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Jon Yukio Yokoyama

Engineer · Paradigm Structural Engineers · Walnut Creek

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeStructural Engineer S-4216First issued Mar 20, 1998, expires Jun 30, 2028.

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?
19 permits since 2012, 19 in the last 5 years. Latest filed Nov 5, 2025.
What kind of projects?
Commercial or tenant improvement 14 · Other 3 · Legalize or fix a violation 1
How long do their permits take?
Commercial or tenant improvement: 3 months. 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
21 permits that name Jon Yukio Yokoyama, newest first, including 2 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Nov 5, 2025445 Powell St #0

Ab-017: decommissioning of bank of america. removal of bank furniture, equipment, vault and other bank elements related to bofa; removal of exterior atm; deposit box. scope of work will not public right of way

Complete
Oct 16, 202538 Hotaling Pl #0

Replacement of (e) elevator pit with (n) concrete pit

Issued
Dec 15, 2023251 Rhode Island St

Lobby improvement: demolition of non-structural partitions, new non structural partitions, millwork, door assemblies, light fixtures, ceiling assemblies and finishes. new interior stairs

Complete
Sep 15, 20231700 Pine St

Barrier removal, upgrade (e) stair from basement to level 1 and 2 to meet accessibility requirements per 11b-504

Complete
Sep 22, 2022701 Irving St

Install replacement atm site improvements to create accesible landing for atm infill window in atm room

Complete
May 12, 2022433 Cortland Av

Removal of (1) street facing atm and infill opening. add new exterior door. removal of 2 interior atms and infill openings. addition of interior partition. upgrades to exterior landing at atm and new exterior door.

Complete
Feb 22, 202255 New Montgomery St

Addition of a new roof deck on the 9th lvl or 8th floor roof converting this level to an occupied roof deck as amentity to the commercial office. new 735 sf roof deck, roof deck planters, egress paths, perimeter guard rails, new 2-stop elevator for accessibility & extending two mstairs to roof.

Approved
Feb 11, 2022550 California St #0

To comply w/nov #202286616. repairs to sub-sidewalk basement roof slab

Complete
Feb 1, 2022444 Castro St

Revision to pa# 202008081397. 4x4 cut structural revisions to fix.

Complete
Dec 1, 20213251 20th Av

Suite# op109: change occupancy from restraurant to lending institution. t.i. including: exterior storefront w/ structural columns & headers, interior non-bearing partitions, millwork & interior finishes, electrical power & lighting, mechanical distribution, plumbing fixtures.

Withdrawn
Sep 8, 20211995 Union St

To remove (e) vault located at the bank of america which is being decommissioned,adding a bath. bank is vacant space. adding one new restroom & associated mep

Complete
Dec 18, 20204638 Mission St

Replace existing through the wall atm with newer model. recess floor at new atm per accessibility reach range requirement.

Complete
Jan 16, 2020800 Irving St

Interior ti of existing bank. to include: new finishes, partitions, mechanical, electrical and plumbing equipment.

Complete
Mar 15, 20191455 Stockton St

Interior ti new partial height partitions. new wellness room, new unisex restroom ada teller accessibility compliance, new lighting,mep

Complete
Dec 13, 20174638 Mission St #0

Voluntary accessibility barrier removal project to relocate (e) interior atm to provide proper turning radius for wheelchair. no work on exterior.

Issued
Aug 10, 2017245 Market St

Demo partitions, doors, millwork, floor & mep. create offices, ada restrooms, breakroom, load bearing partitions, mep

Complete
Jul 21, 2015430 Bush St

Demo(e)non-load bearing partitions,ceilings,ductwork,elec conduit& plumbing fixtures.install new ceiling,interior partitions,lighting,doors, finishes&plumbing fixtures.alter both mech&elec sys.refinish interior side(e)exterior window frames.n/a maher ord.

Complete
May 15, 2014430 Bush St

Demolition of (e) non load bearing partition, ceiling & finishes. install new non-load bearing partition, ceiling & finishes. modification of (e) mechanical, electrical & plumbing distribution system. replace (e) windows glazing. 1 hr on building sides & non rated on bush street side. replace

Filed
Jan 16, 20131455 Market St

Partial demo of stucco walls and removal of some (e) precast solid panels. the installation of new glazed openings with top and bottom (head & sill) precast panels at the (e) precast conditions. the glazing to match the (e) glazing look

Issued
Nov 21, 20121455 Market St

Removal of (3) existing precast panels, the installation of (3) new glazed openings and new precast concrete, sills and headers.

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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