Alex Yao Chen
- Listed as
- architect, engineer
- Firm
- Yao Chen Architecture Studio
- Based in
- Fremont
- On San Francisco permits
- Dec 2019 to Feb 2026
38 permits since 2000 (architect on 37 permits, engineer on 1 permit): 22 completed, 4 in progress, 9 never finaled, 3 expired 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 |
|---|---|---|---|---|---|
| Feb 26, 2026 | In progress filed Feb 2026, not yet issued | 244 Napoleon St | Bauman Landscape & Construction Inc. | to comply with nov#202536112: partial demolition of structure at the north. new ada bathroom.Details
to comply with nov#202536112: partial demolition of structure at the north. new ada bathroom. | $8,000 |
| Jul 29, 2025 | In progress filed Jul 2025, not yet issued | 749 09th Ti St | tenant improvement to existing ymca kitchen by adding a type-1 vent hood 8'long and hung from the roof structure. placement of hood exhaust fan and mau at the existing roof.Details
tenant improvement to existing ymca kitchen by adding a type-1 vent hood 8'long and hung from the roof structure. placement of hood exhaust fan and mau at the existing roof. | $200,000 | |
| Aug 28, 2024 | Completed final sign-off Feb 2025 | 17 25th North Av | change the (e) office to (n) laundry room with (n) closet, w&d hookups and electrical outlets. scope includes (n) utility sink and under counter fridge.Details
change the (e) office to (n) laundry room with (n) closet, w&d hookups and electrical outlets. scope includes (n) utility sink and under counter fridge. | $15,000 | |
| Sep 21, 2023 | In progress issued Feb 2024 | 5315 Mission St | Youda Builders Inc | unit c: for abe compliance program per ordinance 51-16, abe# 201911188334, replace door threshold w/max 1/2" height and 1/4" bevel, add push button to main entrance, replace door knob to lever-hdl at entry door side, adjust entry landing to 2% max slope.Details
unit c: for abe compliance program per ordinance 51-16, abe# 201911188334, replace door threshold w/max 1/2" height and 1/4" bevel, add push button to main entrance, replace door knob to lever-hdl at entry door side, adjust entry landing to 2% max slope. | $8,000 |
| Jun 12, 2023 | Never finaled filed Jun 2023, never issued | 4634 25th St | a new addition (310 sf) on the basement level to infill the existing extension toward the rear yard, roof over basement addition become deck access from the street level/first floor.Details
a new addition (310 sf) on the basement level to infill the existing extension toward the rear yard, roof over basement addition become deck access from the street level/first floor. | $80,000 | |
| Apr 13, 2023 | Completed final sign-off Apr 2024 | 666 Monterey Bl | Buildcorp Inc | excavate to create storage area at the ground/first floor install new partitions to create power room and storage area-unconditional area. relocate washer, dryer, furnace and water boiler.Details
excavate to create storage area at the ground/first floor install new partitions to create power room and storage area-unconditional area. relocate washer, dryer, furnace and water boiler. | $60,000 |
| Mar 7, 2023 | Completed final sign-off Oct 2024 | 1426 Yosemite Av | replace corrugated metal panel siding with new stucco siding. change facade profile to improve curbside appealDetails
replace corrugated metal panel siding with new stucco siding. change facade profile to improve curbside appeal | $150,000 | |
| Mar 2, 2023 | Completed final sign-off Aug 2023 | 3515 20th St | storefront renovation at existing storefrontDetails
storefront renovation at existing storefront | $3,000 | |
| Jan 17, 2023 | Expired or cancelled expired Feb 2026 | 130 Grand View Av | addtion of bump out to the street level garage which adds 87sf of area to the garage, propose 3 roll-up garage doors facing the street, the new garage bump out only single story with class a roofing area, add 2 sconce lights for exterior illumination.replace drivewayDetails
addtion of bump out to the street level garage which adds 87sf of area to the garage, propose 3 roll-up garage doors facing the street, the new garage bump out only single story with class a roofing area, add 2 sconce lights for exterior illumination.replace driveway | $8,000 | |
| Dec 21, 2022 | Completed final sign-off Feb 2023 | 1555 California St | Youda Builders Inc | 1. replace door threshold w/ max 1/2" ht 1/4" bevel. 2. add new ada push buttons to business entrance. 3. replace door knob to lever at the int door. 4. adjust entry landng to 2% max slope. to applu accessible business entrance program. abe:201807231712Details
