Yk Mason & Sons Inc
- Based in
- San Francisco
- On San Francisco permits
- Jun 2016 to Jul 2026
- Last 24 months
- 8 permits filed
26 permits since 2000: 21 completed, 4 in progress, 1 expired 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
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
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Jul 13, 2026 | In progress issued Jul 2026 | 478 Joost Av | bathroom remodel, changing tub to shower pan, plumbing and electrical updates as needed.Details
bathroom remodel, changing tub to shower pan, plumbing and electrical updates as needed. | $20,000 |
| Jun 9, 2026 | In progress issued Jul 2026 | 1334 28th Av | new wall to separate garage and family room; legalizing 888 sf with (e) office, (e)bedroom, (e)family room; on 2/f: change (e)kitchen to office, (e)dining room to kitchen.Details
new wall to separate garage and family room; legalizing 888 sf with (e) office, (e)bedroom, (e)family room; on 2/f: change (e)kitchen to office, (e)dining room to kitchen. | $50,000 |
| May 13, 2026 | Completed final sign-off Jun 2026 | 234 04th Av | unit 234 1/2: kitchen remodel, install new circuit breaker to lower unit, adding receptacles to kitchen counter, new kitchen cabinets, replace p traps for kitchen sink.Details
unit 234 1/2: kitchen remodel, install new circuit breaker to lower unit, adding receptacles to kitchen counter, new kitchen cabinets, replace p traps for kitchen sink. | $7,000 |
| Mar 25, 2026 | In progress issued Mar 2026 | 128 Valmar Tr | add bathroom and storage room in first floor in sfd.Details
add bathroom and storage room in first floor in sfd. | $25,000 |
| Feb 25, 2026 | Completed final sign-off Mar 2026 | 128 Valmar Tr | recommencement and completion of work approved under pa#202408209104Details
recommencement and completion of work approved under pa#202408209104 | $7,500 |
| Nov 18, 2025 | Completed final sign-off Dec 2025 | 232 04th Av | change window in 232f: front window and kitchen window on the side. 234: change 3 windows in the front only. no size change and no change of location.Details
change window in 232f: front window and kitchen window on the side. 234: change 3 windows in the front only. no size change and no change of location. | $6,000 |
| Jun 30, 2025 | Completed final sign-off Oct 2025 | 1831 40th Av | bathroom remodel on 2nd floor. changing bath tub to shower. all plumbing and electrical to remain in same location.Details
bathroom remodel on 2nd floor. changing bath tub to shower. all plumbing and electrical to remain in same location. | $15,000 |
| Mar 5, 2025 | Completed final sign-off Apr 2025 | 232 04th Av | (rear unit) kitchen remodel with updating kitchen cabinet & countertop. install new subpanel for the kitchen area electrical work. install new electrical for the kitchen. no plumbing work and mechanical work. change 10 windows in the back in kindDetails
(rear unit) kitchen remodel with updating kitchen cabinet & countertop. install new subpanel for the kitchen area electrical work. install new electrical for the kitchen. no plumbing work and mechanical work. change 10 windows in the back in kind | $20,000 |
| Feb 6, 2024 | Completed final sign-off Aug 2024 | 2375 31st Av | revision to pa202211176787 and 202312142510 for title 24 energy compliance.Details
revision to pa202211176787 and 202312142510 for title 24 energy compliance. | |
| Jan 12, 2024 | In progress issued Feb 2026 | 2154 Taylor St | new roof deck for unit 6 onlyDetails
new roof deck for unit 6 only | $30,000 |
| Dec 14, 2023 | Completed final sign-off Aug 2024 | 2375 31st Av | revision to pa# 202211176787, replace (e) gas tank-type water heater w/ electric, heat pump tank-type water heater, installation of heat pump, split unit, heating/cooling system for adu.Details
revision to pa# 202211176787, replace (e) gas tank-type water heater w/ electric, heat pump tank-type water heater, installation of heat pump, split unit, heating/cooling system for adu. | $2,000 |
| Nov 17, 2023 | Completed final sign-off Jul 2024 | 880 Wisconsin St | 1st fl:convert e bathroom and storage into bedrm suite (390 sf). update e interior stairs rise and tread to comply w code, install solar tube from roof to 1st fl, remove diagonal bracing in garage.Details
1st fl:convert e bathroom and storage into bedrm suite (390 sf). update e interior stairs rise and tread to comply w code, install solar tube from roof to 1st fl, remove diagonal bracing in garage. | $40,000 |
| Oct 19, 2023 | Completed final sign-off Oct 2023 | 2154 Taylor St | revision to pa 202210194724 and 202103156516. revise unit numbers.Details
