CheckMyDesigner

3421 20th St

San Francisco permit 202602105683 · Mission

Revision or supplementOver-the-counter, no plansIssued

This permit revises or supplements an earlier permit, so it is not counted in permit totals or timing.

Street view · Sep 2026
Google Street View of 3421 20th St, Sep 2026
Scope of work
As written on the permit application.

Recommencement and completion of work approved under 201803295058 and 202009275177

Timeline
Key dates from the city record.
Filed
Feb 10, 2026
Issued
Feb 10, 2026 (within 1 month of filing)
Completed
Not completed yet
City plan review
Each review stop the plans went through, from the city's routing record.
Review stops
3 stops across 1 department
Comments issued
None
Review stopFinishedResult

Building inspector

Building Inspection · BID-INSP

Feb 10, 2026—

Intake

Building Inspection · INTAKE

Feb 10, 2026Administrative

Central Permit Bureau

Building Inspection · CPB

Feb 10, 2026Administrative

Source: DataSF 87xy-gk8d (Building Permit Addenda with Routing), retrieved Nov 6, 2026. Reviewer names and notes are left out.

Permit details
Permit type
OTC alterations permit
Status
Issued
Estimated cost
$200,000
People named on this permit
Only people we matched to a California license are listed.
NameRoleLicense on permit
Ronald Gate Yu

Yuflux Engineering Llc.

EngineerC76647
Sources
Everything on this page comes from public records. Check them yourself.
Permit 202602105683 on the city's permit tracking site

San Francisco Department of Building Inspection, the official record