Thor Matteson
- Listed as
- engineer
- Firm
- Thor Matteson S.E.
- Based in
- Berkeley
- On San Francisco permits
- Sep 2013 to Jun 2026
21 permits since 2000 (engineer on 21 permits): 16 completed, 1 in progress, 2 never finaled, 2 expired or cancelled.
This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. How to read these records
Most recent permits
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Jun 25, 2026 | Completed final sign-off Oct 2026 | 2695 46th Av | Seismic Retrofitters Inc. | voluntary strengthening at ground floorDetails
voluntary strengthening at ground floor | $52,000 |
| Aug 20, 2025 | Completed final sign-off Nov 2025 | 248 Cumberland St | Nieto Valle Construction | install a (n) shear wall between line b&d. install a new 4x4 x20' strut along line b w/ 2x block over strut between joists. add a new shear wall between back end of bay window and line #4. supplement beam to post connection along line d in the middle of garage.Details
install a (n) shear wall between line b&d. install a new 4x4 x20' strut along line b w/ 2x block over strut between joists. add a new shear wall between back end of bay window and line #4. supplement beam to post connection along line d in the middle of garage. | $22,801 |
| Aug 8, 2025 | In progress issued Aug 2025 | 584 Chenery St | perform a voluntary seismic strenghtening project per fema p-1100 procedures including the installation of a proprietary "magnitude10" steel brace and associated concrete work in garage floor, bolting (e) building mudsill to (e) foundation at sides and back of house.Details
perform a voluntary seismic strenghtening project per fema p-1100 procedures including the installation of a proprietary "magnitude10" steel brace and associated concrete work in garage floor, bolting (e) building mudsill to (e) foundation at sides and back of house. | $20,000 | |
| Mar 10, 2021 | Completed final sign-off Sep 2021 | 1239 22nd Av | Nieto Valle Construction | voluntary strengthening of 1st floor.Details
voluntary strengthening of 1st floor. | $103,750 |
| Feb 1, 2019 | Completed final sign-off Aug 2019 | 144 Capra Wy | installation of steel moment column in the garage with foundation grade beam and connections to floor framingDetails
installation of steel moment column in the garage with foundation grade beam and connections to floor framing | $36,513 | |
| Jan 7, 2019 | Never finaled issued Jan 2019, no final | 530 Visitacion Av | Avant Garde Construction Enterprise | voluntary structural strenghthenDetails
voluntary structural strenghthen | $100,000 |
| Sep 15, 2017 | Completed final sign-off Feb 2022 | 557 Capp St | Nieto Valle Construction | seismic upgrade in accordance per sfebc chapter 4-d. 2016 cebc appendix a-4.Details
seismic upgrade in accordance per sfebc chapter 4-d. 2016 cebc appendix a-4. | $150,000 |
| Sep 15, 2017 | Completed final sign-off Mar 2019 | 2720 Vallejo St | Beyond The Horizon Construction | replace existing failed retaining wall with a new retaining wall and foundationDetails
replace existing failed retaining wall with a new retaining wall and foundation | $40,000 |
| Jul 27, 2017 | Completed final sign-off Jul 2019 | 1543 Vallejo St | soft story retrofit per sfebc chapter 4d, 2016 cebc appendix a-4, work includes new plywood shear walls, moment frames, collectors & grade beams.Details
soft story retrofit per sfebc chapter 4d, 2016 cebc appendix a-4, work includes new plywood shear walls, moment frames, collectors & grade beams. | $80,000 | |
| May 12, 2017 | Completed final sign-off Oct 2018 | 1257 09th Av | Mulhall Construction Inc. | seismic upgrade in accordance with sf ordinance 66-13, work includes new shearwalls, foundations, collectors & ties. 2016 cebc appendix a-4Details
seismic upgrade in accordance with sf ordinance 66-13, work includes new shearwalls, foundations, collectors & ties. 2016 cebc appendix a-4 | $80,000 |
| Sep 15, 2016 | Never finaled filed Sep 2016, never issued | 2128 Van Ness Av | mandatory strengthening per sf ordinance 66-13 (soft story). work includes new plywood shearwalls, cantilevered columns, drag-ties, & grade beams/foundations. 2012 iebc appendix a-4Details
