David S Gast
Architect · Gast Architects · San Francisco
Public records
From the licensing board and the city of San Francisco.
The short answer
- Licensed?
- License activeArchitect C-10895First issued Apr 22, 1980, expires Jan 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?
- 61 permits since 2003, 61 in the last 5 years. Latest filed Jun 14, 2021.
- What kind of projects?
- Addition 23 · Home remodel 19 · Deck, stairs or patio cover 5
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: 23 permits in San Francisco
Time to get a permit
Median from filing to permit, from 20 issued permits filed since 1966.
Where
- Pacific Heights4
- Marina3
- Haight Ashbury3
- Inner Sunset3
Most recent
- 1805 Scott StAdd 2nd fl w/ roof deck. reconfigure 1st fl. seismic upgrade w/ foundation work. upgrade electrical, plumbing & hvac systems. replace front, wood sash in kind.Aug 8, 2019Cancelled
- 196 Avila StVertical addition @ (e) roof deck consisting of (2) new bedrooms, (2) baths. rework (e) roof at rear to extend tile roof to south and create small roof deck. extend (e) roof deck to south for more direct avila stto interior stair.Aug 2, 2019Cancelled
- 477 Belvedere StMep work at 3rd flr. 8'-0" rear horizontal additon of 155 sq ft to (e) 3rd flr. (3) new windows & (3) new skylights. interior partition changes & renovations to (e) 3 bedrooms, 3 closets, 2 full baths & 1 study. w/ sprinklersJan 24, 2019Complete
- 477 Belvedere StRemove 2nd fl rear decks, exterior stairs, dinoing bay window of kitchen, const 2 story rear addition w/ 1 story roof deck off 2nd fl & stairs to yard, adding guest bed, bath, 2 media rm at 1st fl, 3rd fl, roof over one-story light court enclose for office use, new fixt, finishes, seismic upgrade.Nov 14, 2017Complete
- 2226 Green St1'-0" deep deck extension at 4th flr rear. 2'-0" horizontal in-fill addition at east light well.convert 3 living rm openings to 21'-0" wide lift/slide door.provide 4(n) washrooms and replace units throughout. remove fure escape, add fire suppression (under sep permit). interior renovations.maher n/aFeb 17, 2016Complete
| Filed | Project | Type | Status | Time to permit | Open |
|---|---|---|---|---|---|
| Dec 23, 2022 | 23 Harry St Revision to approved pa# 201908280046, revised hvac systems, revised t-24 report and energy inspection requirements. Complete | Revision or supplement | Complete | 3 months | |
| Jun 14, 2021 | 375 A Edgehill Wy Addition of 543 sq ft adu within existing space under the streamlined adu program. proposed location of adu is within second floor level renovation of approved permit 2019-08229631, issued on october 10 2019, currently in construction. no changes to the previously approved envelope. Expired | ADU | Expired | 10 months | |
| Oct 1, 2019 | 636 Belvedere St Interior alter to the (e) 2nd floor in 2-story dwelling, including remodeling the kitchens & bathroom & powder room, expansion into (e) lightwell to expand (e) powder room. new windows to match & rep (e) new deck on grade and landscape. Complete | Home remodel | Complete | Within 1 month | |
| Sep 25, 2019 | 1120 South Van Ness Av Front gate, planter only no work to interior or back of house no roof deck. revision to 2017-0906-7104 to provide additional details at front gate and planters. Complete | Revision or supplement | Complete | Within 1 month | |
| Aug 28, 2019 | 23 Harry St Convert 1/f storage, workshop & crawlspace to habitable space w/int stairs to 2/f. minor renovation to 2/f, replacement stairs btwn 2/f & 3/f. reorganize 3/f interior. new insulated clad wood windows & doors. new ext fiber cement plank siding, upgrade to seismic resistance. elec, plumb, hvac systems Complete | Home remodelType unconfirmed | Complete | 36 months | |
| Aug 22, 2019 | 375 Edgehill Wy Revision/reduced to pa 2015-0820-4819. 2nd fl - no horizontal extensions. remove habitable spae @ crawl space. propose renovation of (e) space; 3rd fl -no extension at kitchen & reduce extension @ dining;reduced extension at (n) vestibule lift adjacent (e) garage; reno (e) space & carport. rebuild & Expired | Revision or supplement | Expired | 2 months | |
| Aug 8, 2019 | 1805 Scott St Add 2nd fl w/ roof deck. reconfigure 1st fl. seismic upgrade w/ foundation work. upgrade electrical, plumbing & hvac systems. replace front, wood sash in kind. Cancelled | Addition | Cancelled | — | |
