CheckMyDesigner

William Wei-Qiang Liang

Engineer · William Liang · San Francisco

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeStructural Engineer S-5157First issued Jan 25, 2008, 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?
149 permits since 2009, 149 in the last 5 years. Latest filed Oct 23, 2026.
What kind of projects?
Home remodel 75 · Legalize or fix a violation 18 · Addition 15
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: 75 permits in San Francisco

From 2009 to 2026, latest filed Oct 23, 2026.

Time to get a permit

Theirs
Within 1 month
City
Within 1 month

Median from filing to permit, from 71 issued permits filed since 1966; 3 still in review. City is the San Francisco median for the same kind of review, from 24,421 permits.

Where

  • Sunset/Parkside21
  • Outer Richmond10
  • West of Twin Peaks9
  • Excelsior4
Permits
179 permits that name William Wei-Qiang Liang, newest first, including 30 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Oct 27, 2026250 Arleta Av

Rev 202512292888: 1 bed at rear, not 2.door added between porch infill & entry. add sink at prime bath.beds with eero wdws to face street,living/dining/kitchen to face rear yard & new deck. new extr stair at p|l from deck to grade.new deck detail.read siding surfaces to be hardie horz.no cmt plstr.

Filed
Oct 23, 20261059 Montgomery St

Work at 2nd floor unit only: reconfigure and remodel kitchen & full bath; replace window at kitchen and full bath; convert dining room to office; reconfigure living room by removing study room; lower raised floor in study room.

Filed
Oct 23, 20262927 Larkin St #0

Demolish existing damaged rear stairs and rebuild in kind.

Filed
Sep 16, 20262921 Wawona St

To comply with nov. 202183704 - demolish unpermitted roof cover rear roof deck. remove and replace rear roof deck tile finishes. remove and replace rear wall siding above roof deck.

Filed
Sep 4, 20261523 22nd Av

2nd flr: replace 3 windows in e. frame, all non-street facing. ground flr: reconfigure existing living space to include family room, kitchenette with 2 burner cooktop (no oven), bedroom, & full bath. replace horizontal siding finish with stucco at walls facing backyard. replace furnace/water htr

Filed
Aug 29, 202645 Saturn St

Interior remodeling including the creation of new habitable, conditioned space,minor changes to exterior

Filed
Aug 28, 2026135 Clearfield Dr

2/f: reconfigure and remodel kitchen & master bath. g/f: add kitchenette with 2-burner cooktop (no oven) to (e) family room; convert bedroom to master bath.

Issued
Jul 10, 2026611 40th Av

Revision to 202511260478. reconfigure layout of family room, kitchenette, excercise area and full bath. relocate laundry set-up garage. relocate tankless water heater. at 2nd flr, replace (2) windoes and (1) sliding door, all facing backyard.

Issued
Jun 17, 2026175 18th Av

Demolish unpermitted rear deck & stairs and rebuild 3rd floor deck and stairs to rear yard conforming to current code

Complete
Jun 5, 20268 Inverness Dr

G/f only: add laundry room. at (e) family room - add kitchenette with 2 burner cooktop and replace sliding door in (e) frame. at (e) exercise room - replace window in (e) frame, remodel full bathroom with addition of window and conversion of tub to shower.

Issued
Jan 30, 2026221 Magellan Av

Kitchen relocation and remodeling. add 1 new bath. propose 1 new electrical fireplace like for like. replace all windows. replace furnace and water heater.

Complete
Jan 27, 20261118 Geneva Av

Revision to pa# 2025-1107-9151: 2nd fl. convert living room to bed room; remove cement plaster ceiling and walls to facilliate installation of insulation then install gypsum board finish. replace front facing fixed window casement in (e) frame.

Complete
Jan 12, 2026250 Arleta Av

New 1-story addition at rear with 2-bedrooms and roof deck to (e) sfr.

Issued
Nov 26, 2025611 40th Av

2nd fl - shift interior stair toward the front of bldg; remove stairs in lightwell; reconstruct balcony in sunroom. ground fl - infill open space below (e) sunroom to create indoor plant add family room w/kitchenette (2 burner), full bath, exercise room & laundry area; add detached gazebo with ofuro

Reinstated
Nov 14, 2025724 Avalon Av

To comply with nov 202545134 construct concrete retaining wall in backyard - max raise elevation 3 feet - no more

Complete
Nov 7, 20251118 Geneva Av

2nd fl - remove wall between kitchen & dining om, add (1) skylight in kitchen; ground fl - add media room with kitchenette (2 burner), (2) bedrooms & (1) full bath behind 1 car garage

Complete
Nov 4, 2025480 Vienna St

Revision to 202509195676. roof, strenthen roof framing. 3rd fl: rebuild interior stud walls for bathroom and closets, replace window in bath, strenthen ceiling framing in bath. gr fl: perform voluntary plywood trengthening in garage

Complete
Oct 14, 20251394 Alabama St

2/f: kitchen remodel and relocate. bathroom remodel and add one bathroom. add a skylight.

Complete
Sep 30, 2025386 Capistrano Av

Add two skylights to the plan. revision to pa: 202503142264. to comply with 202537411

Complete
Sep 19, 2025480 Vienna St

Demo deteriorated front exterior staircase & rebuild in same configuration; replace garage door in-kind; add header beam above garage door opening; infill (4) windows not visible from street; add operable skylight in kitchen; rebuild entry porch ceiling framing

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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