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450 Irwin St

San Francisco permit 202505287353 · Mission Bay

Commercial or tenant improvementOver-the-counter, with plansComplete
Street view · Sep 2026
Google Street View of 450 Irwin St, Sep 2026
Scope of work
As written on the permit application.

2nd/fl: interior tenant improvement of approx. 2004 gsf of the existing use on the second floor, and exterior modifications tot eh roof for the additio of the erv unit to provide make-up air serving the area of the interior renovation.

Timeline
Key dates from the city record.
Filed
May 28, 2025
Issued
Jun 9, 2025 (within 1 month of filing)
Completed
Jun 2, 2026 (12 months after issuance)

For comparison, San Francisco permits with the same review (over-the-counter, with plans) filed in 2025 were typically issued within 1 month (median of 5,178 issued permits).

City plan review
Each review stop the plans went through, from the city's routing record.
Review stops
11 stops across 4 departments
Comments issued
Twice, by Building Inspection, Fire Department
Review stopFinishedResult

Intake

Building Inspection · INTAKE

May 28, 2025Administrative

Zoning review

Planning · CP-ZOC

May 28, 2025Not Applicable

Building plan review

Building Inspection · BLDG

May 29, 2025Approved

Structural plan approval

Building Inspection · PAD-STR

May 29, 2025Approved

Electrical plan review

Building Inspection · MECH-E

May 29, 2025Issued Comments

Fire prevention review

Fire Department · SFFD

May 29, 2025Issued Comments

Mechanical and energy plan review

Building Inspection · MECH

Jun 4, 2025Approved

Electrical plan review

Building Inspection · MECH-E

Jun 4, 2025Approved

Public Utilities Commission review

Public Utilities · SFPUC

Jun 4, 2025Approved

Fire prevention review

Fire Department · SFFD

Jun 6, 2025Approved

Central Permit Bureau

Building Inspection · CPB

Jun 9, 2025Administrative

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
Complete
Estimated cost
$180,000
People named on this permit
Only people we matched to a California license are listed.
NameRoleLicense on permit
Joshua Sawyer Cohn

C A Architects

ArchitectC23410
Sources
Everything on this page comes from public records. Check them yourself.
Permit 202505287353 on the city's permit tracking site

San Francisco Department of Building Inspection, the official record