Matthias Troitzsch
Architect · Id8bau · San Francisco
Public records
From the licensing board and the city of San Francisco.
The short answer
- Licensed?
- License activeArchitect C-30973First issued Feb 13, 2007, expires Feb 28, 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?
- 24 permits since 2010, 24 in the last 5 years. Latest filed Jul 14, 2026.
- What kind of projects?
- Home remodel 6 · Addition 6 · Commercial or tenant improvement 5
- 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: 6 permits in San Francisco
Time to get a permit
Median from filing to permit, from 5 issued permits filed since 1966; 1 still in review. City is the San Francisco median for the same kind of review, from 15,393 permits.
Where
- Mission3
- Presidio Heights1
- Inner Richmond1
- Sunset/Parkside1
Most recent
- 1275 Guerrero StSwap kitchen & dining room location, remodel bathroom; add bedroom 3 in rear of building(previous playroom), rebuild gallery level with code compliant ceiling heights & stairs, legalize all areas on level 1 that are to remain; remove bath 2; reconfigure bedroomsJul 14, 2026Filed
- 3351 Jackson StRemove staircase in laundry room nest to kitchen and fill opening. install (n) open space access stair on the west facade in side yard. remodel kitchen ,pantry , laundry , primary bath and closet, jack and jill bath and hall bath.Apr 16, 2025Issued
- 28 05th AvWork on first floor. remodel bath and adjacent powder room. move tub, vanity and toilet, infill door from hallway. replace toilet with code conforming one in powder room. replace bathroom door with pocket door.May 7, 2024Complete
- 2850 25th StRemodel of lower unit: convert front double parlon into master bed _ bathroom + closet. adjust adjacent 2 bedroom sizes, open rear area as kitchen, dining, living space. remove rear wall windows and doors and repalce with new ones. new folding door at lower level, new french and regular door @ upperNov 1, 2022Expired
- 1466 46th AvInterior remodel only. garag remove post and transfer loads via new beams & posts. add staircase connection from garage to upper level. remodel walls in garage and add bathroom. upper level - remodel kitchen and dining r, remodel bathroomNov 5, 2018Complete
| Filed | Project | Type | Status | Time to permit | Open |
|---|---|---|---|---|---|
| Jul 14, 2026 | 1275 Guerrero St Swap kitchen & dining room location, remodel bathroom; add bedroom 3 in rear of building(previous playroom), rebuild gallery level with code compliant ceiling heights & stairs, legalize all areas on level 1 that are to remain; remove bath 2; reconfigure bedrooms Filed | Home remodelType unconfirmed | Filed | — | |
| Jun 16, 2026 | 57 Carmelita St Revision 202510157468 to still lower courtyard at rear of building with stepped planters and stair to garden. expand basement rear area to wide propsed garden room, kitchen on first floor for bedroom 1 Issued | Revision or supplement | Issued | Within 1 month | |
| May 29, 2026 | 60 Piedmont St Create basement space at 8'4" ceiling height in parts of (e) cellar space. expand rear partition of bldg 3'93/4" to north, enlarging kitchen on level (l1). level 2 convert study & closet intro primary bathroom. l1 and l2 to attic space into playroom and storage. new staircase from basement to l2 Filed | Addition | Filed | — | |
| Apr 17, 2026 | 257 Hale St Fill lightwell(patio) along west property line for new bath on level 2 exterior property line wall to be 1 hr fire rated and match(e) waall. roof infill to match(e) & be class b min. add 2 skylights- over corredor & over kitchen island Filed | AdditionType unconfirmed | Filed | — | |
| Jan 15, 2026 | 257 Hale St Revision to pa# 202508213577: no skylight removal as it is a lightwell. lightwell to remain. (scope reduction) Issued | Revision or supplement | Issued | Within 1 month | |
| Jan 7, 2026 | 2525 22nd Av Revision to pa #202506259388: new wall to align with existing wall at s.w. corner, part of horizontal expansion/change walls at interior stair to kitchen/new slider patio door at n-w patio/change windows 0034 004 size(smaller) changes in layout of new bath 1 & 2, furnace & water, heater moved into Issued | Revision or supplement | Issued | Within 1 month | |
| Dec 1, 2025 | 57 Carmelita St Lower slab at ground level for new garage and additional dwelling, storage and mechanical space. install front yard garage ramp and planters. remodel main level (level 1) new kitchen and garden room. remove (e) garden room. remodel upper level (level 2) new primary bath. Issued | ADUType unconfirmed | Issued | 4 months | |
