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121 Chilton Av

San Francisco permit 201705237389 · West of Twin Peaks

Home remodel (type unconfirmed)Over-the-counter, with plansComplete
Street view · Mar 2025
Google Street View of 121 Chilton Av, Mar 2025
Scope of work
As written on the permit application.

Dig down basement to add 1 bedrooms & 1 bath. replace stair & elec wiring. patio in backyard. replacing 3 skylights. excavate = 23.1 yard. no work visible from street.

Timeline
Key dates from the city record.
Filed
May 23, 2017
Issued
Jul 19, 2017 (2 months after filing)
Completed
Aug 8, 2019 (25 months after issuance)
City plan review
Each review stop the plans went through, from the city's routing record.
Review stops
7 stops across 3 departments
Comments issued
Not recorded for this permit

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

Review stopFinishedResult

Intake

Building Inspection · INTAKE

May 23, 2017—

Zoning review

Planning · CP-ZOC

May 23, 2017—

Public Utilities Commission review

Public Utilities · SFPUC

May 24, 2017—

Mechanical and energy plan review

Building Inspection · MECH

May 26, 2017—

Mechanical and energy plan review

Building Inspection · MECH

Jun 6, 2017—

Building plan review

Building Inspection · BLDG

Jun 7, 2017—

Central Permit Bureau

Building Inspection · CPB

Jul 19, 2017—

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
$100,000
People named on this permit
Only people we matched to a California license are listed.
NameRoleLicense on permit
Weihong Yang

W.H.Yang Structural Engr

EngineerS5347
Sources
Everything on this page comes from public records. Check them yourself.
Permit 201705237389 on the city's permit tracking site

San Francisco Department of Building Inspection, the official record