Wei Dang Builders Inc.
- Based in
- San Francisco
- On San Francisco permits
- Nov 2018 to Sep 2026
- Last 24 months
- 7 permits filed
42 permits since 2000: 33 completed, 5 in progress, 4 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 |
|---|---|---|---|---|
| Sep 23, 2026 | Completed final sign-off Oct 2026 | 1240 15th Av | to obtain final inspection for work approved under pa# 201907024927, 202311150857, 202502100056. all work is complete.Details
to obtain final inspection for work approved under pa# 201907024927, 202311150857, 202502100056. all work is complete. | |
| Jun 24, 2026 | In progress issued Jun 2026 | 1240 15th Av | revision to 202603097194, change all railing including 3rd floor balcony and deck from glass & wood to all steel.Details
revision to 202603097194, change all railing including 3rd floor balcony and deck from glass & wood to all steel. | $10,000 |
| Mar 9, 2026 | Completed final sign-off Sep 2026 | 1240 15th Av | revision to existing pa#202404260882. rebuild existing 2nd story deck with exterior stairs. maximum deck projection is 9 feet. no firewall construction. replace interior stairs guardrails with glass guardrails. in kind.Details
revision to existing pa#202404260882. rebuild existing 2nd story deck with exterior stairs. maximum deck projection is 9 feet. no firewall construction. replace interior stairs guardrails with glass guardrails. in kind. | $25,000 |
| Feb 4, 2026 | Expired or cancelled cancelled Jun 2026 | 566 Castro St | change of use from (e) retail to massage use. new non bearing wall for each massage use. upgrade ada restroom per da checklist 20%.Details
change of use from (e) retail to massage use. new non bearing wall for each massage use. upgrade ada restroom per da checklist 20%. | $76,000 |
| Jul 18, 2025 | Completed final sign-off Sep 2026 | 421 Princeton St | ground fl: convert (e) family room to a new office and bedroom. 2nd fl: remodel (e) kitchen, convert (e) half bath to a full bath. voluntary structural strengtheningDetails
ground fl: convert (e) family room to a new office and bedroom. 2nd fl: remodel (e) kitchen, convert (e) half bath to a full bath. voluntary structural strengthening | $80,000 |
| May 13, 2025 | Completed final sign-off Jun 2025 | 1815 18th Av | revision to bpa# 202401315011: reconfigure roof deck sizes and change railing materials.Details
revision to bpa# 202401315011: reconfigure roof deck sizes and change railing materials. | |
| Dec 24, 2024 | In progress issued Nov 2025 | 379 Naples St | 1/f: add adu per government code section 65852.2, add 2 bedrooms, kitchen, living room and 1 full bath.Details
1/f: add adu per government code section 65852.2, add 2 bedrooms, kitchen, living room and 1 full bath. | $120,000 |
| Jun 25, 2024 | In progress issued Nov 2024 | 1240 15th Av | to comply w/nov # 201932731 & 202317024, convert gr flr into habitable space add 830 sqft, add 3 bathrooms, wetbar, office & fitness rm; remodel (e) kitchen and remove walls on the 2nd flr; remodel (e) bathroom, add 2 new bathrooms and add skylights on 3rd flr; infill lightwellDetails
to comply w/nov # 201932731 & 202317024, convert gr flr into habitable space add 830 sqft, add 3 bathrooms, wetbar, office & fitness rm; remodel (e) kitchen and remove walls on the 2nd flr; remodel (e) bathroom, add 2 new bathrooms and add skylights on 3rd flr; infill lightwell | $350,000 |
| Jun 14, 2024 | In progress issued Jun 2024 | 1618 36th Av | enlarge 1 existing window on 2nd flr.replace 1 existing window (same size 2nd flr). add one new window and convert office to bedroom on 1st flr. add new skylight. new patio door on 1st flr. ref permit 202402236468.Details
enlarge 1 existing window on 2nd flr.replace 1 existing window (same size 2nd flr). add one new window and convert office to bedroom on 1st flr. add new skylight. new patio door on 1st flr. ref permit 202402236468. | $5,000 |
| May 3, 2024 | Completed final sign-off Dec 2024 | 1812 Silver Av | revision to permit 201904016757. 1st and 2nd floor: layout reconfiguration.Details
revision to permit 201904016757. 1st and 2nd floor: layout reconfiguration. | |
| Apr 23, 2024 | Completed final sign-off Mar 2025 | 1454 25th Av | revision to pa# 2023-0223-2528 & 202307273175 1st fl: relocate wet bar & closet 2nd fl: reconfigure powder room. add 1 new skylight reconfigure interior stairsDetails
