CheckMyDesigner

Christopher Benno Kahanek

Engineer · Forensix Design · Phoenix

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeStructural Engineer S-5591First issued Jan 25, 2011, expires Jun 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?
12 permits since 2024, 12 in the last 5 years. Latest filed Dec 8, 2025.
What kind of projects?
Deck, stairs or patio cover 4 · Other 3 · Home remodel 2
How long do their permits take?
Deck, stairs or patio cover: 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
15 permits that name Christopher Benno Kahanek, newest first, including 3 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Jan 30, 20261675 Clay St

Revision to pa #202511189862: new structural reinforcement and foundation work to address existing work.

Complete
Jan 29, 2026660 Clipper St

Repair stringer beam. this permit is a revision to 20250408-3969. new 8x11.5 both sides. updated drawings for 4x4 and simpson connector.

Complete
Dec 12, 2025175 21st Av

Revision to pa# 202508153185 & 202502240980. replace rotted wall studs and posts per plan.

Complete
Dec 8, 2025721 Geary St

5th fl unit 24 existing window: infill with 6" fully grouted concrete masonry units. reinforce masonry infill with #4 bars as required for anchorage. apply parge coat to exterior surface and paint to match existing. finish interior surface with gypsum board to match existing.

Complete
Nov 18, 20251675 Clay St

Provide new foundation below (e) timber columns and wood framed walls as shown on as 100. remove and replace indicated timber post in kind. provide new post base connections cast into new column footings. remove and replace damaged region of (e) mudsill

Complete
Aug 6, 20253440 20th St

Unit 311 and 314 balcony repairs - sister severely deteriorated framing. repair minor deterioration with woodepox or approved equivalent. replace full stucco soffit vents.

Complete
Jul 17, 20251920 Pacific Av #0

Units 10 & 12: balcony repairs on joists, macoat application. repair cracker and loose stucco. replace deteriorated guard post at unit 10. replace deteriorated plywood decking and concrete toppings.

Complete
Jul 15, 20251234 Jones St

Remodel existing storage room to meet requirements for use as a trash room.

Complete
Apr 9, 20251675 Clay St #0

Replace (e) column to girder connection plates. fill in holes with wood pox. reinforce (e) fractured wood girder and adjacent girder in basement storage room with sistered steel plates.

Issued
Apr 9, 20254475 23rd St #0

Unit 1 & 5: front balconies repair. sister deteriorated joists repair loose guardrail base connection

Complete
Apr 8, 2025660 Clipper St

Remove guard rail post up to specified rust level. new wood blocking at guard rail post. install new post connection. remove corrosion off stringer geam. seal off openings with sealant.

Complete
Feb 24, 2025175 21st Av

Sb721 structural repairs, water proofing structural repairs, stucco replacement. to comply with nov #202430828 #2. repair decks unit 301,101,103,104,105,201

Complete
Feb 12, 202510 Glendale St #0

Fascial and water proofing, units 307 and 308 visible from street

Complete
Feb 10, 20251043 Minna St

To comply nov# 202418392, additional work permit to legalize existing as-built condition from pa# 201312194581 and to remove nov#202418392. location of (2) doors and (2) windows were swapped.

Complete
Oct 18, 2024969 Bush St #0

Make repairs per facade inspection report per sf facade maintenance program (sffmp) remove, prep and recoat loose and falling coating throughout exterior facade. repair instances of spalling concrete, seal open penetrations. secure unsecured pipes and wiring. replace cracked brick and in units...

Complete

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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