CheckMyDesigner

Junjian Lao

Engineer · Lao Engineering · San Francisco

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeCivil Engineer C-82114First issued Dec 18, 2013, expires Mar 31, 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?
28 permits since 2006, 28 in the last 5 years. Latest filed Sep 5, 2026.
What kind of projects?
Home remodel 11 · Legalize or fix a violation 5 · Addition 4
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.

Home remodel: 11 permits in San Francisco

From 2014 to 2025, latest filed Feb 19, 2025.

Time to get a permit

Theirs
Within 1 month
City
Within 1 month

Median from filing to permit, from 10 issued permits filed since 1966. City is the San Francisco median for the same kind of review, from 14,583 permits.

Where

  • Sunset/Parkside6
  • West of Twin Peaks2
  • Outer Richmond2
  • Pacific Heights1
Permits
30 permits that name Junjian Lao, newest first, including 2 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Sep 5, 2026665 Colby St

Erect new 1-story type vb detached adu in rear yard.

Filed
Aug 12, 2025371 A Ellington Av

Addition of a new adu on the 1st fl in acordance with govement code section 6582.2 construction of anew laundry room on the 2nd floor.construction of a 2nd floor deck to access to the rear yard.

Complete
Feb 19, 20252122 22nd Av

Add new media room on 1/f. 2)install barsink in both new media room and (e) family room on 1/f. 3)remodel 2/f bathroom. 4)add a bedroom separation wall on 2/f of (e) rear addition.

Complete
Jan 17, 202539 Majestic Av

Comply with nov 202431394 legalize (e) rear wood landings & stairs; legalize (e) rear sliding door @ 2nd fl. add firewall at property line next to staircase.

Complete
Nov 21, 20241865 23rd Av

Interior reno for 1st & 2nd fl. 1st fl - relocate bathrm, bedrm & laundry; infill internal stiar connects to 2nd fl; 2nd fl - convert bedrm #1 into suite access to new deck @ rear yard. convert part of bedrm #2, relocate bathrm & powder room into office & bathroom. convert bedrm #3 into dining

Issued
Aug 12, 2024611 38th Av

In response to dbi complaint 202425913. add new bathroom and remodel existing kitchen at 2/f. reconfigure existing bathroom at 3/f. no exterior work.

Complete
Dec 4, 2023231 Stratford Dr

Interior remodeling. replace (e) windows per plan. reconfigure rear stair access to the backyard on the mainfloor.

Complete
Aug 31, 20232258 34th Av

In respose to 2022-011286enf enforcement by planning dept. to legalize unauthorized dwelling unit at 1st fl. legalize unpermitted structure due to removal of the (e) beam and post on the 1st fl. front facade remain no change.

Complete
Apr 28, 202351 Wawona St

Interior renovation reconfigure interior layout and add 1 bedroom on 1st floor; re-configure interior layout. eliminate 1 bedroom to create 1 master suite. relocated interior stairs and extend kitchen. add 3 skylights. add trellis at rear yard

Cancelled
Nov 23, 20211598 A 28th Av

Addition a new adu at the first floor.

Complete
Mar 12, 20211435 41st Av

Add new deck at rear yard.

Complete
Nov 25, 20192407 Clement St

2nd & 3rd floor: replace all window in kind with double pane windows, visible from the street to be wood windows. all others to be vinyl. update existing electrical line & fixtures at 3rd floor unit. relayout fixtures at the existing 3rd floor bathroom & add new full bath on 3rd floor.

Complete
Mar 21, 20191600 36th Av

Rev to pa# 201805048220; install hydrolic heathing system to replace gas furnance, no other work scope.

Complete
May 4, 20181600 36th Av

1st fl: convert existing office room to new bedroom. relocate bathroom and closet. 2nd fl: remove the non-bearing wall between kitchen & dining area. add new tube skylight. relocate the toilet and add new window at lightwell location.

Complete
Jun 23, 20161738 29th Av

Ground floor remodel only: add 1 new full bathroom, one bedroom and play room. relocate the (e) washer/dryer & laundry sink

Complete
May 4, 20161519 Noriega St

1st floor remodel only: add (n) exercise room. ocnvert (e) storage to (n) home office room. add (n) half bath. elarge (e) two windows @ rear side. add (n) laundry sink @ (e) laundry room. replace (e) storage water heaters to (n) gas tankless water heaters.

Complete
Jan 27, 20162241 Balboa St

2nd fl. kitchen remodel, no exterior work.

Complete
Nov 18, 201580 Springfield Dr

Add new full bathroom @ ground floor.

Complete
Dec 29, 201418 Montezuma St

Revision to pa #201411131351: eliminate window in (n) master bedrm on 2nd flr @ front & right elevation. change 2 skylights in (e) bedroom on 2nd flrto frosted glass skylights. no structural change. other details no change follow approved plan.

Complete
Dec 11, 20142145 California St #1

#1 interior remodel: replace all wood windows in kind, remove (e) int plaster & lath & replace with 5/8 type"x" gyp board. enlarge shower location @ bathroom #2, relayout fixtures @ bath #1, kitchen remodel, update (e) elec lines & fixtures.

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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