revision to pa# 2023-0223-2528 & 202307273175 1st fl: relocate wet bar & closet 2nd fl: reconfigure powder room. add 1 new skylight reconfigure interior stairs | $2,000 |
| Feb 23, 2024 | Completed final sign-off Feb 2025 | 1618 36th Av | the work will be including: 1: alter the kitchen and its above roof support. 2: remodel on the (e) 3 restrooms. 3: change and alter the staircase. 4: layout changes. 5: related plumbing and electrical change. 6: reinforce on the (e) structure.Details
the work will be including: 1: alter the kitchen and its above roof support. 2: remodel on the (e) 3 restrooms. 3: change and alter the staircase. 4: layout changes. 5: related plumbing and electrical change. 6: reinforce on the (e) structure. | $250,000 |
| Jan 31, 2024 | Completed final sign-off Jun 2025 | 1815 18th Av | 1st fl - add family rm, 1 bedrm, 1 full bath , powder rm and laundry; add interior stairs; 2nd fl - remodel kitchen and bath, add 1 full bath; add deck @ rear; add roof deckDetails
1st fl - add family rm, 1 bedrm, 1 full bath , powder rm and laundry; add interior stairs; 2nd fl - remodel kitchen and bath, add 1 full bath; add deck @ rear; add roof deck | $28,000 |
| Dec 12, 2023 | Completed final sign-off Jan 2024 | 452 Dellbrook Av | revision to approved pa#202209202756. to flatten part of the rear yard and construct a new retaining wall less than 4 feet.Details
revision to approved pa#202209202756. to flatten part of the rear yard and construct a new retaining wall less than 4 feet. | $5,000 |
| Aug 1, 2023 | Completed final sign-off Oct 2023 | 1719 43rd Av | to comply with nov# 20310139, front setback: new concrete driveway, landscape and permeable surface. (n) 18" high stem wall on north side. new brick wall fence to match height of front (e) post 4'Details
to comply with nov# 20310139, front setback: new concrete driveway, landscape and permeable surface. (n) 18" high stem wall on north side. new brick wall fence to match height of front (e) post 4' | $15,000 |
| Jul 27, 2023 | Completed final sign-off Mar 2025 | 1454 25th Av | to add a 408sqft rooftop on the roof and install new waterproofing for the whole roof. revision to an existing building permit pa# 202302232528. install roof hatch in lieu of penthouse per ab-057.Details
to add a 408sqft rooftop on the roof and install new waterproofing for the whole roof. revision to an existing building permit pa# 202302232528. install roof hatch in lieu of penthouse per ab-057. | $20,000 |
| Jul 20, 2023 | In progress issued Aug 2025 | 379 Naples St | erect a 3 story bldg, 3 dwellings with no basement type 5b under sb9 program.Details
erect a 3 story bldg, 3 dwellings with no basement type 5b under sb9 program. | $890,000 |
| Jun 27, 2023 | Completed final sign-off Dec 2023 | 1719 43rd Av | revision to permit 202302232495. change layout for 2/f bathroom and g/f under stair closet. switch door and window location at g/f at rear.Details
revision to permit 202302232495. change layout for 2/f bathroom and g/f under stair closet. switch door and window location at g/f at rear. | |
| Jun 12, 2023 | Completed final sign-off Jun 2023 | 1331 Vicente St | revision to bpa# 202210073974. replace furnace for 1/f with hydronic heat system for 1/f and 2/f. shown delta #2.Details
revision to bpa# 202210073974. replace furnace for 1/f with hydronic heat system for 1/f and 2/f. shown delta #2. | |
| Jun 8, 2023 | Completed final sign-off Jan 2025 | 1756 14th Av | remodel one kitchen in kind, approx 90 sfDetails
remodel one kitchen in kind, approx 90 sf | $35,000 |
| May 12, 2023 | Completed final sign-off Dec 2023 | 1719 43rd Av | structural revision to permit 202302232495. keep the kitchen in the original location; add new footing due to relocation of post adjacent to stairwayDetails
structural revision to permit 202302232495. keep the kitchen in the original location; add new footing due to relocation of post adjacent to stairway | |
| Apr 5, 2023 | Completed final sign-off Jun 2023 | 379 Naples St | repair front balcony, replace the post supporting balcony - less than 50% repair. replace (2) windows in the front that are missing glasses with double-hung aluminum clad wood windows. repair the siding facing backyard. post will be replace in kind, same size.Details
repair front balcony, replace the post supporting balcony - less than 50% repair. replace (2) windows in the front that are missing glasses with double-hung aluminum clad wood windows. repair the siding facing backyard. post will be replace in kind, same size. | $10,000 |