mandatory strengthening per sf ordinance 66-13 (soft story). work includes new plywood shearwalls, cantilevered columns, drag-ties, & grade beams/foundations. 2012 iebc appendix a-4 | $160,000 | |
| Aug 4, 2016 | Completed final sign-off May 2020 | 9 August Al | Bai Construction | mandatory seismic strengthening in accordance with sf ordinance 66-13 following 2012iebc appendi a-4Details
mandatory seismic strengthening in accordance with sf ordinance 66-13 following 2012iebc appendi a-4 | $150,000 |
| Jul 22, 2016 | Completed final sign-off Feb 2017 | 1213 York St | Nieto Valle Construction | implement voluntary engineered seismic retrofit to comply with the brace & bolt programDetails
implement voluntary engineered seismic retrofit to comply with the brace & bolt program | $31,125 |
| Mar 29, 2016 | Expired or cancelled cancelled May 2018 | 1316 Jessie St | Sure, Inc. | soft story retrofit per sfbc chapter 34b, 2012 iebc appendix a-4. mandatory strengthening per sf mandatory program, new foundations, plywood shear walls below 1st framed floor.Details
soft story retrofit per sfbc chapter 34b, 2012 iebc appendix a-4. mandatory strengthening per sf mandatory program, new foundations, plywood shear walls below 1st framed floor. | $75,000 |
| Feb 22, 2016 | Completed final sign-off Aug 2016 | 1694 36th Av | Nieto Valle Construction | voluntary strengthening at front of house. install a steel column and concrete grade beam in the garage slab floor as per engineering plans.Details
voluntary strengthening at front of house. install a steel column and concrete grade beam in the garage slab floor as per engineering plans. | $21,000 |
| Nov 5, 2015 | Expired or cancelled cancelled Feb 2018 | 900 Florida St | Sure, Inc. | mandatory strengthening per sf mandatory program. new foundations, new plywood, shear walls, shear transfer ties installed at garage and crawlspace level 2012 iebcDetails
mandatory strengthening per sf mandatory program. new foundations, new plywood, shear walls, shear transfer ties installed at garage and crawlspace level 2012 iebc | $100,000 |
| Aug 20, 2015 | Completed final sign-off May 2016 | 527 Oak Park Dr | Quake- Smart Construction Company | voluntary siesmic retrofit, special cantilever moment column, foundation bolts, hold downs.Details
voluntary siesmic retrofit, special cantilever moment column, foundation bolts, hold downs. | $12,600 |
| Mar 30, 2015 | Completed final sign-off Aug 2015 | 165 Duboce Av | Hauer Construction & Maintenance | bolt down foundation in sheerwalls, tie downs, footings, replace sheetrockDetails
bolt down foundation in sheerwalls, tie downs, footings, replace sheetrock | $22,000 |
| Sep 29, 2014 | Completed final sign-off Dec 2014 | 2045 Hayes St | Kelton Construction | soft story retrofit per sfbc chapter 34b, asce 7-10.Details
soft story retrofit per sfbc chapter 34b, asce 7-10. | $50,000 |
| Nov 27, 2013 | Completed final sign-off Feb 2014 | 419 Prentiss St | Anderson - Niswander Seismic Retrofit In | voluntary strengthening of cripple wall bracing - mudsill bolting & connections to framing above cripple walls & strengthening at 1st floor stair opening. work is confined to crawl space & lower floor area.Details
voluntary strengthening of cripple wall bracing - mudsill bolting & connections to framing above cripple walls & strengthening at 1st floor stair opening. work is confined to crawl space & lower floor area. | $20,000 |
| Sep 3, 2013 | Completed final sign-off Feb 2014 | 461 Noe St | Bay Area Retrofit | sfbc chapter 34b lateral strenthening seismic upgrade in accordance with 2012 1 ebc appendix chp a1 to comply with sf ord 66-13. mandatory seismic retrofit program for wood framed building. shearwall,framing,connectors,footing, collectors, ties. confined to areas below 1st framed floorDetails
sfbc chapter 34b lateral strenthening seismic upgrade in accordance with 2012 1 ebc appendix chp a1 to comply with sf ord 66-13. mandatory seismic retrofit program for wood framed building. shearwall,framing,connectors,footing, collectors, ties. confined to areas below 1st framed floor | $60,000 |