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Baek Young Ahn

Architect · Baek Young Ahn, Aia · Millbrae

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeArchitect C-19749First issued Feb 16, 1989, expires Sep 30, 2027.

Source: DCA license roster, retrieved Nov 5, 2026

Verify on DCA License Search

Any board discipline?
None found.

We searched the California Architects Board enforcement list on Nov 5, 2026.

Worked in San Francisco?
21 permits since 2006, 21 in the last 5 years. Latest filed Aug 5, 2022.
What kind of projects?
Commercial or tenant improvement 9 · Home remodel 4 · Addition 4
How long do their permits take?
Addition: 26 months. City typical for the same review: 12 months.

Permits filed each year

San Francisco permits by the year they were filed. The last 5 years are in blue.

What are you planning?

Pick your kind of project to see their permits for it.

Permits
24 permits that name Baek Young Ahn, newest first, including 3 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Oct 3, 2023745 Buchanan St

Rev to pa# 2021-0809-6018; remove (n) 2 each doubled door replace (n) 2 each 36x7'6"

Complete
Aug 5, 20221555 Union St #0

Construct roof screen

Approved
Mar 29, 20221918 Lake St

1st fl: horizontal enlargement. add family room & bathroom. 2nd fl: replace existing deck. add stair well and stairs to the first floor. no bldg height increase. no change on front of the building.

Issued
Aug 9, 2021745 Buchanan St

Replace e stairs and wheelchir lifts. remodel e restrooms for accessibility. remodel office area and kitchen. related mechanical, plumbing, elec works. reconfigure attic. windows sep permit

Complete
May 21, 20211555 Union St #0

Remove 2x2 wood on front of the building. construct new wall in front of the building with parapet.

Withdrawn
Dec 19, 20194018 03rd St

Erect 4-story, 1 basement, type 5a, 8 dwelling units apartment, office & warehouse building (cross street sam jordans way/galvez ave). maher ordinance applies to this project.

Filed
Oct 9, 20181555 Union St #0

Remodel reception area. remodel bathrooms & add accessible restroom.

Cancelled
Oct 25, 20171918 Lake St

Addition of family rm on 1st flr. replace (e) deck on 2nd flr. add 4th flr with deck. 1 new bedroom, 2 new bathroom. no bldg height increase. no change on front side of bldg.

Withdrawn
Aug 10, 2017658 Cole St

Remodel existing bathroom, add one bathroom, add closets.

Complete
Sep 29, 2016500 Sutter St

#101: remove interior partition, install display fixture and counter, install telephone and electrical outlets. sprinklers, f/a under separate permit.

Complete
Jun 8, 2016129 Lake Merced Hill St South St

Revision to pa #201507020527: omit filling the area by front entry, replace all existing sheetrock, no change to existing master closets.

Complete
May 19, 2016140 32nd Av

Addition on third floor. for expansion of (e) family room. add toilet and wet bar. no work on other floors.

Cancelled
Jan 8, 2016449 Powell St #0

3/f -remove existing bar, build new bar & walls occupant load recalculated to 254 total occupants 01/08/16jh

Complete
Dec 17, 20151514 25th Av

1st floor: bathroom remodel & addition of bedroom & storage in garage. 2nd floor: kitchen & bathroom remodel. 3rd floor: addition with new kitchen & bathroom. remove (e) stair & add new stair to 3rd floor.

Cancelled
Jul 2, 2015129 Lake Merced Hill St South St

Build a laundry room, remodel kitchen & bath, closet remodel , no exterior change.

Complete
May 1, 2015449 Powell St #0

Build one hour rated shaft and install dumbwaiter with 1 hour rated access door. no change on exterior. sprinklers under sep. permit. shaft on 2nd & 3rd floors.

Complete
Apr 17, 20153120 Geary Bl

Remove extg driveway and install wheelchair lift, replace extg doors with new storefront window /door, install interior partition and doors. remove extg bathroom and build accessible restroom. related elect. work including power and lighting.install nfpa 13 automatic sprinkler system throughout

Cancelled
Mar 12, 20153120 Geary Bl

Single story addition of 924 sq ft. add wall element at front of bldg. install roof top mechanical unit, ducts and registers. new bathroom with shower. related elec. work including power and lighting.

Withdrawn
May 21, 20121700 Post St

To comply w/complaint #200670983 - remodel existing restrooms, build bar & ceiling above the bar, install bbw grills & hoods, replace kitchen equipment, install light fixtures.

Issued
Jan 27, 20092950 Lake St

Reroofing,replace windows in kind, doors and new garage door. add insulation, new flooring, kitchen, baths, and laundry remodel, new partition ,new radiant heating system, new plumbing fixtures, elec panels, outlets, light fixtures, and smoke alarms. new windows will be wood, same as (e) windows.

Complete

Sources: DataSF i98e-djp9, 3pee-9qhc, retrieved Nov 5, 2026. Names on permits are matched to licenses by license number and name; unmatched records are not shown.

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