Permit 202209192659

4000 21st St

vertical addition to (e) single family home. convert (e) storage space at 1st fl to living space. renovate (e) street facing and rear facing facades.

Outcome

In progress (city status: issued, Aug 21, 2025)

Filed

Sep 19, 2022

Permit issued

Aug 21, 2025

Declared cost

$495,000

Building use

1 family dwelling

Neighborhood

Castro/Upper Market

Contractor

Owner-builder: the owner is listed as the builder, so no contractor is ranked for this permit

Property

All permits at this address (block 2751, lot 006H)

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.

Owner-builder

Owner

Architect

Ryan Knock, Knock Arch & Design (license C31156), applicant

Engineer

Erevan O'neill, One Design (license 75459)

Engineer

Jefferson Chen, Enertia Designs (license C057898)

Subcontractor

Rene A. Reyes-Aguiluz, Mosvaler Construction Inc (license 1036969)