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447 Clipper St

San Francisco permit 202305117567 · Noe Valley

Retaining wall or site work (type unconfirmed)Full plan reviewComplete
Street view · Apr 2019
Google Street View of 447 Clipper St, Apr 2019
Scope of work
As written on the permit application.

New subterranean garage. no increase to habitable area.

Timeline
Key dates from the city record.
Filed
May 11, 2023
Issued
Feb 25, 2025 (22 months after filing)
Completed
Apr 21, 2026 (14 months after issuance)

For comparison, San Francisco permits with the same review (full plan review) filed in 2023 typically took 9 months to be issued (median of 574 issued permits).

City plan review
Each review stop the plans went through, from the city's routing record.
Review stops
18 stops across 3 departments
Comments issued
5 times, by Building Inspection, Public Works
Review stopFinishedResult

Central Permit Bureau

Building Inspection · CPB

May 12, 2023—

Zoning review

Planning · CP-ZOC

Nov 29, 2023Approved

Permit Processing Center

Building Inspection · PPC

Feb 25, 2025Administrative

Planning neighborhood notice

Planning · CP-NP

Oct 5, 2023Approved

Building plan review

Building Inspection · BLDG

Feb 2, 2024Issued Comments

Mechanical and energy plan review

Building Inspection · MECH

Jan 30, 2024Issued Comments

Street use and mapping

Public Works · DPW-BSM

Dec 11, 2023Issued Comments

Urban forestry

Public Works · DPW-BUF

Jan 2, 2024Issued Comments

Mechanical and energy plan review

Building Inspection · MECH

Jan 30, 2024Approved

Urban forestry

Public Works · DPW-BUF

May 28, 2024Approved-Stipulated

Street use and mapping

Public Works · DPW-BSM

Jul 26, 2024Approved

Building plan review

Building Inspection · BLDG

Oct 17, 2024Approved

Zoning review

Planning · CP-ZOC

Jan 13, 2025Approved

Mechanical and energy plan review

Building Inspection · MECH

Oct 15, 2024Approved

Street use and mapping

Public Works · DPW-BSM

Oct 17, 2024Approved

Urban forestry

Public Works · DPW-BUF

Oct 11, 2024Issued Comments

Urban forestry

Public Works · DPW-BUF

Dec 23, 2024Approved

Central Permit Bureau

Building Inspection · CPB

Feb 25, 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
Additions alterations or repairs
Status
Complete
Estimated cost
$95,000
People named on this permit
Only people we matched to a California license are listed.
NameRoleLicense on permit
Mason Robert Kirby

Mason Kirby Inc.

ArchitectC-29468
Donald David

Double D Engineering

EngineerS3928
Sources
Everything on this page comes from public records. Check them yourself.
Permit 202305117567 on the city's permit tracking site

San Francisco Department of Building Inspection, the official record