1. replace door threshold w/ max 1/2" ht 1/4" bevel. 2. add new ada push buttons to business entrance. 3. replace door knob to lever at the int door. 4. adjust entry landng to 2% max slope. to applu accessible business entrance program. abe:201807231712 | $5,000 |
| Dec 15, 2022 | Never finaled issued May 2023, no final | 1540 Polk St | Youda Builders Inc | to comply with the accessible business entrance program abe #202209164498. 1) replace door threshold witth max 1/2" height. 2) new 1:20 slope ramp. 3) new ada push bottom to the main business entrance.Details
to comply with the accessible business entrance program abe #202209164498. 1) replace door threshold witth max 1/2" height. 2) new 1:20 slope ramp. 3) new ada push bottom to the main business entrance. | $3,000 |
| Dec 15, 2022 | Never finaled issued Dec 2022, no final | 1544 Polk St | Youda Builders Inc | to comply with the accessible business entrance program abe #202209214500. ada entrance apply for technical infeasibility.Details
to comply with the accessible business entrance program abe #202209214500. ada entrance apply for technical infeasibility. | $3,000 |
| Dec 15, 2022 | Completed final sign-off Apr 2023 | 1542 Polk St | Youda Builders Inc | to comply with the accessible business entrance program abe #202209164499. 1) new ada push bottom to the main business entrance. 2) replace door threshold witth max 1/2" height.Details
to comply with the accessible business entrance program abe #202209164499. 1) new ada push bottom to the main business entrance. 2) replace door threshold witth max 1/2" height. | $3,000 |
| Nov 21, 2022 | Completed final sign-off Jan 2024 | 624 Fillmore St | Martin Paul Duggan Contracting | interior remodel kitchen and bathDetails
interior remodel kitchen and bath | $20,000 |
| Nov 10, 2022 | In progress issued May 2025 | 2200 Keith St | L & D Devlopment.Inc. | tenant improvement to (e) office/warehouse by building a 2nd level to the open warehouse area, w/ new stair going to the new 2nd fl office/storage area. maintain 15ft from 1st fl finish level to ceiling as required. no exterior work. all foundation/functional work only pertaining to the interior.Details
tenant improvement to (e) office/warehouse by building a 2nd level to the open warehouse area, w/ new stair going to the new 2nd fl office/storage area. maintain 15ft from 1st fl finish level to ceiling as required. no exterior work. all foundation/functional work only pertaining to the interior. | $500,000 |
| Aug 30, 2022 | Never finaled filed Aug 2022, never issued | 3621 Divisadero St | P 3 Construction & Remodeling Inc | legalize as built to pa# 200008117637. wall layout changes to 1st fl. remove stair to 2nd fl. create 1 office with 1-hr rated wall for separation to garage. replace approved deck with 2 juliet balconies. omit stair to 3rd fl. add rooms to playroom on 3rd fl.Details
legalize as built to pa# 200008117637. wall layout changes to 1st fl. remove stair to 2nd fl. create 1 office with 1-hr rated wall for separation to garage. replace approved deck with 2 juliet balconies. omit stair to 3rd fl. add rooms to playroom on 3rd fl. | $5,000 |
| Aug 4, 2022 | Completed final sign-off May 2024 | 60 Clipper Cove Wy | Cal C A D E Construction Inc | renovate (e) storage room by adding a 2-hour fire rated wall to divide a room space of about 1500 sf into (2) rooms, server (716 sf) & storage rooms (770 sf).Details
renovate (e) storage room by adding a 2-hour fire rated wall to divide a room space of about 1500 sf into (2) rooms, server (716 sf) & storage rooms (770 sf). | $20,000 |
| Jul 26, 2022 | Completed final sign-off Oct 2022 | 3621 Divisadero St | P 3 Construction & Remodeling Inc | revision to pa 2022-0608-5840 legalize (e) 1 hr rated window @ lightwell and infill interior window frame w/wood framing and 5/8" type x gyp bd. to comply with nov 202289028Details
revision to pa 2022-0608-5840 legalize (e) 1 hr rated window @ lightwell and infill interior window frame w/wood framing and 5/8" type x gyp bd. to comply with nov 202289028 | $3,500 |
| Jun 13, 2022 | Completed final sign-off Jan 2024 | 1350 Marin St | Alex Builder Inc | the front entrance to be modified to accommodate an accessible ramp with handril to be in compliance. the (e) ada toilet to be verified for compliance based on provided detail sheet a-208. ** maher: n/a ** to comply with abe program, abe# 202204190500.Details
