost $175,000 Address 1312 Cole St interior/ rear scope not visible from st: remodel 2 kitchens, 2 bathrooms for both units (1 kitchen & 1 bath in each unit). upper unit: add a bathroom. install new windows & doors in the rear. remove rear exteior stairs not required for egress Open the permit page	$175,000
Oct 3, 2024	Completed final sign-off Jul 2025	2671 17th Av	revision to pa # 2022-0304-9310 remove from rear deck scope: demo (e) 2-story rear wood deck & stairs, replace with (n) steel framed decks with spiral stair. minor interior partition changes and changes to (n) exterior window sizes Details Permit 202410032234 Status complete Filed Oct 3, 2024 Permit issued Oct 3, 2024 Final sign-off Jul 9, 2025 Address 2671 17th Av revision to pa # 2022-0304-9310 remove from rear deck scope: demo (e) 2-story rear wood deck & stairs, replace with (n) steel framed decks with spiral stair. minor interior partition changes and changes to (n) exterior window sizes Open the permit page
Oct 27, 2023	Completed final sign-off Jul 2024	144 25th Av	to comply with boa's decision no. 23-030. revision to original pa 202302021229. reconfigure rear deck and stairs. provide structural details for 10' fence. Details Permit 202310279657 Status complete Filed Oct 27, 2023 Permit issued Oct 30, 2023 Final sign-off Jul 12, 2024 Address 144 25th Av to comply with boa's decision no. 23-030. revision to original pa 202302021229. reconfigure rear deck and stairs. provide structural details for 10' fence. Open the permit page
Oct 18, 2022	Completed final sign-off May 2023	1446 10th Av	convert 376sf of garage space to living space connected to 1446 10th ave with new internal stair, new bathroom in space, and 2 windows replace. remodel existing kitchen and bathroom in 1446. Details Permit 202210184566 Status complete Filed Oct 18, 2022 Permit issued Oct 24, 2022 Final sign-off May 17, 2023 Declared cost $300,000 Address 1446 10th Av convert 376sf of garage space to living space connected to 1446 10th ave with new internal stair, new bathroom in space, and 2 windows replace. remodel existing kitchen and bathroom in 1446. Open the permit page	$300,000
Mar 4, 2022	Completed final sign-off Jul 2025	2671 17th Av	in-fill (e) 57 sq ft 2-story light court w/ connected horizontal addition over (e) roof. in-fill (e) 9 sf 3-story property line light well. demo (e) 2-story rear wood deck & stairs, replace w/ steel-framed balconies & 1-story spiral stair. shift (e) interior main stair +/- 36" to rear. Details Permit 202203049310 Status complete Filed Mar 4, 2022 Permit issued Jan 4, 2023 Final sign-off Jul 9, 2025 Declared cost $320,000 Address 2671 17th Av in-fill (e) 57 sq ft 2-story light court w/ connected horizontal addition over (e) roof. in-fill (e) 9 sf 3-story property line light well. demo (e) 2-story rear wood deck & stairs, replace w/ steel-framed balconies & 1-story spiral stair. shift (e) interior main stair +/- 36" to rear. Open the permit page	$320,000
Feb 25, 2021	Completed final sign-off Mar 2022	4541 Irving St	remodel of existing retail space for new bookstore & accessory cafe. limited partition demolition; rebuild existing mezzanine stair to code. voluntary strengthening. replace windows. new storefront with walk-up window. Details Permit 202102255331 Status complete Filed Feb 25, 2021 Permit issued Jul 21, 2021 Final sign-off Mar 10, 2022 Declared cost $150,000 Address 4541 Irving St remodel of existing retail space for new bookstore & accessory cafe. limited partition demolition; rebuild existing mezzanine stair to code. voluntary strengthening. replace windows. new storefront with walk-up window. Open the permit page	$150,000
