Permit GraphShortlistSan Francisco building permits since 2000

Permit 202511149687

640 Post St

voluntary upgrade (e) fire sprinkler system. to extend coverage throughout the building included 4in u/g fire service. 324 heads. warranty upgrade.

Outcome
In progress (city status: issued, Feb 17, 2026)
Filed
Dec 8, 2025
Permit issued
Feb 17, 2026
Declared cost
$95,000
Building use
apartments
Neighborhood
Nob Hill
Contractor
Madden Plumbing, Llc (license 825418)
Property
All permits at this address (block 0298, lot 009)

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
Madden Plumbing, Llc (license 825418)
Designer
Joe Tsang, Magnum Construction (no license listed), applicant