| Aug 2, 2019 | 196 Avila St Vertical addition @ (e) roof deck consisting of (2) new bedrooms, (2) baths. rework (e) roof at rear to extend tile roof to south and create small roof deck. extend (e) roof deck to south for more direct avila stto interior stair. Cancelled | Addition | Cancelled | 23 months | |
| Jan 24, 2019 | 477 Belvedere St Mep work at 3rd flr. 8'-0" rear horizontal additon of 155 sq ft to (e) 3rd flr. (3) new windows & (3) new skylights. interior partition changes & renovations to (e) 3 bedrooms, 3 closets, 2 full baths & 1 study. w/ sprinklers Complete | Addition | Complete | 6 months | |
| Oct 19, 2018 | 375 Edgehill Wy Adition of 784 sf adu (2 bedrooms & 1 bathroom) within (e) space per ordinance# 95-17. proposed location of adu is within 2nd floor renovation of approved pa# 2015/08/20/4819-s1. proposed adu include close off entry from lower hall. add new range with fan above. 1 hour separation @ walls & ceiling. Withdrawn | Revision or supplementType unconfirmed | Withdrawn | — | |
| Jul 6, 2018 | 565 Jersey St Stell framed bridge and landing w/structural glass floor panels from rear of 2nd flr to backyard grade. door & window replacement in modified (e) opening at rear facade. replace guard at (e) rear yard retainin wall Complete | Deck, stairs or patio cover | Complete | Within 1 month | |
| Nov 14, 2017 | 477 Belvedere St Remove 2nd fl rear decks, exterior stairs, dinoing bay window of kitchen, const 2 story rear addition w/ 1 story roof deck off 2nd fl & stairs to yard, adding guest bed, bath, 2 media rm at 1st fl, 3rd fl, roof over one-story light court enclose for office use, new fixt, finishes, seismic upgrade. Complete | Addition | Complete | 16 months | |
| Oct 4, 2017 | 1150 Sacramento St #101 Unit 101: 2 story interior renovation. relocate (e) interior stair. relocate entry door at lower level elevator lobby. upgrade fixtures, finishes and fitting througout unit. partial rewiring and new plumibng in selected areas. maher na Complete | Home remodel | Complete | Within 1 month | |
| Sep 20, 2017 | 1315 Monterey Bl 1st fl - add powder rm & convert office to media. add patio deck at 1st fl and cantilevered blacony at 3rd fl; remove (e) 3rd fl window bay at rear, add roof deck above. replace front facade picture window, door and garage door. excavate at 1st fl to extend new interior stair. interior reno to inclu Expired | Deck, stairs or patio coverType unconfirmed | Expired | 4 months | |
| Sep 18, 2017 | 2253 Clay St Revision to app#201404284336. replace easterly retaining wall in-kind where a planter was originaly scoped, remove planter from east. Complete | Revision or supplement | Complete | Within 1 month | |
| Aug 10, 2017 | 3855 Washington St Add all thread & straps to support existing glulam beam; revised 4th floor framing plan; hss beam connection with bent plate detail; new psl beam hanger at existing wide flange column Issued | Home remodel | Issued | Within 1 month | |
| Mar 16, 2017 | 2170 Jackson St #3 #3:rev to 201609299161.int remodel: r&r (e) finish flooring, interior walls & dropped ceiling. install new elect service, power & lighting. (e) steam heat to remain with new radiators. install five windows in modif openings. install (n) branch plbg & fix. windows 1,2,24.08,09,window 7 inkindmaher na Complete | Revision or supplement | Complete | Within 1 month | |
| Feb 23, 2017 | 188 Haight St Interior partition changes; master bedroom, mud/laundry, bath and wetbar renovation; plumbing, electrical and mechanical work; doors & windows envelope changes Complete | Home remodel | Complete | Within 1 month | |
| Feb 22, 2017 | 188 Haight St Add 2 flat skylights and 1 window. Complete | Other | Complete | 17 months | |
| Feb 29, 2016 | 825 Lake St Legalize & rebuild existing 47 sq ft deck at 2nd fl rear yard, add fire-rated parapet guardwall at property line, fill-in below existing 2nd floor deck to create 47 sq ft of harbitable space for the lower unit. fire sprinkler under separate permit. Withdrawn | Legalize or fix a violation | Withdrawn | — |
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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