Aug 28, 2019	Completed final sign-off Feb 2024	23 Harry St	convert 1/f storage, workshop & crawlspace to habitable space w/int stairs to 2/f. minor renovation to 2/f, replacement stairs btwn 2/f & 3/f. reorganize 3/f interior. new insulated clad wood windows & doors. new ext fiber cement plank siding, upgrade to seismic resistance. elec, plumb, hvac systems Details Permit 201908280046 Status complete Filed Aug 28, 2019 Permit issued Sep 9, 2022 Final sign-off Feb 21, 2024 Declared cost $585,000 Address 23 Harry St convert 1/f storage, workshop & crawlspace to habitable space w/int stairs to 2/f. minor renovation to 2/f, replacement stairs btwn 2/f & 3/f. reorganize 3/f interior. new insulated clad wood windows & doors. new ext fiber cement plank siding, upgrade to seismic resistance. elec, plumb, hvac systems Open the permit page	$585,000
Jun 5, 2019	Never finaled issued Sep 2021, no final	36 Delano Av	(n) (3) story rear addition: (n) 1st fl family room, laundry, bath; (n) 2nd fl breakfast nook, stair; (n) 3rd fl master suite. (n) roof dormer, (n) rear deck. no change to front facade Details Permit 201906052592 Status issued Filed Jun 5, 2019 Permit issued Sep 29, 2021 Declared cost $200,000 Address 36 Delano Av (n) (3) story rear addition: (n) 1st fl family room, laundry, bath; (n) 2nd fl breakfast nook, stair; (n) 3rd fl master suite. (n) roof dormer, (n) rear deck. no change to front facade Open the permit page	$200,000
May 14, 2019	Completed final sign-off Oct 2020	339 Oxford St	replacing (e) rear 2nd flr deck and stairs to 1st flr & yard with new larger 2nd flr deck with fire wall. replace (e) exterior stairs from 1st to yard in kind Details Permit 201905140606 Status complete Filed May 14, 2019 Permit issued Oct 31, 2019 Final sign-off Oct 14, 2020 Declared cost $25,000 Address 339 Oxford St replacing (e) rear 2nd flr deck and stairs to 1st flr & yard with new larger 2nd flr deck with fire wall. replace (e) exterior stairs from 1st to yard in kind Open the permit page	$25,000
May 1, 2019	Completed final sign-off Mar 2020	764 44th Av	interior remodel of (e) bldg with fill-in on underside of (e) bldg volume. rooms down 1st fl fam rm, sitting rm, bdr, bathroom & laundry.2nd fl kitchen, bath remodel, remove intercal stair @ south wall. 3 windows in kind, 1 door filled in @ east facade w/ new window. Details Permit 201905019413 Status complete Filed May 1, 2019 Permit issued Jun 4, 2019 Final sign-off Mar 4, 2020 Declared cost $250,000 Address 764 44th Av interior remodel of (e) bldg with fill-in on underside of (e) bldg volume. rooms down 1st fl fam rm, sitting rm, bdr, bathroom & laundry.2nd fl kitchen, bath remodel, remove intercal stair @ south wall. 3 windows in kind, 1 door filled in @ east facade w/ new window. Open the permit page	$250,000
Feb 15, 2019	Completed final sign-off May 2022	331 27th St	renovation of (e) grd flr dwelling unit to remove (e) interior stair connected to 2nd flr. renovation of (e) 2nd flr & addition of (n) 3rd flr for a second dwelling unit on flrs 2 & 3. Details Permit 201902153064 Status complete Filed Feb 15, 2019 Permit issued Sep 25, 2020 Final sign-off May 4, 2022 Declared cost $300,000 Address 331 27th St renovation of (e) grd flr dwelling unit to remove (e) interior stair connected to 2nd flr. renovation of (e) 2nd flr & addition of (n) 3rd flr for a second dwelling unit on flrs 2 & 3. Open the permit page	$300,000
Jun 29, 2018	Completed final sign-off Jul 2018	883 Waller St	replace 7 wood steps and 4 risers at exterior front stair with in-kind wood. paint and refinish. Details Permit 201806293397 Status complete Filed Jun 29, 2018 Permit issued Jun 29, 2018 Final sign-off Jul 17, 2018 Declared cost $1,500 Address 883 Waller St replace 7 wood steps and 4 risers at exterior front stair with in-kind wood. paint and refinish. Open the permit page	$1,500
Jun 22, 2018	Completed final sign-off Oct 2018	345 Oxford St	removal and replacement at rear yard elevated wood decks and stair. replace in kind. Details Permit 201806222751 Status complete Filed Jun 22, 2018 Permit issued Sep 26, 2018 Final sign-off Oct 30, 2018 Declared cost $25,000 Address 345 Oxford St removal and replacement at rear yard elevated wood decks and stair. replace in kind. Open the permit page	$25,000
