Mason R Kirby

License: 29468; State contractor license record
Listed as: architect
On San Francisco permits: Dec 2019 to Dec 2022

8 permits since 2000 (architect on 8 permits): 3 completed, 3 in progress, 1 never finaled, 1 expired or cancelled.

CompletedIn progressNever finaledExpired or cancelled

This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. How to read these records

Most recent permits

Filed	Outcome	Address	Contractor	Work described on the permit	Declared cost
Dec 30, 2022	Expired or cancelled withdrawn Jun 2024	2081 Mission St		accessible business entrance program per ordinance 51-16. abe #202206231285. install new automatic door opener Details Permit 202212309575 Status withdrawn Filed Dec 30, 2022 Declared cost $4,000 Address 2081 Mission St accessible business entrance program per ordinance 51-16. abe #202206231285. install new automatic door opener Open the permit page	$4,000
Dec 10, 2021	Completed final sign-off Oct 2023	375 Park St	Grip Art Inc. Dba Jan Heyneker Custom Wk	revision to bpa#2021/0922/8960.including (n)fire-rated property rated wall,exterior entry stair replacement like for like,window replacement(9)interior renovation including full bath & (n) half bath. Details Permit 202112104136 Status complete Filed Dec 10, 2021 Permit issued Jan 11, 2022 Final sign-off Oct 24, 2023 Declared cost $15,000 Address 375 Park St revision to bpa#2021/0922/8960.including (n)fire-rated property rated wall,exterior entry stair replacement like for like,window replacement(9)interior renovation including full bath & (n) half bath. Open the permit page	$15,000
Oct 18, 2021	In progress issued Sep 2025	668 Hamilton St	Wing On Construction Inc	new 1045 square foot, 2 bedroom adu at 1st foor of new construction single-family home. this permit travels with #2021.0729.5403. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 668 hamilton st new construction permit application #2021.0729.5403 Details Permit 202110180695 Status issued Filed Oct 18, 2021 Permit issued Sep 23, 2025 Declared cost $80,000 Address 668 Hamilton St new 1045 square foot, 2 bedroom adu at 1st foor of new construction single-family home. this permit travels with #2021.0729.5403. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 668 hamilton st new construction permit application #2021.0729.5403 Open the permit page	$80,000
Oct 18, 2021	In progress issued Sep 2025	672 Hamilton St	Wing On Construction Inc	new adu proposed with new single family residence. this project travels with #2021.0729.5380. (lot a)-new construction(672 hamilton st) approved conditional use: 2020-007383cua 672 hamilton st new construction permit application #2021.0729.5380 Details Permit 202110180694 Status issued Filed Oct 18, 2021 Permit issued Sep 23, 2025 Declared cost $60,000 Address 672 Hamilton St new adu proposed with new single family residence. this project travels with #2021.0729.5380. (lot a)-new construction(672 hamilton st) approved conditional use: 2020-007383cua 672 hamilton st new construction permit application #2021.0729.5380 Open the permit page	$60,000
Oct 18, 2021	In progress issued Sep 2025	662 Hamilton St	Wing On Construction Inc	new 830 square foot, 1 bedroom adu at 1st floor of new construction single-family home. this permit trabels with #2021.0729.5383. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 662 hamilton st new construction permit application #2021.0729.5383 Details Permit 202110180696 Status issued Filed Oct 18, 2021 Permit issued Sep 23, 2025 Declared cost $70,000 Address 662 Hamilton St new 830 square foot, 1 bedroom adu at 1st floor of new construction single-family home. this permit trabels with #2021.0729.5383. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 662 hamilton st new construction permit application #2021.0729.5383 Open the permit page	$70,000
Oct 12, 2021	Completed final sign-off Dec 2022	2674 Filbert St	K 2 Builders Inc	interior remodel: replacement of (e) g/f bathroom, add new dry sauna, new gas fireplace, new replacement of (e) door and (e) windows with new french doors at rear balcony, replacement of 3' of (e) wood slat exterior stair enclosure with new glass view panels. no change to habitable square footage. Details Permit 202110120261 Status complete Filed Oct 12, 2021 Permit issued Jan 14, 2022 Final sign-off Dec 6, 2022 Declared cost $60,000 Address 2674 Filbert St interior remodel: replacement of (e) g/f bathroom, add new dry sauna, new gas fireplace, new replacement of (e) door and (e) windows with new french doors at rear balcony, replacement of 3' of (e) wood slat exterior stair enclosure with new glass view panels. no change to habitable square footage. Open the permit page	$60,000
Apr 21, 2021	Never finaled issued Jun 2021, no final	488 Anderson St	Pro Com Home Services California Inc	revision to pa# 2019 0227 3965 to document as-constructed conditions per building inspector's request. Details Permit 202104219062 Status issued Filed Apr 21, 2021 Permit issued Jun 2, 2021 Address 488 Anderson St revision to pa# 2019 0227 3965 to document as-constructed conditions per building inspector's request. Open the permit page
Dec 23, 2019	Completed final sign-off Jun 2020	300 Winfield St	Christopher Wells Construction Inc.	replace (e) glass railing with new wood railing. replace (e) decking as required for railing replacement. footprint of (e) deck established on pa #2013-0322-2868. Details Permit 201912230414 Status complete Filed Dec 23, 2019 Permit issued Jan 7, 2020 Final sign-off Jun 22, 2020 Declared cost $2,500 Address 300 Winfield St replace (e) glass railing with new wood railing. replace (e) decking as required for railing replacement. footprint of (e) deck established on pa #2013-0322-2868. Open the permit page	$2,500