4156 20th St

San Francisco permit 202309116288 · Castro/Upper Market

Home remodelOver-the-counter, with plansComplete

Street view · Feb 2021

Google Street View of 4156 20th St, Feb 2021

Scope of work

As written on the permit application.

Unit 1: convert storage to office space at basement. 4158b: new interior stair from first floor to basement. remove chimney. remodel downstair bath. unit 2: remove chimney and provide electric fire place.

Timeline

Key dates from the city record.

Filed: Sep 11, 2023
Issued: Nov 14, 2023 (2 months after filing)
Completed: Jan 29, 2026 (27 months after issuance)

For comparison, San Francisco permits with the same review (over-the-counter, with plans) filed in 2023 were typically issued within 1 month (median of 4,704 issued permits).

City plan review

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

Review stops: 9 stops across 4 departments
Comments issued: Once, by Planning

Review stop	Arrived	Finished	Result
Apartment and hotel inspection Building Inspection · HIS	Sep 11, 2023	Sep 11, 2023	—
Intake Building Inspection · INTAKE	Sep 11, 2023	Sep 11, 2023	Administrative
Building plan review Building Inspection · BLDG	Sep 14, 2023	Sep 14, 2023	Approved
Mechanical and energy plan review Building Inspection · MECH	Sep 14, 2023	Sep 14, 2023	Approved
Fire prevention review Fire Department · SFFD	Sep 14, 2023	Sep 14, 2023	Approved
Public Utilities Commission review Public Utilities · SFPUC	Sep 14, 2023	Sep 14, 2023	Approved
Zoning review Planning · CP-ZOC	Sep 18, 2023	Sep 18, 2023	Issued Comments
Zoning review Planning · CP-ZOC	Nov 9, 2023	Nov 9, 2023	Approved
Central Permit Bureau Building Inspection · CPB	Nov 14, 2023	Nov 14, 2023	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: Complete
Estimated cost: $109,000

People named on this permit

Only people we matched to a California license are listed.

Name	Role	License on permit
Kevin Peng S & K Consulting Eng.	Engineer	C74770

Sources

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

Permit 202309116288 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 Feb 2021