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Winnie Hing-Wan Tam

Architect · Winnie Tam · Redwood City

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeArchitect C-31166First issued Jun 12, 2007, expires Jun 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?
12 permits since 2009, 12 in the last 5 years. Latest filed Dec 5, 2022.
What kind of projects?
Addition 3 · Legalize or fix a violation 3 · ADU 2
How long do their permits take?
Addition: 17 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
16 permits that name Winnie Hing-Wan Tam, newest first, including 4 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Jun 6, 2025324 10th Av

Revision to main permit#202210114156. modification of rear outdoor deck only.change stairway orientation 90 degrees to run towrds rear yeard.depth of new deck minor extended 3'10" more than approved.no change to previously approved interior floor plan layouts.

Issued
Apr 11, 2025374 Prospect Av

Revision to pa # 202210184537. no change to arch floorplan. replace 20+ ft of brick foundation w/ new. re-frame 3 substandard walls and replace floor beams. add fire rating to wall less than 5 ft from property line.

Issued
Dec 5, 2022451 10th Av

Remodel(e)2/f unit interior spaces,adding a(n)bath,extend a(n)22 sf bay window @ rear yard side to make a bedroom suite.expand(e) 2/f unit vertically to (e)g/f interior to create a 2 story unit.remodel(e)g/fspaces to include a (n)master bedroom & bath.

Issued
Oct 18, 2022376 Prospect Av

Comply w/ nov #202062071,202056562,202056561: #378 3/f-relocate exterior access stairs to side yard. #376 2/f-add half-bath at rear. g/f legalize (n) j-adu (487 sf). remove (e) non-code compliant 2/f kitchen & deck. extend g/f into crawl space. leveled floor for (n) living/ dining room & (n) bath.

Issued
Mar 11, 2021818 A 24th Av

New adu. remodel (e) unfinished storage and laundry spaces behind garage parking to build a (n) adu unit with full kitchen, (n)living & dining, a bedroom and a bath. extend (e) building end wall further towards rear yard, to add a (n) family room and a master bedroom with bath for the (n) unit.

Complete
Jan 29, 2019446 Chenery St

Rev to pa# 201603041244; (for interior space only, no bldg. envelope change.) 2/f re-layout bedroom suite #3 closet area, add fire place. remove laundry closet from family room, 1/f; re-layout laundry area under staris, extend half-bath area, add coat closet, open up (e) foyer to main space.

Complete
Aug 8, 20184049 19th Av

Legalize extg extended living space per ord# 95-17, 1 bedroom, & 1 bath at basement built without permit. to be a second dwelling unit.(with in extg bldg envelope). replace window in bedroom to egress compliance. add kitchenette counter verify/upgrade 1 hour separation wall for adu: relocate laundry

Withdrawn
Jun 30, 2017243 Claremont Bl

Ground floor: legalize & remodel 1 bedroom, 1 & 1/2 baths wet bar, entertainment room, add windows to rear yard side, add 1-hr fire separation between garage & living spaces. upgrade water heater/ electrical. main upper flr: modify (e) half bath to full bath, modify kitchens cabinetry.

Cancelled
Mar 4, 2016446 Chenery St

Horizontal addition: expand (e) bldg towards rear yard. vertical addition: build a new 2/fl over the (e) main floor. minor excavation to move back rear patio. build new and repair (e) retaining wall to ensure soil stability. seismic structural upgrade.

Complete
Aug 5, 2014652 Commercial St

Tenant improvement of vacant commercial spac efor existing massage establishment. add one unisex ada restroom & massage rooms. (follow up ti permit of pa #201309035777 - removal of mezzanine level.) mep & sprinkler under separate permit.

Withdrawn
Apr 21, 20143855 26th St

Horizontal & vertical addition, merging existing three small studio units and one 1 bedroomunit into one residence of 5 bedrooms, entry at exsiting front. add one 2 bedroom unit at two levels w. separate entry. seismic structural upgrade.

Withdrawn
Jun 12, 20132550 San Bruno Av

Barrier removal for (e) restaurant: add a new accessible restroom to the existing customer seating area.

Complete
Dec 9, 2011209 Prentiss St

Erect 3 story single family residential.

Complete
Apr 26, 20111501 Diamond St

Horizontal & vertical addition. to comply with nov 201078188. seismic structural upgrade. refinish (e) detached garage. add landscaping.

Complete
Oct 8, 20091498 46th Av

Enclosed (e) deck for 2/f bedroom extension (78 sf), enclosed (e) g/f porch for lower living room extension (97 sf), relocate open wood stair to rear yard. replace living room, bedrooms wall/floor finish for insulation upgrade, partial seismic structural strengthening.

Issued
Sep 11, 20091498 46th Av

Fire damage: repair fire damaged flr framing & right side ext wall, interior gut of finishes. stud wall sealing for odor control. seal fl, ceiling joist system, repl finiahes. install insulation. repl kitchen & bathrm fixtures. electrical, mechanical system. lower floor: add 1 bedrm, 1 bath & liv

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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