CheckMyDesigner

Nate Williams

Engineer · Mosswood Engineering · Berkeley

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeCivil Engineer C-62068First issued Jun 28, 2001, expires Sep 30, 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?
141 permits since 2003, 141 in the last 5 years. Latest filed Oct 5, 2026.
What kind of projects?
Home remodel 43 · Addition 28 · Seismic retrofit or foundation 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: 43 permits in San Francisco

From 2006 to 2026, latest filed Jun 18, 2026.
Permits
182 permits that name Nate Williams, newest first, including 41 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Oct 5, 2026183 24th Av

To comply with nov 202662646. bathroom relocation of tub. rebuild existing roof deck and make the railing up to code with glass. replace in kind 5 windows on the side of the house. replace in kind knee walls. new full height walls.

Filed
Sep 22, 20262853 Green St

New construction of a 2-story type v-b adu in rear lot to include a gym with crawlspace, studio space with a kitchen, bathroom and sauna.

Filed
Jun 18, 202623 07th Av

Voluntary structural strengthening. new interior plywood shearwalls in short direction only. new concrete footing at previous rear addition. no changes to the footprint or exterior. raising of existing chimney

Issued
Jun 4, 20262853 Green St

Interior remodel at level 2 & attic. minor window changes, including in kind windows at front facade dormer. level 2 work includes: remodel x 2 bathrooms, relocate x 2 baths, interior partiton changes, new finishes, casework throughout. attic work includes: int partitions to create office

Issued
May 7, 20262251 Moraga St

Exterior backyard improvement include demo of (e) backyard & construction of (n) retaining walls w/ fence, (n) backyard hardscape, (n) side gate, and site draininge. build a storage shed less than 100 sq.sf.

Reinstated
Apr 1, 2026900 Clayton St

Remodel to include 153 sf addition at floor 3 with flat service platform above and 61 sf addition at level 1 garage. all within (e) footprint. (n) windows at level 3 at rear facade and lightwell, replace (1) door at level 2 rear, 2 window sashs at level 3 front , 1 skylight and bathroom remodel, (n)

Issued
Jan 14, 2026167 Bonview St

1st/f-partial new foundation. excavate 19 cu.yds for slab & footings. convert 386sf of garage to jadu & stairwell.2nd/f-remodel kitchen & dining, relocate bath, add stairwell & steps to rear yard.3rd/f-restructure & raise part of roof to enclose 2 bdrms, 1 bath & 2 decks.front facade- remove...

Issued
Dec 15, 2025363 Douglass St

Basement - voluntary seismic upgrade. replace west half of floor with slab on grade and reframe east floor. create tradesman corridor. remove laundry and install wet bar. add bathroom. replace east windows and doors. 1/f - remove bath for breakfast nook. change east door to window. 2/f - add laundry

Issued
Oct 22, 20253226 18th St

New adu under state adu programme. convert existing 1/f storage space into a 1-bedroom adu. new stairs from sidewalk to new unit. new utility room. no work on upper two floors.

Issued
Jun 30, 2025420 Monterey Bl

Existing front decks to be replaced in original location and size. front windows and doors to be replaced in existing openings. existing wood siding to remain and be painted.

Complete
Jun 17, 20251371 06th Av

Revision to pa# 202501098027: to include 98 sf horizontal extension (kitchen) at rear yard.

Issued
May 7, 202545 San Pablo Av

Rear yard: remove existing retaining wall closet to house.in rear yard,install new retaining wall, further back. install new staircase. all work within property line.

Complete
Apr 16, 20253226 18th St

Replacement existing foundation and slab with new concrete footing and slab. provide seismic upgrade or basement level. no change to exterior.

Issued
Mar 20, 2025679 12th Av

Voluntary structural strengthening, new plywood shearwalls in short direction only. no changes to the footprint or exterior.

Issued
Dec 23, 2024148 Highland Av

114 sf addition at lvl 1. convert 30 sf of unconditioned garage space to conditioned living space, kitchen & bathroom renovation including filling in lightwell at level 2. lvl 2: new door & windows & replacing 1 door lvl 1: rear facade replacing (1) door. add 2 skylights. n)furnance & tankless w/h

Complete
Nov 18, 2024404 Marietta Dr

Structural revision to 202303214040. 1 flush header, (n) steel beam at roof, (n) rear deack beams at grade.

Expired
Sep 19, 20242319 Funston Av

Revision pa#: 202303083267; foundation walls north, south, west and east per mosswood engineering

Expired
Sep 16, 2024330 Linden St

Installation of (n) storefront opening entry & egress doors on linden st side of 425-427 hayes st throughout building. (n) interior ramp to provide ada compliance structural scope includes storefront opening interior steps. (n) slab on grade & columns. existing sam flores mural on linden st

Issued
Sep 13, 20243595 Folsom St

Interior and exterior renovation to single family home. interior work includes new primary suite, kitchen remodel, replace e gas fireplace. exterior work includes new windows, new siding, new doors, new parapet

Complete
Aug 1, 20243771 Clay St

Revision to permit 202311140775 to address dbi issued correction notice dated 7/22/24 regarding new scope fo demolition. revision includes replacement in kind of 1st and 2nd level southwest corner demo and reframe blind wall, floor systems & roof per plans.all work under this permit shall be clouded

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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