CheckMyDesigner

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

Verify on DCA License Search

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

From 2003 to 2019, latest filed Aug 8, 2019.

Time to get a permit

Theirs
8 months

Median from filing to permit, from 20 issued permits filed since 1966.

Where

  • Pacific Heights4
  • Marina3
  • Haight Ashbury3
  • Inner Sunset3
Permits
79 permits that name David S Gast, newest first, including 18 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Dec 23, 202223 Harry St

Revision to approved pa# 201908280046, revised hvac systems, revised t-24 report and energy inspection requirements.

Complete
Jun 14, 2021375 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
Oct 1, 2019636 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
Sep 25, 20191120 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
Aug 28, 201923 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
Aug 22, 2019375 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
Aug 8, 20191805 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
Aug 2, 2019196 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
Jan 24, 2019477 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
Oct 19, 2018375 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
Jul 6, 2018565 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
Nov 14, 2017477 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
Oct 4, 20171150 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
Sep 20, 20171315 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
Sep 18, 20172253 Clay St

Revision to app#201404284336. replace easterly retaining wall in-kind where a planter was originaly scoped, remove planter from east.

Complete
Aug 10, 20173855 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
Mar 16, 20172170 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
Feb 23, 2017188 Haight St

Interior partition changes; master bedroom, mud/laundry, bath and wetbar renovation; plumbing, electrical and mechanical work; doors & windows envelope changes

Complete
Feb 22, 2017188 Haight St

Add 2 flat skylights and 1 window.

Complete
Feb 29, 2016825 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

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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