540 Junipero Serra Bl

San Francisco permit 202110069965 · West of Twin Peaks

Legalize or fix a violationFull plan reviewComplete

Street view · Jan 2023

Google Street View of 540 Junipero Serra Bl, Jan 2023

Scope of work

As written on the permit application.

Legalization of an one story horizontal addition of an (e) unconditioned sunroom @ rear of building in conjunction w/planning application 2021003961var

Timeline

Key dates from the city record.

Filed: Oct 6, 2021
Issued: Feb 16, 2023 (16 months after filing)
Completed: Jun 6, 2023 (4 months after issuance)

City plan review

Each review stop the plans went through, from the city's routing record.

Review stops: 11 stops across 2 departments
Comments issued: Not recorded for this permit
Put on hold: 5 times

The city lists the review stops for this permit but not their results, so we can't tell whether reviewers asked for changes.

Review stop	Arrived	Finished	Result
Building inspector Building Inspection · BID-INSP	Nov 1, 2021	Nov 1, 2021	—
Central Permit Bureau Building Inspection · CPB	Nov 10, 2021	Nov 10, 2021	—
Permit Processing Center Building Inspection · PPC	Nov 10, 2021	Dec 15, 2022	—
Zoning review Planning · CP-ZOC	Nov 12, 2021	Jan 12, 2022	—
Planning neighborhood notice Planning · CP-NP	Nov 19, 2021	Nov 30, 2021	—
Building plan review Building Inspection · BLDG	Jan 12, 2022	Nov 15, 2022	—
Mechanical and energy plan review Building Inspection · MECH	Jan 12, 2022	Nov 15, 2022	—
Structural plan approval Building Inspection · PAD-STR	Apr 5, 2022	Nov 10, 2022	—
Zoning review Planning · CP-ZOC	Nov 15, 2022	Nov 16, 2022	—
Structural plan approval Building Inspection · PAD-STR	Nov 15, 2022	Nov 29, 2022	—
Central Permit Bureau Building Inspection · CPB	Dec 15, 2022	Feb 16, 2023	—

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: $35,000

People named on this permit

Only people we matched to a California license are listed.

Name	Role	License on permit
J Mastro Cm Architects	Architect	C35515

Sources

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

Permit 202110069965 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 Jan 2023