David Owen Crestfield
Engineer · Triangle Engineering · San Francisco
Public records
From the licensing board and the city of San Francisco.
The short answer
- Licensed?
- License activeCivil Engineer C-50629First issued Jul 16, 1993, 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?
- 72 permits since 2003, 72 in the last 5 years. Latest filed Nov 18, 2025.
- What kind of projects?
- Seismic retrofit or foundation 18 · Deck, stairs or patio cover 18 · Home remodel 9
- How long do their permits take?
- Seismic retrofit or foundation: 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.
Seismic retrofit or foundation: 18 permits in San Francisco
Time to get a permit
Median from filing to permit, from 17 issued permits filed since 1966; 1 still in review. City is the San Francisco median for the same kind of review, from 14,919 permits.
Where
- Bayview Hunters Point5
- Bernal Heights2
- Mission2
- Castro/Upper Market2
Most recent
- 190 Park StVoluntary basement seismic retrofit at front building per cebc appendix ch a4Feb 25, 2025Filed
- 2852 22nd StLower garge level slab 12" replace perimeter foundation (81') 50% partial voluntary seismic strengtheningJan 24, 2024Expired
- 1056 Palou Av1064-1068 palou/10-unit building: mandatory soft story retrofit, foundation/basement level based on calif (e) building code appendix a-4. crawl space/basement level only.Aug 15, 2023Complete
- 734 Kirkwood Av742-752 kirkwood/10-unit building: mandatory soft story retrofit, foundation/basement level based on calif (e) building code appendix a-4. crawl space/basement level only.Aug 15, 2023Complete
- 1163 Oakdale AvWork is only for 10-unit building (1163-1167 oakdale): mandatory soft-story retrofit to foundation/ basement level. ca bldg code appendix a-4. work limit to crawl space/basement level onlyAug 11, 2023Complete
| Filed | Project | Type | Status | Time to permit | Open |
|---|---|---|---|---|---|
| Nov 18, 2025 | 101 Gough St Rehabilitation of 21 (e) units & provide 2 new dwelling units including new bathrooms & kitchens.provide new accessible entry and lobby, new finishes throughout, new hvac, plumbing system, electrical system and structural upgrades. Approved | ADU | Approved | — | |
| Feb 25, 2025 | 190 Park St Voluntary basement seismic retrofit at front building per cebc appendix ch a4 Filed | Seismic retrofit or foundation | Filed | — | |
| Feb 24, 2025 | 657 Clay St Revision to pa 202404190348 to add wall ties to remaining half of 2nd fl. structural revision only Complete | Revision or supplement | Complete | 1 month | |
| Aug 9, 2024 | 593 Banks St Retain (e) foundation & concrete slab & add (n) short cross wall foundation @ (n) garage door grade beam & 2 (n) shear wall. above (e) garage utility rm & middle bedrm add 2nd story include (n) stair to 2nd story, 2 bedrms,1 bath & 2 decks.covert gas to electrical: ev charger, cooktop,hp hvac. Complete | Addition | Complete | 3 months | |
| Jul 26, 2024 | 85 Mirabel Av Revision to bpa# 202303103513: remove the new stair connection north of gird line a from the scope of work. the rest of the project is as proposed per original project. Complete | Revision or supplement | Complete | Within 1 month | |
| Apr 19, 2024 | 657 Clay St Scope:repair & normal maintenance for in kind replacement of appliances & finishes, providing a utility sink, insulating extg hot water laterals, mech. repairs & hallway ventilation, in kind lighting fixutres & receptacles, new flooring, interior painting, in kind window replacement, Complete | Commercial or tenant improvementType unconfirmed | Complete | 2 months | |
| Jan 24, 2024 | 2852 22nd St Lower garge level slab 12" replace perimeter foundation (81') 50% partial voluntary seismic strengthening Expired | Seismic retrofit or foundationType unconfirmed | Expired | Within 1 month | |
| Aug 15, 2023 | 1056 Palou Av 1064-1068 palou/10-unit building: mandatory soft story retrofit, foundation/basement level based on calif (e) building code appendix a-4. crawl space/basement level only. Complete | Seismic retrofit or foundation | Complete | 1 month | |
| Aug 15, 2023 | 734 Kirkwood Av 742-752 kirkwood/10-unit building: mandatory soft story retrofit, foundation/basement level based on calif (e) building code appendix a-4. crawl space/basement level only. Complete | Seismic retrofit or foundation | Complete | 1 month | |
| Aug 11, 2023 | 1163 Oakdale Av Work is only for 10-unit building (1163-1167 oakdale): mandatory soft-story retrofit to foundation/ basement level. ca bldg code appendix a-4. work limit to crawl space/basement level only Complete | Seismic retrofit or foundation | Complete | 1 month | |
| Aug 11, 2023 | 1013 Oakdale Av Work is in 10-unit building at 1013-1017 oakdale. mandatory soft-story retrofit to the foundation/basement level. based on the california existing building code appendix a-4. work limited to the crawl space/basement level only. Complete | Seismic retrofit or foundation | Complete | 1 month | |
| Jun 29, 2023 | 1001 Powell St Owner improvement of 1001 powell includes replacing e restroom with accessible single occupancy restroom,replacement of wall and floor finishes,replacement e light fixtures,power at laundromat,mech rm, storage. accessible entrance provided under 202202228422 Complete | Commercial or tenant improvement | Complete | Within 1 month | |
| Jun 29, 2023 | 1005 Powell St Add a residential laundry room, adjacent to lounge, for sro tenants of the building on the upper floors of the 5-story building. lounge was permitted under pa# 202204142240. Complete | Commercial or tenant improvement | Complete | Within 1 month | |
| Apr 13, 2023 | 121 Randall St Revision to pa 2022-1228-9224 to voluntarily add shearwall on line a6 and d at garage level; change rear stair foundation detail Issued | Revision or supplement | Issued | Within 1 month | |
| Mar 10, 2023 | 85 Mirabel Av Addition consists of bay windows over sidewalk. widened garage door, new entry, roof deck on 3rd flr facing rear yard. new firewall @ new stair & deck. new hardscape deck @ rear. new stair connection to rear yard terraces & stairs. Complete | Addition | Complete | 11 months | |
| Oct 13, 2022 | 1005 Powell St Partial replacement of footings to correct conditions found during construction under permit #202204142240 Complete | Revision or supplementType unconfirmed | Complete | Within 1 month | |
| Jul 25, 2022 | 681 12th Av Revision to bpa# 202110291470. incorporating structural sketches based on existing conditions; foundation cap, stairs support, rear wall ties. Complete | Revision or supplement | Complete | Within 1 month | |
| Apr 14, 2022 | 1005 Powell St To comply with nov#201803424.replace entries.former residential lobby will become sro manager office.reconfigure entry.warp sidewalk to provide landing.add ramp in the office for accessibility.modify(e)storage areas to a trash room, lounge & restroom.mep improvements.infill vault&cover at sidewalk Complete | Legalize or fix a violation | Complete | 6 months | |
| Feb 25, 2022 | 768 Jerrold Av Soft story retrofit per sfebc chapter 4d engineering criteria cebc appendix a-4. Complete | Seismic retrofit or foundation | Complete | 19 months | |
| Feb 25, 2022 | 1900 Green St #0 Exterior: replace vinyl windows with wood. front yard landscaping + fence. interior: convert garage to laundry. remove walls in kitchen. remodel basement, 1st fl & partial 2nd fl. remove brick fireplaces. Complete | Home remodel | Complete | 4 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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