4173 20th St

San Francisco permit 202404089560 · Castro/Upper Market

Legalize or fix a violationOver-the-counter, with plansComplete

Street view · Aug 2016

Google Street View of 4173 20th St, Aug 2016

Scope of work

As written on the permit application.

To comply w/ nov# 202316944: 1) demo (e) rotted entry stair; 2) replace three (e) stringers w/ (n) p.t. stringers; 3) add (n) painted redwood stair treads and risers to match (e) remaining stairs; existing non-conforming railings to remain

Timeline

Key dates from the city record.

Filed: Apr 8, 2024
Issued: Oct 21, 2024 (6 months after filing)
Completed: Sep 19, 2025 (11 months after issuance)

For comparison, San Francisco permits with the same review (over-the-counter, with plans) filed in 2024 were typically issued within 1 month (median of 4,701 issued permits).

City plan review

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

Review stops: 10 stops across 2 departments
Comments issued: Twice, by Building Inspection

Review stop	Arrived	Finished	Result
Apartment and hotel inspection Building Inspection · HIS	Mar 13, 2024	Mar 13, 2024	Approved
Building inspector Building Inspection · BID-INSP	Mar 13, 2024	Mar 13, 2024	Approved
Intake Building Inspection · INTAKE	Apr 8, 2024	Apr 8, 2024	Administrative
Zoning review Planning · CP-ZOC	Apr 8, 2024	Apr 8, 2024	Approved
Building plan review Building Inspection · BLDG	Apr 8, 2024	Apr 8, 2024	Issued Comments
Building plan review Building Inspection · BLDG	May 6, 2024	May 6, 2024	Issued Comments
Intake Building Inspection · INTAKE	Oct 18, 2024	Oct 18, 2024	Administrative
Zoning review Planning · CP-ZOC	Oct 18, 2024	Oct 18, 2024	Approved
Building plan review Building Inspection · BLDG	Oct 21, 2024	Oct 21, 2024	Approved
Central Permit Bureau Building Inspection · CPB	Oct 21, 2024	Oct 21, 2024	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: $7,000

People named on this permit

Only people we matched to a California license are listed.

Name	Role	License on permit
Matthew Vincent Stillwell	Engineer	C72410

Sources

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

Permit 202404089560 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 Aug 2016