the front entrance to be modified to accommodate an accessible ramp with handril to be in compliance. the (e) ada toilet to be verified for compliance based on provided detail sheet a-208. ** maher: n/a ** to comply with abe program, abe# 202204190500. | $10,000 |
| Jun 10, 2022 | Completed final sign-off Jan 2023 | 1555 Burke Av | Polytec Construction Company Inc | add a food prep area to an (e) tenant space the new food prep area is carved out rom the storage area (1) 3- comp sink 2 warm tables,ss prep-table, 1 hand sinkDetails
add a food prep area to an (e) tenant space the new food prep area is carved out rom the storage area (1) 3- comp sink 2 warm tables,ss prep-table, 1 hand sink | $32,000 |
| Jun 9, 2022 | Completed final sign-off Oct 2022 | 4037 24th St | Golden One Construction Inc | front bldg: change of use from (e) retail to day care facility (3-4 year): (n) ada push bottom for main door, (n) opening on (e) wall. (n) ada child restroom. (n) ada drinking fountain. remodel (e) ada restroom like for like.Details
front bldg: change of use from (e) retail to day care facility (3-4 year): (n) ada push bottom for main door, (n) opening on (e) wall. (n) ada child restroom. (n) ada drinking fountain. remodel (e) ada restroom like for like. | $46,000 |
| May 3, 2022 | Completed final sign-off Oct 2022 | 4634 25th St | Blue Birds Construction Inc | proposed renovation to the ground floor and basement level of unit 4634 25th st. g/f: change window facing rear yard to patio door, and adsd juliet balcony. b/f: add new bath, replace old windows with new single hung window.Details
proposed renovation to the ground floor and basement level of unit 4634 25th st. g/f: change window facing rear yard to patio door, and adsd juliet balcony. b/f: add new bath, replace old windows with new single hung window. | $20,000 |
| Apr 22, 2022 | Completed final sign-off Apr 2023 | 1040 Columbus Av | Youda Builders Inc | to comply with abe ord 51-16. add new ada push buttons to the main business entrance. replace door threshold with max 1/2" height. ref abe 202209164496.Details
to comply with abe ord 51-16. add new ada push buttons to the main business entrance. replace door threshold with max 1/2" height. ref abe 202209164496. | $3,000 |
| Apr 22, 2022 | Completed final sign-off Dec 2023 | 820 Clement St | Youda Builders Inc | to comply with abe ord 51-16. replace door threshold wtih 1/2" height. add new ada push buttons to the main business entrance. ref abe 202209164494.Details
to comply with abe ord 51-16. replace door threshold wtih 1/2" height. add new ada push buttons to the main business entrance. ref abe 202209164494. | $3,000 |
| Apr 22, 2022 | Completed final sign-off Nov 2022 | 528 Grant Av | Youda Builders Inc | add new ada push button to the main business entrace. abe 202209214492.Details
add new ada push button to the main business entrace. abe 202209214492. | $5,000 |
| Apr 22, 2022 | Completed final sign-off Dec 2023 | 959 Taraval St | Youda Builders Inc | to comply with abe ord 51-16. add new ada push bottom to the main business entrance. replace door threshold with max 1/2" heights. ref abe 202209164495.Details
to comply with abe ord 51-16. add new ada push bottom to the main business entrance. replace door threshold with max 1/2" heights. ref abe 202209164495. | $3,000 |
| Jan 3, 2022 | Never finaled filed Jan 2022, never issued | 2200 Jennings St | to erect a 1-story, type 5a, warehouse building w/o basement. the project would include 4 loading docks access from jennings st, and 2 loading docks one each access from yesemote ave and wallace ave. ** 6 existing parcels to be merged into one parcel throuth lot line adjustment application **Details
to erect a 1-story, type 5a, warehouse building w/o basement. the project would include 4 loading docks access from jennings st, and 2 loading docks one each access from yesemote ave and wallace ave. ** 6 existing parcels to be merged into one parcel throuth lot line adjustment application ** | $500,000 | |
| Jul 15, 2021 | Completed final sign-off Oct 2022 | 4632 25th St | Blue Birds Construction Inc | revision to pa 202012211482. relocate kitchen on the 1st flr, unit 4632. relocate master bathroom on the 3rd flr, unit 4634. revision to kitchen layout on the 2nd flr, unit 4634. remove scope to basement level-no work-unit 4632.Details
