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
- 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
Time to get a permit
Median from filing to permit, from 42 issued permits filed since 1966. City is the San Francisco median for the same kind of review, from 25,225 permits.
Where
- West of Twin Peaks10
- Mission6
- Bernal Heights4
- Sunset/Parkside3
Most recent
- 23 07th AvVoluntary 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 chimneyJun 18, 2026Issued
- 2853 Green StInterior 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 officeJun 4, 2026Issued
- 679 12th AvVoluntary structural strengthening, new plywood shearwalls in short direction only. no changes to the footprint or exterior.Mar 20, 2025Issued
- 3595 Folsom StInterior 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 parapetSep 13, 2024Complete
- 2929 20th AvInterior remodel to existing sfd. work to include kitchen rennovation, (1) bathroom remodel, (1) new bathroom and window replacements at the side (6) totalMar 21, 2024Complete
| Filed | Project | Type | Status | Time to permit | Open |
|---|---|---|---|---|---|
| Oct 5, 2026 | 183 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 | Legalize or fix a violation | Filed | — | |
| Sep 22, 2026 | 2853 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 | New building | Filed | — | |
| Jun 18, 2026 | 23 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 | Home remodelType unconfirmed | Issued | Within 1 month | |
| Jun 4, 2026 | 2853 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 | Home remodel | Issued | Within 1 month | |
| May 7, 2026 | 2251 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 | Retaining wall or site work | Reinstated | Within 1 month | |
| Apr 1, 2026 | 900 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 | Addition | Issued | Within 1 month | |
| Jan 14, 2026 | 167 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 | AdditionType unconfirmed | Issued | 5 months | |
| Dec 15, 2025 | 363 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 | Seismic retrofit or foundationType unconfirmed | Issued | Within 1 month | |
| Oct 22, 2025 | 3226 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 | ADU | Issued | 4 months | |
| Jun 30, 2025 | 420 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 | Deck, stairs or patio coverType unconfirmed | Complete | 4 months | |
| Jun 17, 2025 | 1371 06th Av Revision to pa# 202501098027: to include 98 sf horizontal extension (kitchen) at rear yard. Issued | Revision or supplement | Issued | 1 month | |
| May 7, 2025 | 45 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 | Retaining wall or site work | Complete | 4 months | |
| Apr 16, 2025 | 3226 18th St Replacement existing foundation and slab with new concrete footing and slab. provide seismic upgrade or basement level. no change to exterior. Issued | Seismic retrofit or foundation | Issued | 3 months | |
| Mar 20, 2025 | 679 12th Av Voluntary structural strengthening, new plywood shearwalls in short direction only. no changes to the footprint or exterior. Issued | Home remodelType unconfirmed | Issued | Within 1 month | |
| Dec 23, 2024 | 148 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 | Addition | Complete | Within 1 month | |
| Nov 18, 2024 | 404 Marietta Dr Structural revision to 202303214040. 1 flush header, (n) steel beam at roof, (n) rear deack beams at grade. Expired | Revision or supplement | Expired | Within 1 month | |
| Sep 19, 2024 | 2319 Funston Av Revision pa#: 202303083267; foundation walls north, south, west and east per mosswood engineering Expired | Revision or supplement | Expired | Within 1 month | |
| Sep 16, 2024 | 330 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 | Commercial or tenant improvementType unconfirmed | Issued | 5 months | |
| Sep 13, 2024 | 3595 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 | Home remodel | Complete | 2 months | |
| Aug 1, 2024 | 3771 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 | Revision or supplement | Complete | Within 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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