Yu Yan

Engineer · Zenith Engineers Inc · Richmond

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?: License activeCivil Engineer C-90749First issued Aug 16, 2019, expires Dec 31, 2027.
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?: 9 permits since 2020, 9 in the last 5 years. Latest filed May 25, 2022.
What kind of projects?: Home remodel 2 · Addition 2 · Legalize or fix a violation 2
How long do their permits take?: Legalize or fix a violation: 2 months. 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: 2 permits in San Francisco

In 2020, latest filed Oct 21, 2020.

Time to get a permit

Theirs

3 months

Median from filing to permit, from 2 issued permits filed since 1966.

Where

Inner Sunset1
Bayview Hunters Point1

Most recent

Permits

11 permits that name Yu Yan, newest first, including 2 revisions or supplements that are not counted. Select a permit to see the full record.

Filed	Project	Type	Status	Time to permit
Jul 21, 2026	2201 12th Av Revision to 202106283357 to modify mudroom walls and add beam Issued	Revision or supplement	Issued	Within 1 month
Mar 5, 2026	1583 17th Av Revision to pa# 202512302990, convert (e) rec room to a den and a bedroom on ground level and widen rear door openings. extend wall between living and dining room on level 2 Complete	Revision or supplement	Complete	Within 1 month
May 25, 2022	874 Fell St #0 Front building soft story foundation work to comply with city requirements cebc appendix a4. to comply with nov 201990001 Complete	Legalize or fix a violationType unconfirmed	Complete	2 months
Dec 13, 2021	3580 17th St Remodel unit 3584. add 656 sq. ft. addition in the basement of unit 3586. repair siding in kind. replace windows in kind. 12 front windows. replace front wood doors with wood doors with smaller windows. Complete	Addition	Complete	3 months
Jul 29, 2021	2130 Oakdale Av To propose 2674sf growing room w/ interior partition wall in the main floor. adding 1426sf mezzanine for 1301sf growing room and storage in (e) mezzanine w/ associated mep work in (e) horticultural warehouse. Complete	Commercial or tenant improvementType unconfirmed	Complete	20 months
Nov 24, 2020	1915 Palou Av Apply for a ground floor adu. 3 bedrooms, 2 bathroom, kitchen, dining and living, laundry, relocate furnace and water heater. Complete	ADU	Complete	19 months
Oct 21, 2020	91 Warren Dr Convert 702 sf existing storage to living space at 1st floor by extending 1st floor align w/ existing 2nd floor wall. 1st fl conditional space convert to 2 bedrooms, 1 bath, 1 family rm. Complete	Home remodelType unconfirmed	Complete	3 months
Oct 19, 2020	176 Carl St Interior remodel, structural upgrades, convert 955 (e) storage to living space in basement, replace windows, rerofoing, repair damaged siding. reference complaint # 2020059346. Expired	Legalize or fix a violation	Expired	2 months
Oct 2, 2020	247 El Camino Del Mar Replace (e) floating roof deck and railing with t-rex boards & railing. Complete	Deck, stairs or patio cover	Complete	2 months
Sep 24, 2020	2135 Vallejo St Horizontal addition. existing kitchen to be replaced with new. existing (2) bathrooms to be replaced with new. Withdrawn	AdditionType unconfirmed	Withdrawn	—
Jul 14, 2020	1915 Palou Av 2/f: renovation to including add 2 full bathrooms, reconfigure 1 (e) bathroom, remodel (e) kitchen & laundry room. Complete	Home remodel	Complete	3 months

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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