| Mar 17, 2023 | Completed final sign-off Apr 2025 | 1756 14th Av | 1/f: convert garage to 2 media rooms. relocate bath, laundry, add bath, media room, wet bar and 1 bedroom. 2/f: reconfigure kitchen, dining, living room. relocate bath and interior stairs. remodel bedrooms, add bath and powder room. add skylights and roof deck. in-fill curb cut.Details
1/f: convert garage to 2 media rooms. relocate bath, laundry, add bath, media room, wet bar and 1 bedroom. 2/f: reconfigure kitchen, dining, living room. relocate bath and interior stairs. remodel bedrooms, add bath and powder room. add skylights and roof deck. in-fill curb cut. | $196,000 |
| Feb 23, 2023 | Completed final sign-off Dec 2023 | 1719 43rd Av | relocate e kitchen & remove a structural wall, to add 2 bathrooms & a full bath @ 2nd flr, add new family rm, full bath & laundry area, relocate & replace w/h, replace e furnace to floor radiant heater, replace e slab on grade.Details
relocate e kitchen & remove a structural wall, to add 2 bathrooms & a full bath @ 2nd flr, add new family rm, full bath & laundry area, relocate & replace w/h, replace e furnace to floor radiant heater, replace e slab on grade. | $113,000 |
| Feb 23, 2023 | Completed final sign-off Mar 2025 | 1454 25th Av | adding 2 bathrooms to the rear of 1/f, complete interior remodel on 2/f. convert 1st flr storage into habitable space to include 1 bedrooms, 1 office and 2 bathrooms.Details
adding 2 bathrooms to the rear of 1/f, complete interior remodel on 2/f. convert 1st flr storage into habitable space to include 1 bedrooms, 1 office and 2 bathrooms. | $380,000 |
| Dec 23, 2022 | Completed final sign-off Apr 2023 | 1181 Ocean Av | remodel tea house equipment, relocate outlets, interior painting, repair filter water line.(e) havc system to remainDetails
remodel tea house equipment, relocate outlets, interior painting, repair filter water line.(e) havc system to remain | $2,000 |
| Oct 25, 2022 | Completed final sign-off Jan 2023 | 3848 California St | revision to pa# 202206216707. 1st fl convert playroom to family room. add storage under stairs (interior). and window revision at rear.Details
revision to pa# 202206216707. 1st fl convert playroom to family room. add storage under stairs (interior). and window revision at rear. | |
| Oct 7, 2022 | Completed final sign-off Jun 2023 | 1331 Vicente St | remove family room and toliet room. install 2 bed rooms and 2 bath rooms, remodeling (e) bathroom, add 1 bath room and 1 toielet room, relocate kitchen interrior stairs, add 2nd fl. roof deck and sky lightDetails
remove family room and toliet room. install 2 bed rooms and 2 bath rooms, remodeling (e) bathroom, add 1 bath room and 1 toielet room, relocate kitchen interrior stairs, add 2nd fl. roof deck and sky light | $180,000 |
| Sep 20, 2022 | Completed final sign-off Jan 2024 | 452 Dellbrook Av | construct rear deck connects 2nd floor, convert 1st floor storage into habitable space to include 1 master suite and 1 powder room. complete remodel on 2nd floor. windows at the front to be wood aluminum clad or architectual grade aluminum.Details
construct rear deck connects 2nd floor, convert 1st floor storage into habitable space to include 1 master suite and 1 powder room. complete remodel on 2nd floor. windows at the front to be wood aluminum clad or architectual grade aluminum. | $150,000 |
| Sep 19, 2022 | Completed final sign-off Jun 2023 | 601 Kearny St | revison to approved pa# 2019-0830-0378; reconfigure layout and remodel bath room per planDetails
revison to approved pa# 2019-0830-0378; reconfigure layout and remodel bath room per plan | $16,000 |
| Jun 21, 2022 | Completed final sign-off Jan 2023 | 3848 California St | rev pa202108247057: 1/f: reconfigure bathroom layout. 2/f: reconfigure kitchen layout. 3/f: new electrical fireplace.Details
rev pa202108247057: 1/f: reconfigure bathroom layout. 2/f: reconfigure kitchen layout. 3/f: new electrical fireplace. | |
| Mar 25, 2022 | Completed final sign-off Aug 2022 | 1515 28th Av | structural revision to pa# 202201186184. new foot along line 2 between a&c. new footing along line aDetails
structural revision to pa# 202201186184. new foot along line 2 between a&c. new footing along line a | $2,500 |
| Mar 11, 2022 | Completed final sign-off Aug 2022 | 1515 28th Av | rev to pa 202201186184,Details
rev to pa 202201186184, | $2,000 |
