4733 18th St

San Francisco permit 202510066773 · Castro/Upper Market

AdditionOver-the-counter, with plansComplete

Street view · Sep 2026

Google Street View of 4733 18th St, Sep 2026

Scope of work

As written on the permit application.

Construct a 5'x0" x 12'-0" horizontal addition @ south corner of primary bedroom to create a small nursery including exterior walls and a window. no changes to building in height, number of stories or occupancy. addition not visible from street

Timeline

Key dates from the city record.

Filed: Oct 6, 2025
Issued: Oct 22, 2025 (within 1 month of filing)
Completed: Mar 4, 2026 (4 months after issuance)

For comparison, San Francisco permits with the same review (over-the-counter, with plans) filed in 2025 were typically issued within 1 month (median of 5,178 issued permits).

City plan review

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

Review stops: 8 stops across 3 departments
Comments issued: Once, by Building Inspection

Review stop	Arrived	Finished	Result
Intake Building Inspection · INTAKE	Oct 6, 2025	Oct 6, 2025	Administrative
Zoning review Planning · CP-ZOC	Oct 6, 2025	Oct 6, 2025	Approved
Building plan review Building Inspection · BLDG	Oct 6, 2025	Oct 6, 2025	Issued Comments
Zoning review Planning · CP-ZOC	Oct 16, 2025	Oct 16, 2025	Approved
Building plan review Building Inspection · BLDG	Oct 16, 2025	Oct 16, 2025	Approved
Mechanical and energy plan review Building Inspection · MECH	Oct 16, 2025	Oct 16, 2025	Approved
Fire prevention review Fire Department · SFFD	Oct 16, 2025	Oct 16, 2025	Approved
Central Permit Bureau Building Inspection · CPB	Oct 22, 2025	Oct 22, 2025	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: $16,500

People named on this permit

Only people we matched to a California license are listed.

Name	Role	License on permit
Lou Xiao Lx Engineering	Engineer	S5130

Sources

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

Permit 202510066773 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 Sep 2026