CheckMyDesigner

Jefferson Chen

Engineer · Enertia Designs · San Francisco

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeCivil Engineer C-57898First issued Feb 20, 1998, expires Jun 30, 2028.

Source: DCA license roster, retrieved Nov 5, 2026

Verify on DCA License Search

Any board discipline?
None found.

We searched the BPELSG enforcement list on Nov 5, 2026.

Worked in San Francisco?
415 permits since 2001, 415 in the last 5 years. Latest filed Oct 20, 2026.
What kind of projects?
Home remodel 176 · Seismic retrofit or foundation 74 · Deck, stairs or patio cover 46
How long do their permits take?
Home remodel: within 1 month. City typical for the same review: within 1 month.

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
541 permits that name Jefferson Chen, newest first, including 126 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Oct 20, 20262545 Greenwich St

Rev 201309177050:remove below-grd storage area.revert garage plate ht to unchanged.revert 1/f plate ht to unchanged.2/f plate ht to be 1ft higher than approved from 30-8 to 31-8. revise 3/f plan on e/s & move roof deck staircase from interior to exterior.

Triage
Sep 30, 2026394 Laidley St

Rev 201612296232: new entry door at garage level. minor shifting of a handful of interior partition walls. removal of 3 non-egress windows and skylights from scope of work.

Triage
Sep 29, 2026254 08th Av

Create new parking space; remove (e) wall in garage, new steel structural beam, wood posts + conc. footings, new partial conc slab.

Issued
Aug 10, 2026859 28th Av

Reply old damaged a framed skylight 5'x10' over exterior lightwell above the steps leading to the front door. will be replaced with 2 x 9.5' squared skylights in the newly framed 5'x10'. not visible from street or facing front.

Issued
Jul 24, 202630 Lopez Av

Revision to 202605271951 for structural framing at door way.

Issued
Jul 1, 20262814 Clay St

Removing (e) barrel vauted garage. install new garage door. rebuild (e) exterior stair from sidewalk to front door with rise and run per code. remove (e) exterior stair on west side. (e) interior stair from level 2 to 3 rebuilt per code under separate permit.

Issued
Jun 18, 2026262 Lexington St

Revision to bpa#202006118454 to include the reconfiguration of meter cabinets at the south elevation per pg&e requirment; reconfigure entry area at the first floor; retain (e) exterior rear deck and stair.

Issued
Jun 11, 2026628 Shotwell St

3rd flr: bathroom 2 (n) bathtub and relocate toilet. bathroom 4 remove partition wall, (n) bathtub and relocate toilet. (n) electrical and plumbing as required at area of work only.

Issued
May 27, 202630 Lopez Av

Convert existing storage to new bed and bath.

Issued
May 20, 2026622 24th Av

1st/f: remodel e) fl space to n) home office, media rm, bath & laundry. wet bar.

Issued
May 15, 20261443 Hudson Av

Revision 202512182101- footing detail to reflect actual field verified condition

Complete
Apr 30, 2026511 Elizabeth St

Revision to 202408219182: reduce scope of work to partial renovation & 242 sf rear yard addition to reduce from 492 sf to 242 sf addition. removal of front facade updates.

Issued
Apr 15, 202620 Blake St

3rd floor (top floor) reconfiguration of kitchen & living room, reconfiguration of rear bedroom to master bedroom & adding new master bath (n) electrical and plumbing as required at rear of work only, adding new roof deck.

Issued
Apr 13, 2026125 Alma St

Addition to existing 3rd floor to remodel existing rooms & add new bedroom and balcony.

Issued
Feb 20, 20261443 Hudson Av

Revision to 202512182101: replace e) window with french doors

Issued
Jan 20, 20262627 21st St

Reconstruct front woor stairs to be code compliant. reconstruct rear deck & stairs in kind. replace front 2nd fl wood windows and all rear windows. front wood windows to match existing style & size. install new hardie siding at rear facade. kitchen and bathroom remodel

Issued
Dec 17, 202520 Medau Pl

Revision 202406275426 1st fl e bath to be relocated. e door at hallway removed, remove wall at kitchen/dining rm. 2nd fl: door to be removed at hallway and kitchen. dryrot replacement.

Issued
Dec 1, 2025976 Noe St

1st fl: existing posts at garage to be removed. 3rd fl: existing portion of wall between kitchen and dining room to be removed.

Complete
Oct 31, 20251301 41st Av

New home lift from 1st and 2nd flr within (e) building.

Complete
Oct 14, 2025108 Chattanooga St

Rear horiz. addition & infill @ 2nd & 3rd flrs; expansion of conditioned living space to 1st flr toliving space to the 1st flr to include guest/exercise rm & bath; reconfigure rear kitchen & dining areas & convert full bath to powder rm @ 2nd fl; renova & reconfigure 3rd flr bedrms & bath to add.

Issued

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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