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
- 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
Time to get a permit
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
Most recent
- 2122 22nd AvAdd 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.Feb 19, 2025Complete
- 1865 23rd AvInterior 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 diningNov 21, 2024Issued
- 231 Stratford DrInterior remodeling. replace (e) windows per plan. reconfigure rear stair access to the backyard on the mainfloor.Dec 4, 2023Complete
- 51 Wawona StInterior 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 yardApr 28, 2023Cancelled
- 2407 Clement St2nd & 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.Nov 25, 2019Complete
| Filed | Project | Type | Status | Time to permit | Open |
|---|---|---|---|---|---|
| Sep 5, 2026 | 665 Colby St Erect new 1-story type vb detached adu in rear yard. Filed | New building | Filed | — | |
| Aug 12, 2025 | 371 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 | ADU | Complete | 3 months | |
| Feb 19, 2025 | 2122 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 | Home remodel | Complete | Within 1 month | |
| Jan 17, 2025 | 39 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 | Legalize or fix a violation | Complete | 4 months | |
| Nov 21, 2024 | 1865 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 | Home remodel | Issued | 15 months | |
| Aug 12, 2024 | 611 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 | Legalize or fix a violation | Complete | Within 1 month | |
| Dec 4, 2023 | 231 Stratford Dr Interior remodeling. replace (e) windows per plan. reconfigure rear stair access to the backyard on the mainfloor. Complete | Home remodel | Complete | 3 months | |
| Aug 31, 2023 | 2258 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 | Legalize or fix a violation | Complete | 10 months | |
| Apr 28, 2023 | 51 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 | Home remodel | Cancelled | — | |
| Nov 23, 2021 | 1598 A 28th Av Addition a new adu at the first floor. Complete | ADU | Complete | 6 months | |
| Mar 12, 2021 | 1435 41st Av Add new deck at rear yard. Complete | Deck, stairs or patio cover | Complete | 1 month | |
| Nov 25, 2019 | 2407 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 | Home remodelType unconfirmed | Complete | 2 months | |
| Mar 21, 2019 | 1600 36th Av Rev to pa# 201805048220; install hydrolic heathing system to replace gas furnance, no other work scope. Complete | Revision or supplement | Complete | Within 1 month | |
| May 4, 2018 | 1600 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 | Home remodel | Complete | Within 1 month | |
| Jun 23, 2016 | 1738 29th Av Ground floor remodel only: add 1 new full bathroom, one bedroom and play room. relocate the (e) washer/dryer & laundry sink Complete | Home remodel | Complete | 2 months | |
| May 4, 2016 | 1519 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 | Home remodel | Complete | Within 1 month | |
| Jan 27, 2016 | 2241 Balboa St 2nd fl. kitchen remodel, no exterior work. Complete | Home remodel | Complete | Within 1 month | |
| Nov 18, 2015 | 80 Springfield Dr Add new full bathroom @ ground floor. Complete | Home remodel | Complete | Within 1 month | |
| Dec 29, 2014 | 18 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 | Revision or supplement | Complete | Within 1 month | |
| Dec 11, 2014 | 2145 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 | Home remodel | Complete | Within 1 month |
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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