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
- 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.
Addition: 3 permits in San Francisco
Time to get a permit
Median from filing to permit, from 3 issued permits filed since 1966. City is the San Francisco median for the same kind of review, from 872 permits.
Where
- Inner Richmond1
- Glen Park1
- Sunset/Parkside1
Most recent
- 451 10th AvRemodel(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.Dec 5, 2022Issued
- 446 Chenery StHorizontal 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.Mar 4, 2016Complete
- 1498 46th AvEnclosed (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.Oct 8, 2009Issued
| Filed | Project | Type | Status | Time to permit | Open |
|---|---|---|---|---|---|
| Jun 6, 2025 | 324 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 | Revision or supplement | Issued | 4 months | |
| Apr 11, 2025 | 374 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 | Revision or supplement | Issued | Within 1 month | |
| Dec 5, 2022 | 451 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 | Addition | Issued | 21 months | |
| Oct 18, 2022 | 376 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 | ADU | Issued | 13 months | |
| Mar 11, 2021 | 818 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 | ADU | Complete | 8 months | |
| Jan 29, 2019 | 446 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 | Revision or supplement | Complete | Within 1 month | |
| Aug 8, 2018 | 4049 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 | Legalize or fix a violationType unconfirmed | Withdrawn | — | |
| Jun 30, 2017 | 243 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 | Legalize or fix a violation | Cancelled | — | |
| Mar 4, 2016 | 446 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 | Addition | Complete | 17 months | |
| Aug 5, 2014 | 652 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 | Revision or supplement | Withdrawn | — | |
| Apr 21, 2014 | 3855 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 | Commercial or tenant improvement | Withdrawn | — | |
| Jun 12, 2013 | 2550 San Bruno Av Barrier removal for (e) restaurant: add a new accessible restroom to the existing customer seating area. Complete | Commercial or tenant improvement | Complete | Within 1 month | |
| Dec 9, 2011 | 209 Prentiss St Erect 3 story single family residential. Complete | New building | Complete | 39 months | |
| Apr 26, 2011 | 1501 Diamond St Horizontal & vertical addition. to comply with nov 201078188. seismic structural upgrade. refinish (e) detached garage. add landscaping. Complete | Legalize or fix a violation | Complete | 5 months | |
| Oct 8, 2009 | 1498 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 | Addition | Issued | 5 months | |
| Sep 11, 2009 | 1498 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 | Home remodel | Complete | 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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