451 Pacific Av

San Francisco permit 202510036734 · Chinatown

Commercial or tenant improvementOver-the-counter, with plansIssued

Street view · Sep 2026

Google Street View of 451 Pacific Av, Sep 2026

Scope of work

As written on the permit application.

1st floor: interior office build-out of level 1 and level2 mezzanine (l1 +lm1). scope includes construction of new non-load bearing partitions, doors, and door hardware, interior glazing ceilings, light fixtures, millwork, and associated finishes.

Timeline

Key dates from the city record.

Filed: Oct 3, 2025
Issued: Jan 8, 2026 (3 months after filing)
Completed: Not completed yet

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: 8 stops across 3 departments
Comments issued: Twice, by Building Inspection

Review stop	Arrived	Finished	Result
Intake Building Inspection · INTAKE	Oct 3, 2025	Oct 3, 2025	Administrative
Mechanical and energy plan review Building Inspection · MECH	Dec 1, 2025	Dec 1, 2025	Issued Comments
Building plan review Building Inspection · BLDG	Dec 16, 2025	Dec 16, 2025	Issued Comments
Mechanical and energy plan review Building Inspection · MECH	Dec 16, 2025	Dec 16, 2025	Approved-Stipulated
Zoning review Planning · CP-ZOC	Dec 22, 2025	Dec 22, 2025	Not Applicable
Building plan review Building Inspection · BLDG	Dec 22, 2025	Dec 22, 2025	Approved
Public Utilities Commission review Public Utilities · SFPUC	Dec 22, 2025	Dec 22, 2025	Approved
Central Permit Bureau Building Inspection · CPB	Jan 8, 2026	Jan 8, 2026	Administrative

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: $150,000

People named on this permit

Only people we matched to a California license are listed.

Name	Role	License on permit
Michael Joseph Castro Michael Castro	Architect	C24073

Sources

Everything on this page comes from public records. Check them yourself.

Permit 202510036734 on the city's permit tracking site

San Francisco Department of Building Inspection, the official record

DataSF Building PermitsAddress, scope, cost, dates and status
Retrieved Nov 5, 2026
DataSF Building Permit ContactsArchitects and engineers named on the permit
Retrieved Nov 5, 2026
DataSF Building Permit Addenda with RoutingPlan review stops and results
Retrieved Nov 6, 2026
Google Street ViewStreet photo
Taken Sep 2026