revision to pa 202012211482. relocate kitchen on the 1st flr, unit 4632. relocate master bathroom on the 3rd flr, unit 4634. revision to kitchen layout on the 2nd flr, unit 4634. remove scope to basement level-no work-unit 4632. | |
| Jun 7, 2021 | Completed final sign-off Jul 2024 | 130 Grand View Av | unit 3 interior renovation at 3rd & 4th flrs- remove interior walls on 3rd flr. remove kitchen walls on 4th flr.Details
unit 3 interior renovation at 3rd & 4th flrs- remove interior walls on 3rd flr. remove kitchen walls on 4th flr. | $25,000 | |
| Mar 22, 2021 | Expired or cancelled withdrawn Nov 2023 | 4632 25th St | revision to pa #202010086191: renovate (e) master bedroom on the top floor. extend & infill the master bedroom at the basement level by 1'-7" (350 sq ft) towards the rear yard. roof over basement addition becomes deck - access from street level/first floor.Details
revision to pa #202010086191: renovate (e) master bedroom on the top floor. extend & infill the master bedroom at the basement level by 1'-7" (350 sq ft) towards the rear yard. roof over basement addition becomes deck - access from street level/first floor. | $50,000 | |
| Dec 22, 2020 | Never finaled filed Dec 2020, never issued | 1335 Gilman Av | replace existing front entry stair with new.Details
replace existing front entry stair with new. | $10,000 | |
| Dec 21, 2020 | Completed final sign-off Oct 2022 | 4632 25th St | Blue Birds Construction Inc | 1)renovate extg units by adding/removing non-load bearing walls to improve unit interior layouts. 2 new lighting & electrical layouts. 3)install new hvac unit under seperate permit. 4)replace extg windows and doors.5) add baths at basement & 3rd fl. 6)relocate & renovate (e) bath on 1st & 2nd fl.Details
1)renovate extg units by adding/removing non-load bearing walls to improve unit interior layouts. 2 new lighting & electrical layouts. 3)install new hvac unit under seperate permit. 4)replace extg windows and doors.5) add baths at basement & 3rd fl. 6)relocate & renovate (e) bath on 1st & 2nd fl. | $200,000 |
| Oct 16, 2020 | Never finaled issued Oct 2022, no final | 19 Victoria St | Sederap's Drywall Inc. | convert portion of the (e) habitable space on the first floor to adu - per ordinance #95-17.Details
convert portion of the (e) habitable space on the first floor to adu - per ordinance #95-17. | $45,000 |
| Oct 8, 2020 | Expired or cancelled withdrawn Dec 2020 | 4632 25th St | renovate (e) units by adding and removing non-load bearing walls. (n) lighting and electrical layouts. replace (e) windows and doors per plan. add (n) bathrooms at the basement floor and third floor. 5. relocate and renovate (e) bath on 1st and 2nd floor.Details
renovate (e) units by adding and removing non-load bearing walls. (n) lighting and electrical layouts. replace (e) windows and doors per plan. add (n) bathrooms at the basement floor and third floor. 5. relocate and renovate (e) bath on 1st and 2nd floor. | $190,000 | |
| Sep 11, 2020 | Never finaled filed Sep 2020, never issued | 1139 Bacon St | add (n) single story deck (204 sf) on the 2nd fl with staircase going down to the rear yard. replace (e) windows on 2nd fl to sliding doors per plan.Details
add (n) single story deck (204 sf) on the 2nd fl with staircase going down to the rear yard. replace (e) windows on 2nd fl to sliding doors per plan. | $40,000 | |
| Dec 27, 2019 | Never finaled filed Dec 2019, never issued | 650 Eucalyptus Dr | convert portion of (e) garage space to an adu (2 bedrooms) of 592 sq ft per ordiance #162-16Details
convert portion of (e) garage space to an adu (2 bedrooms) of 592 sq ft per ordiance #162-16 | $85,000 | |
| Dec 23, 2019 | Completed final sign-off Jan 2022 | 2567 31st Av | comply violation 201613524. legalization-convert (e) storage room at 2/fl to powder room. add wet-bar at study room on 3/fl.Details
comply violation 201613524. legalization-convert (e) storage room at 2/fl to powder room. add wet-bar at study room on 3/fl. | $5,000 | |
| Dec 23, 2019 | Completed final sign-off Mar 2022 | 2567 31st Av | add units per 95-17. replace portion of (e) driveway to impervious pavers. convert partial of 1/fl space into adu per plan. add new wall at garage to create hall entry for adu.Details
add units per 95-17. replace portion of (e) driveway to impervious pavers. convert partial of 1/fl space into adu per plan. add new wall at garage to create hall entry for adu. | $12,000 |