Jul 31, 2017	Completed final sign-off May 2019	117 College Av	remodel of (e) sfr include minor addition on both floors in rear of building (include in-fill under (e) 2nd floor overhang) infill of (e) lightwell on west pl. creation of new 80 sq.ft. deck @ rear of 2nd floor & re-configured stairs down to rear yard. misc. remodel 2 bathrooms. create 1 new bedroom Details Permit 201707313406 Status complete Filed Jul 31, 2017 Permit issued Mar 9, 2018 Final sign-off May 9, 2019 Declared cost $76,000 Address 117 College Av remodel of (e) sfr include minor addition on both floors in rear of building (include in-fill under (e) 2nd floor overhang) infill of (e) lightwell on west pl. creation of new 80 sq.ft. deck @ rear of 2nd floor & re-configured stairs down to rear yard. misc. remodel 2 bathrooms. create 1 new bedroom Open the permit page	$76,000
Jul 5, 2017	Completed final sign-off Aug 2017	204 Whitney St	repair dry rot on exterior stair in kind. less 50% repair. Details Permit 201707051014 Status complete Filed Jul 5, 2017 Permit issued Jul 5, 2017 Final sign-off Aug 1, 2017 Declared cost $4,000 Address 204 Whitney St repair dry rot on exterior stair in kind. less 50% repair. Open the permit page	$4,000
Apr 25, 2017	Completed final sign-off Jan 2018	1262 46th Av	to comply with nov 201771611 - demo & replacement of front entry stair. removed stucco clad arch over garages in kind replacement of structural wood posts under front porch. Details Permit 201704254880 Status complete Filed Apr 25, 2017 Permit issued Dec 19, 2017 Final sign-off Jan 24, 2018 Declared cost $5,000 Address 1262 46th Av to comply with nov 201771611 - demo & replacement of front entry stair. removed stucco clad arch over garages in kind replacement of structural wood posts under front porch. Open the permit page	$5,000
Feb 3, 2016	Completed final sign-off Sep 2016	530 Flood Av	remodel of (e) 1st flr garage space into bedroom, bath & study.new open interior stair to replace non-conforming stair. minor interior remodel work at 2nd flr, removal of interior walls to open space. new radiant floor heat throughout. Details Permit 201602038744 Status complete Filed Feb 3, 2016 Permit issued Feb 29, 2016 Final sign-off Sep 16, 2016 Declared cost $120,000 Address 530 Flood Av remodel of (e) 1st flr garage space into bedroom, bath & study.new open interior stair to replace non-conforming stair. minor interior remodel work at 2nd flr, removal of interior walls to open space. new radiant floor heat throughout. Open the permit page	$120,000
Dec 17, 2015	Completed final sign-off Jul 2016	1448 10th Av	remodel of existing 3rd floor unit. provide new master bathroom. provide new kitchen. extend landing for egress stair. seismic under seperate permit. Details Permit 201512175372 Status complete Filed Dec 17, 2015 Permit issued Jan 25, 2016 Final sign-off Jul 29, 2016 Declared cost $130,000 Address 1448 10th Av remodel of existing 3rd floor unit. provide new master bathroom. provide new kitchen. extend landing for egress stair. seismic under seperate permit. Open the permit page	$130,000
Nov 17, 2015	Completed final sign-off Nov 2015	3922 22nd St	reduce scope of work to just remodel bathroom. remove stair work. revision to permit app#: 201510058829. Details Permit 201511172815 Status complete Filed Nov 17, 2015 Permit issued Nov 17, 2015 Final sign-off Nov 19, 2015 Address 3922 22nd St reduce scope of work to just remodel bathroom. remove stair work. revision to permit app#: 201510058829. Open the permit page
Oct 5, 2015	Completed final sign-off Nov 2015	3922 22nd St	remodel existing bathroom and add new curved treads and risers at stairs Details Permit 201510058829 Status complete Filed Oct 5, 2015 Permit issued Oct 5, 2015 Final sign-off Nov 19, 2015 Declared cost $35,000 Address 3922 22nd St remodel existing bathroom and add new curved treads and risers at stairs Open the permit page	$35,000