Permit 202504224948
1321 Columbus Av
upgrade (e) fire alarm system by replacing it with 1 addressable f/a unit, 1 wireless communicator next to facu, 5 addressable smoke detector, 1 addressable heat detector, 4 addressable manual pull station, 9 wall led horn strobe, 1 ceiling horn strobe, 18 lf horns to comply with sffc sec 1103.7.6.1
- Outcome
- Completed (city status: complete, May 15, 2025)
- Filed
- Apr 22, 2025
- Permit issued
- Apr 22, 2025
- Final sign-off
- May 15, 2025
- Declared cost
- $20,000
- Building use
- apartments
- Neighborhood
- Russian Hill
- Contractor
- Poly-On Security System Inc. (license 1044620)
- Property
- All permits at this address (block 0024, lot 024)
Everyone on the permit
The parties and license numbers written on the permit, as the city lists them; not a check with any state board. The person who paid the fee and the project contact are not shown.
- Contractor
- Poly-On Security System Inc. (license 1044620)
- Designer
- Billy Yau Ho Tsang, Poly-On Security System Inc. (license 1044620), applicant