| Jan 18, 2022 | Completed final sign-off Aug 2022 | 1515 28th Av | 1st fl: add 1 bedroom, 2 full bath, home office & family room. 2nd fl: remodel kitchen, bathroom, & add 1 full bath. reconfigure interior stairs. add roof deck.Details
1st fl: add 1 bedroom, 2 full bath, home office & family room. 2nd fl: remodel kitchen, bathroom, & add 1 full bath. reconfigure interior stairs. add roof deck. | $160,000 |
| Aug 24, 2021 | Completed final sign-off Jan 2023 | 3848 California St | to comply with nov/complaint # 201966503 & 202173214. revision to no-plan pa# 202007089794. 1st fl add 1.5 bath, playroom, 1 bedroom & mechanical room. 2nd fl total remodel & add 1 full bath. 3rd fl total remodel & add 1 full bath. (n) roof deck. siding repair at front & rear. replace front windows.Details
to comply with nov/complaint # 201966503 & 202173214. revision to no-plan pa# 202007089794. 1st fl add 1.5 bath, playroom, 1 bedroom & mechanical room. 2nd fl total remodel & add 1 full bath. 3rd fl total remodel & add 1 full bath. (n) roof deck. siding repair at front & rear. replace front windows. | $200,000 |
| Aug 16, 2021 | Completed final sign-off Jan 2022 | 1020 Leavenworth St | revision to extg app# 202106253226. fire, smoke and water damage repair. added details to repair fire rated ceilings. added plywood added details per plan.Details
revision to extg app# 202106253226. fire, smoke and water damage repair. added details to repair fire rated ceilings. added plywood added details per plan. | $340,000 |
| Jun 25, 2021 | Completed final sign-off Jan 2022 | 1020 Leavenworth St | repair fire damaged area, repaint damaged walls, install new kitchen cabinets, change plumbing from galvanized to copper, bring electrical/plumbing up to code. work @ (3) units, (1) kitchen remodelDetails
repair fire damaged area, repaint damaged walls, install new kitchen cabinets, change plumbing from galvanized to copper, bring electrical/plumbing up to code. work @ (3) units, (1) kitchen remodel | $34,000 |
| Nov 25, 2020 | Expired or cancelled expired Jul 2026 | 1270 La Playa | replace 7 windows not visible from st, same size, material & location. 5 windows in unit 301, 2 windows in unit 302Details
replace 7 windows not visible from st, same size, material & location. 5 windows in unit 301, 2 windows in unit 302 | $2,000 |
| Oct 13, 2020 | Completed final sign-off Jul 2021 | 60 Rice St | 1st floor: construct 2 new bedrooms, 1 full bath, home office, & laundry room. widen garage door from 8 to 9 ft in width and replace with wood garage door with upper lites (no change in height of garage opening); no other workDetails
1st floor: construct 2 new bedrooms, 1 full bath, home office, & laundry room. widen garage door from 8 to 9 ft in width and replace with wood garage door with upper lites (no change in height of garage opening); no other work | $50,000 |
| Oct 2, 2020 | Expired or cancelled expired Jul 2026 | 1270 La Playa | comply w/nov#202013641. repair of fire in 3f & repair at all floors where all inerior finishes including walls & ceilings are removed due to smoke & water damage. (e) framing on 1f where framing has been exposed have been strengthened accordingly. all other units at every fl has smoke & water damageDetails
comply w/nov#202013641. repair of fire in 3f & repair at all floors where all inerior finishes including walls & ceilings are removed due to smoke & water damage. (e) framing on 1f where framing has been exposed have been strengthened accordingly. all other units at every fl has smoke & water damage | $2,000,000 |
| Feb 19, 2020 | Expired or cancelled expired May 2026 | 15 Duboce Av | change of use fro s1/b to f-1/b. install new non load bearing partition for this space. install 2 new ada restroomDetails
change of use fro s1/b to f-1/b. install new non load bearing partition for this space. install 2 new ada restroom | $20,000 |
| Nov 1, 2018 | Completed final sign-off Aug 2019 | 12 10th St | propose of drink/beverages store (tea box), t.i.: to add ada restroom, add kitchen and washing area, add counter service area, extend soffit above kitchen and service area, include new lighting, new plumbing and duct work. maher n/a.Details
propose of drink/beverages store (tea box), t.i.: to add ada restroom, add kitchen and washing area, add counter service area, extend soffit above kitchen and service area, include new lighting, new plumbing and duct work. maher n/a. | $60,000 |