| Dec 1, 2025 | 263 Hale St Revision to pa # 202509125186: to document reconfiguration of level 1 habitable/conditioned space. no structural /plumbing fixture change. Complete | Revision or supplement | Complete | 8 months | |
| Sep 15, 2025 | 3351 Jackson St Revision to 202504164517. layout change in kitchen and pantry (scullery). pantry to be moved to south of kitchen, adjacent to primary bath. replacement of 2 windows in kitchen and 1 window in new pantry location with in-kind wood frame double-hung windows. new window locations due to layout change. Issued | Revision or supplement | Issued | Within 1 month | |
| Sep 12, 2025 | 263 Hale St Garage level: add bedroom and bathroom at rear. add space under kitchen to bedroom as new study. floor in that study to be located to 7'-6" minimum ceiling height. new stair to garden and up to upper level with new deck in front of facade. upper level: new bedroom & primary suite with 3/4 bath. Complete | AdditionType unconfirmed | Complete | Within 1 month | |
| Apr 16, 2025 | 3351 Jackson St Remove staircase in laundry room nest to kitchen and fill opening. install (n) open space access stair on the west facade in side yard. remodel kitchen ,pantry , laundry , primary bath and closet, jack and jill bath and hall bath. Issued | Home remodel | Issued | Within 1 month | |
| Mar 11, 2025 | 3633 Taraval St Change of use from general grocery (m) to arts activities (b). no construction required. Issued | Commercial or tenant improvement | Issued | Within 1 month | |
| May 7, 2024 | 28 05th Av Work on first floor. remodel bath and adjacent powder room. move tub, vanity and toilet, infill door from hallway. replace toilet with code conforming one in powder room. replace bathroom door with pocket door. Complete | Home remodel | Complete | Within 1 month | |
| Dec 8, 2023 | 2850 25th St 1.) remove existing rear yard deck and deck overhang 2.) build new deck with exterior metal spiral staircase 3.) fill in brick foundation of wood fence at the new deck and add wood fence to match (e) fence along hampshire st 4.) add new yard gate next to garage Approved | Deck, stairs or patio cover | Approved | — | |
| Apr 28, 2023 | 2850 25th St Rev to pa #202301130182 & 202211015676, adjustment & wall locations on lvl 2 (l2)- adjusted structural drawings accordingly, exstg bldg length shortened by 4 5/8", change proposed frnech door at bedroom #2 on lvl 2 to door & window, straighten master bath wall, remove proposed window over bed (rev1) Expired | Revision or supplement | Expired | Within 1 month | |
| Nov 1, 2022 | 2850 25th St Remodel of lower unit: convert front double parlon into master bed _ bathroom + closet. adjust adjacent 2 bedroom sizes, open rear area as kitchen, dining, living space. remove rear wall windows and doors and repalce with new ones. new folding door at lower level, new french and regular door @ upper Expired | Home remodel | Expired | Within 1 month | |
| Jan 29, 2020 | 1466 46th Av Revision to pa #2019-0419-8457: remove wall segment on line 6 btw line a & line a.1. build new exterior wall on line 8 btw a & a.1. add glass sliding door. add hydronic heating (radiant floor heat) to (e) sunroom 104, proposed home office 106 & (e)sunroom 206 (378 sq ft). Complete | Revision or supplement | Complete | Within 1 month | |
| Apr 19, 2019 | 1466 46th Av Remove (e) garden addition/lean-to east of line 6. rebuild addition/lean-to in similar configuration but approx 48" deeper into garden (eastward) to align w/ south neighbor's face of garden wall of rear addition. Complete | Addition | Complete | 5 months | |
| Jan 17, 2019 | 1466 46th Av Revision to app#201811054934. change location of wall dividing garage and proposed den and bathroom. remove 2 windows on inside of lower level sunroom and replace with french door. replace insufficient sog on lower level. remove door and window in kitchen, replace with door. Complete | Revision or supplement | Complete | Within 1 month | |
| Nov 5, 2018 | 1466 46th Av Interior remodel only. garag remove post and transfer loads via new beams & posts. add staircase connection from garage to upper level. remodel walls in garage and add bathroom. upper level - remodel kitchen and dining r, remodel bathroom Complete | Home remodelType unconfirmed | 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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