Chadwick Hamilton
Architect · Hamilton & Aitken Architects · San Francisco
Public records
From the licensing board and the city of San Francisco.
The short answer
- Licensed?
- License activeArchitect C-15932First issued Nov 7, 1985, expires Dec 31, 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?
- 40 permits since 2004, 40 in the last 5 years. Latest filed May 29, 2024.
- What kind of projects?
- Addition 13 · Home remodel 11 · Seismic retrofit or foundation 4
- How long do their permits take?
- Home remodel: 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.
Addition: 13 permits in San Francisco
Time to get a permit
Median from filing to permit, from 13 issued permits filed since 1966.
Where
- Bernal Heights4
- Noe Valley3
- Inner Richmond2
- Oceanview/Merced/Ingleside1
Most recent
- 210 Cortland AvExpand living area into existing basement area - add connecting stair, master bedroom , m. bath suite, den & floye.Jun 14, 2016Complete
- 325 Howth StPartial conversion of unconditioned attic space into 2nd floor bedroom and bath with electrical work. a new stair will also be constructed along with structural upgrades. exterior work. replacement of an extg fixed window with casement window. relocation of an extg basement access door.Jun 13, 2016Complete
- 334 Winfield StRaise (e) roof line over (e) space by 3'-6" & add new bathroom.Apr 17, 2015Complete
- 534 04th AvReplace (e) deteriorated front stair w/new stair. replace roof @ rear portion of house - add 2 bedrooms & 1 bath in former attic area.Sep 5, 2014Complete
- 138 Parker AvAlterations & expansion to 1st & 2nd & 3rd floor of subject property. 1st fl: add media room. 2nd fl: add breakfast room & deck. 3rd fl: add two bathrooms, breakfast roomand closet. horizontal expansion.May 16, 2014Complete
| Filed | Project | Type | Status | Time to permit | Open |
|---|---|---|---|---|---|
| Aug 13, 2026 | 1971 14th Av Revision to 202109299481 additional soil retention per geotech at recommendation at rear of propery, less then 50 cu.yd soil removal Filed | Revision or supplement | Filed | — | |
| May 29, 2024 | 202 Cortland Av Replace in kind dry rotted stairs at front of the building Complete | Deck, stairs or patio cover | Complete | Within 1 month | |
| Jan 24, 2024 | 127 Collingwood St Revision to pa# 201912189884, to reception area. Expired | Revision or supplement | Expired | Within 1 month | |
| Dec 19, 2023 | 127 Collingwood St Revision to an (e) approved permit 202110080125. add lavatory at toilet rm 117. Expired | Revision or supplement | Expired | Within 1 month | |
| Dec 16, 2022 | 101 08th Av Interior kitchen and bath renovation of 3rd fl unit in a 3 story, 3 unit building. interior work includes new fixtures, finishes, casework in e kitchen and bath. removal and modification to interior non structural and load bearing wood framed partitons Cancelled | Home remodel | Cancelled | — | |
| Sep 21, 2022 | 210 Cortland Av Kitchen and bathroom renovation on 1st fl at the rear of (e) residence. new windows at 1st fl rear elevation. new skylights, and structural improvements. project area is 450 gsf. Issued | Home remodel | Issued | 3 months | |
| Oct 8, 2021 | 127 Collingwood St To erect 1 story, no basement, type v, youth center. new construction of detached annex building at rear. Complete | New building | Complete | 15 months | |
| Oct 1, 2021 | 127 Collingwood St #0 Demo detached accessory structure at rear of property Complete | Other | Complete | 15 months | |
| Sep 29, 2021 | 1971 14th Av This permit is to resolve a notice of violation by sfdbi -nov# 202032487- replacement of cracked beam and deck framing at first floor, deck, exterior guard rail, deteriorated stairs and fence. Issued | Legalize or fix a violation | Issued | 29 months | |
| Dec 18, 2019 | 127 Collingwood St #0 Enclosing (e) driveway area as ground flr reception and hallway. converting unused garage into program space with accessible route through rear yard. Expired | Commercial or tenant improvementType unconfirmed | Expired | 26 months | |
| Dec 17, 2019 | 525 Laurel St Enlarge e opening in wood framed partition between existing kitchen and dining rm Issued | Home remodelType unconfirmed | Issued | Within 1 month | |
| May 11, 2017 | 755 Ocean Av Parking lot- install 14 temporary 1 story pre-manufactured portable classrooms in 7 hcd-approved bldgs & 1 temp. office bldg for 11 months, enlarge north gate & drive for sffd access. n/a ordinance #155-13 Complete | Retaining wall or site workType unconfirmed | Complete | 2 months | |
| Mar 29, 2017 | 51 Holly Park Cr Revision to 201409217499 to increase bearing capability of a single wall Complete | Revision or supplement | Complete | Within 1 month | |
| Aug 24, 2016 | 2340 Union St Soft story retrofit per sfbc chapter 34b engineering criteria... Complete | Seismic retrofit or foundation | Complete | 5 months | |
| Jul 12, 2016 | 1201 Church St Soft story seismic renovation @ office commerical space per criteria asce 7-10. cut & path (e) exterior siding & interior finishes to perform structural work. remove 6 windows & 3 doors to perform work. (residential #2016-0712-2098) Complete | Seismic retrofit or foundation | Complete | 12 months | |
| Jul 12, 2016 | 1201 Church St Soft story seismic renovation @ residential space per criteria asce 7-10. cut & path (e) exterior siding & interior finishes to perform work. (commercial #2016-0712-2100). Complete | Seismic retrofit or foundation | Complete | 12 months | |
| Jun 14, 2016 | 210 Cortland Av Expand living area into existing basement area - add connecting stair, master bedroom , m. bath suite, den & floye. Complete | Addition | Complete | Within 1 month | |
| Jun 13, 2016 | 325 Howth St Partial conversion of unconditioned attic space into 2nd floor bedroom and bath with electrical work. a new stair will also be constructed along with structural upgrades. exterior work. replacement of an extg fixed window with casement window. relocation of an extg basement access door. Complete | Addition | Complete | 3 months | |
| May 23, 2016 | 210 Cortland Av Revision to pt #201509036116 - foundation replacement lower extg basement slab for 8'-o" clearance. relocate water heater. Complete | Revision or supplement | Complete | Within 1 month | |
| Apr 28, 2016 | 2020 Green St #0 Soft story retrofit per sfbc chapter 34b engineering criteria other rational design, asce 7-10. replace finishes in kind to (e) finishes upon complettion of structural work. Complete | Seismic retrofit or foundation | Complete | 15 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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