revision to pa 202210194724 and 202103156516. revise unit numbers. | |
| Oct 2, 2023 | Completed final sign-off Oct 2023 | 251 Sagamore St | replace wood siding to cement hardie backer siding. install 1/2 new plywood to back of the house. work is not visible to the street.Details
replace wood siding to cement hardie backer siding. install 1/2 new plywood to back of the house. work is not visible to the street. | $12,000 |
| Aug 30, 2023 | Completed final sign-off Oct 2023 | 1400 26th Av | dry rot repair on the north side of the building. reinstall window, wood repair, and stucco work. replace 15 feet of the neighbor fence. fence is no more than 6 ft high. window is not visible to the street.Details
dry rot repair on the north side of the building. reinstall window, wood repair, and stucco work. replace 15 feet of the neighbor fence. fence is no more than 6 ft high. window is not visible to the street. | $20,000 |
| Nov 17, 2022 | Completed final sign-off Aug 2024 | 2375 31st Av | to comply w/nov 202288755, unit legalization under ordinance 43-14. in-fill (e) interior stairway opening.Details
to comply w/nov 202288755, unit legalization under ordinance 43-14. in-fill (e) interior stairway opening. | $3,000 |
| Oct 19, 2022 | Completed final sign-off Oct 2023 | 2154 Taylor St | revision to 202103156516, new garage bathroom, meter room, and remove rear storage. reconfigure 2nd fl kitchen, bath, laundry, rear sizing. reconfigure 3rd fl kitchen, bathroom, laundry, area glazing and 3 skylightDetails
revision to 202103156516, new garage bathroom, meter room, and remove rear storage. reconfigure 2nd fl kitchen, bath, laundry, rear sizing. reconfigure 3rd fl kitchen, bathroom, laundry, area glazing and 3 skylight | $10,000 |
| Oct 11, 2022 | Completed final sign-off Feb 2023 | 1413 Van Dyke Av | to obtain final inspection for work approved under pa#: 201606230703 and 201907085258. all work completed. renewal of permit.Details
to obtain final inspection for work approved under pa#: 201606230703 and 201907085258. all work completed. renewal of permit. | |
| May 27, 2022 | Completed final sign-off Oct 2022 | 430 Warren Dr | to comply with nov 202184086. fire and water damage repair. 1 bathroom remodel and 1 kitchen remodel. remove all walls, sheetrock and add new insulation and sheetrock for unit 1Details
to comply with nov 202184086. fire and water damage repair. 1 bathroom remodel and 1 kitchen remodel. remove all walls, sheetrock and add new insulation and sheetrock for unit 1 | $130,000 |
| Oct 28, 2021 | Completed final sign-off Nov 2021 | 295 Mangels Av | first floor one bathroom remodel. changing bath tub to custom shower.Details
first floor one bathroom remodel. changing bath tub to custom shower. | $15,000 |
| May 7, 2021 | Completed final sign-off Aug 2021 | 232 04th Av | #f: kitchen and bathroom remodel. no structure changes. no plmbg changes. add new sub-panel to the unit for kitchen and bathroom.Details
#f: kitchen and bathroom remodel. no structure changes. no plmbg changes. add new sub-panel to the unit for kitchen and bathroom. | $35,000 |
| Mar 15, 2021 | Completed final sign-off Oct 2023 | 2154 Taylor St | kitchen & bathroom remodel in unit 1,2,3,4,6. layout reconfiguration in unit 3,4 and add washer/dryer to unit 1,5. reconfigure unit 5 to (2) bed (3) bath.Details
kitchen & bathroom remodel in unit 1,2,3,4,6. layout reconfiguration in unit 3,4 and add washer/dryer to unit 1,5. reconfigure unit 5 to (2) bed (3) bath. | $180,000 |
| Jan 7, 2021 | Completed final sign-off Mar 2024 | 61 Desmond St | new adu at the 1st floor w/ one new kitchen, living area and 2 bedrooms. per ordinance 162-16. front facade remain no change.Details
new adu at the 1st floor w/ one new kitchen, living area and 2 bedrooms. per ordinance 162-16. front facade remain no change. | $100,000 |
| Aug 29, 2019 | Completed final sign-off Mar 2021 | 634 South Van Ness Av | add new kitchen, 1 (n) bedroom and 1 (n) bathroom on 1st flr. add 1 (n) bedroom and 1 (n) bathroom on 3rd flr. infill lightwell.Details
add new kitchen, 1 (n) bedroom and 1 (n) bathroom on 1st flr. add 1 (n) bedroom and 1 (n) bathroom on 3rd flr. infill lightwell. | $96,000 |
| Aug 1, 2017 | Completed final sign-off Aug 2023 | 2154 Taylor St | soft story retrofit per sfebc chapter 4d, asce 41-06.Details
soft story retrofit per sfebc chapter 4d, asce 41-06. | $100,000 |
| Jun 23, 2016 | Expired or cancelled expired Feb 2023 | 1413 Van Dyke Av | construct (n) 1-story, no basement, warehouse.Details
construct (n) 1-story, no basement, warehouse. | $100,000 |