Jon Yukio Yokoyama
- Listed as
- architect, engineer
- Firm
- Paradigm Structural Engineers
- Based in
- San Francisco
- On San Francisco permits
- May 2012 to Apr 2026
22 permits since 2000 (engineer on 21 permits, architect on 1 permit): 14 completed, 2 in progress, 5 never finaled, 1 expired or cancelled.
This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. How to read these records
Most recent permits
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Apr 29, 2026 | In progress issued Apr 2026 | 38 Hotaling Pl | Aidan Collins & Sons Inc | platform slab extension of (e) elevator machine room, to be done in concreteDetails
platform slab extension of (e) elevator machine room, to be done in concrete | $5,500 |
| Nov 5, 2025 | Completed final sign-off Feb 2026 | 445 Powell St | Clune Construction Company L P | 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 wayDetails
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 | $110,000 |
| Oct 16, 2025 | In progress issued Nov 2025 | 38 Hotaling Pl | Aidan Collins & Sons Inc | replacement of (e) elevator pit with (n) concrete pitDetails
replacement of (e) elevator pit with (n) concrete pit | $13,000 |
| Dec 15, 2023 | Completed final sign-off Jul 2025 | 251 Rhode Island St | Marchetti Group | lobby improvement: demolition of non-structural partitions, new non structural partitions, millwork, door assemblies, light fixtures, ceiling assemblies and finishes. new interior stairsDetails
lobby improvement: demolition of non-structural partitions, new non structural partitions, millwork, door assemblies, light fixtures, ceiling assemblies and finishes. new interior stairs | $1,038,424 |
| Sep 15, 2023 | Completed final sign-off Jul 2026 | 1700 Pine St | Hitt Contracting Inc. | barrier removal, upgrade (e) stair from basement to level 1 and 2 to meet accessibility requirements per 11b-504Details
barrier removal, upgrade (e) stair from basement to level 1 and 2 to meet accessibility requirements per 11b-504 | $125,000 |
| Sep 22, 2022 | Completed final sign-off May 2023 | 701 Irving St | Powerhouse Retail Services Llc | install replacement atm site improvements to create accesible landing for atm infill window in atm roomDetails
install replacement atm site improvements to create accesible landing for atm infill window in atm room | $95,000 |
| May 12, 2022 | Completed final sign-off Apr 2024 | 433 Cortland Av | Evans & Son Inc | 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.Details
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. | $75,000 |
| Feb 22, 2022 | Never finaled filed Feb 2022, never issued | 55 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.Details
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. | $900,000 | |
| Feb 11, 2022 | Completed final sign-off Oct 2022 | 550 California St | G L C Construction Company Inc | to comply w/nov #202286616. repairs to sub-sidewalk basement roof slabDetails
to comply w/nov #202286616. repairs to sub-sidewalk basement roof slab | $200,000 |
| Feb 1, 2022 | Completed final sign-off Mar 2022 | 444 Castro St | Gidel & Kocal Construction Co Inc | revision to pa# 202008081397. 4x4 cut structural revisions to fix.Details
revision to pa# 202008081397. 4x4 cut structural revisions to fix. | |
| Dec 1, 2021 | Expired or cancelled withdrawn Jan 2022 | 3251 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.Details
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. | $812,000 | |
| Sep 8, 2021 | Completed final sign-off Jul 2022 | 1995 Union St | G Swanson Constr. Inc. | 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 mepDetails
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 | $197,000 |
| Dec 18, 2020 | Completed final sign-off Jul 2021 | 4638 Mission St | Deb Construction Llc | replace existing through the wall atm with newer model. recess floor at new atm per accessibility reach range requirement.Details
replace existing through the wall atm with newer model. recess floor at new atm per accessibility reach range requirement. | $4,000 |
| Jan 16, 2020 | Completed final sign-off Feb 2021 | 800 Irving St | interior ti of existing bank. to include: new finishes, partitions, mechanical, electrical and plumbing equipment.Details
interior ti of existing bank. to include: new finishes, partitions, mechanical, electrical and plumbing equipment. | $500,000 | |
| Mar 15, 2019 | Completed final sign-off Nov 2019 | 1455 Stockton St | G Swanson Constr. Inc. | interior ti new partial height partitions. new wellness room, new unisex restroom ada teller accessibility compliance, new lighting,mepDetails
interior ti new partial height partitions. new wellness room, new unisex restroom ada teller accessibility compliance, new lighting,mep | $860,000 |
| Dec 13, 2017 | Never finaled issued Dec 2017, no final | 4638 Mission St | Clune Construction Company L P | voluntary accessibility barrier removal project to relocate (e) interior atm to provide proper turning radius for wheelchair. no work on exterior.Details
voluntary accessibility barrier removal project to relocate (e) interior atm to provide proper turning radius for wheelchair. no work on exterior. | $26,065 |
| Aug 10, 2017 | Completed final sign-off Sep 2019 | 245 Market St | Clune Construction Company L P | demo partitions, doors, millwork, floor & mep. create offices, ada restrooms, breakroom, load bearing partitions, mepDetails
demo partitions, doors, millwork, floor & mep. create offices, ada restrooms, breakroom, load bearing partitions, mep | $1,500,000 |
| Jul 21, 2015 | Completed final sign-off Jun 2016 | 430 Bush St | Paradigm General Contractors | 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.Details
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. | $3,500,000 |
| May 15, 2014 | Never finaled filed May 2014, never issued | 430 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. replaceDetails
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 | $3,000,000 | |
| Jan 16, 2013 | Never finaled issued Apr 2013, no final | 1455 Market St | City Building Inc. | 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 lookDetails
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 | $1,200,000 |
| Nov 21, 2012 | Never finaled issued Feb 2013, no final | 1455 Market St | City Building Inc. | removal of (3) existing precast panels, the installation of (3) new glazed openings and new precast concrete, sills and headers.Details
removal of (3) existing precast panels, the installation of (3) new glazed openings and new precast concrete, sills and headers. | $300,000 |
| May 30, 2012 | Completed final sign-off Mar 2013 | 153 Townsend St | Skyline Construction | 8th floor-installation of new roll down door , structural work for new roll down door, interior work only. refer pa# 2012-0416-8322Details
8th floor-installation of new roll down door , structural work for new roll down door, interior work only. refer pa# 2012-0416-8322 | $5,000 |