CheckMyDesigner

Timothy Michael O'sullivan

Engineer · Tim O'sullivan Structural Eng · San Rafael

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeCivil Engineer C-35235First issued Aug 18, 1982, expires Sep 30, 2027.

Source: DCA license roster, retrieved Nov 5, 2026

Verify on DCA License Search

Any board discipline?
None found.

We searched the BPELSG enforcement list on Nov 5, 2026.

Worked in San Francisco?
488 permits since 2002, 488 in the last 5 years. Latest filed Sep 30, 2026.
What kind of projects?
Home remodel 123 · Deck, stairs or patio cover 122 · Seismic retrofit or foundation 113
How long do their permits take?
Home remodel: within 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.

Permits
578 permits that name Timothy Michael O'sullivan, newest first, including 90 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Nov 3, 20263666 21st St

Replace rear story wood deck and stairs to yard per original permit 8711950

Filed
Sep 30, 20261867 15th Av

Retaining walls at yard to level out yard.

Filed
Sep 29, 2026520 Judson Av

Voluntary seismic strengthening

Issued
Sep 22, 202641 Garcia Av

Repairs to existing front stairs at entry. replace terazzo to brick steps and risers. match finishes. waterproof.

Filed
Sep 16, 2026297 Richland Av

Foundation replacement, seismic upgrade at ground level, eliminate 1 parking garage to storage space, infill garage door, match (e) finishes, add man-door and window.

Issued
Sep 4, 20263745 Ulloa St

Add new bay window at dining room at front elevation on 2nd floor. to remove wall between dining area. to update existing rear house siding to hardie board siding.(color & texture to match existing siding)

Filed
Aug 19, 2026281 16th Av

Comply with planning notice of complaint#2026-004305 ent to re-install kitchen.

Issued
Aug 5, 20261428 Wawona St

Retaining walls at yard for landscape

Filed
Aug 5, 20261081 Kansas St

Replace (e) concrete retaining wall @ yard and reinforce (e) retaining wall -cut and new retaining wall.

Filed
Aug 2, 20261436 Wawona St

Replace retaining wall at yard to support landscape

Issued
Jul 28, 20263819 17th St

New storage room at rear of e unit add retain wall, excavate e crawl space

Issued
Jul 21, 20261514 34th Av

Verify room legality

Filed
Jul 15, 2026835 Alabama St

Demolish of roof /shed, rebuild 5 ft fence.

Issued
Jul 14, 20262037 14th Av

Str revision to 202604229878. layout changes on both levels to include closets & rear facing wall w/ wider opening. added grade beams and replaced (e) posts with load bearing wall at lower level. remove exterior spiral stair. re-framed living room roof. add shearwalls at property line walls @ l1.

Issued
Jun 24, 2026255 Sanchez St

Revision to bpa#202510318668 & 202506047908 per district inspector about beam change

Issued
Jun 23, 2026280 Roosevelt Wy

Replace rear-yard wood landscape retaining wall and construct new concrete wall, about 20 feet in length, 5 feet retained height, provide 42-inch tall metal guardrail atop stem.

Issued
Jun 10, 2026222 Juanita Wy

Partial rear of building foundation replace, girder upgrade at basement, partial excavation at basment (storage) less than 50 cy.

Issued
Jun 9, 20262226 25th Av

Plan revision to #202407196864: per inspector request to building framing, add skylight and framing.

Issued
Jun 8, 2026280 Roosevelt Wy

New roof deck, 4'x32" side, rear addition, new windows + doors, partition walls. all new 5/8" type x 6wb.

Withdrawn
Jun 2, 20262772 41st Av

New porch and stair to yard, kitchen remodel, remodel existing bathroom main level and add bathroom at main level.replace 7 windows.

Issued

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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