Attached · Castro/Upper Market

4000A 21st St

In progress+1 unit on this lot · now 24 permits

1-ADU per state ADU per government code section 65852. 2; main residence under separate pa# 202209192659.

filed Sep 2024issued Sep 2025 · permit wait 1 year1 year 1 month since issue

waiting for permitconstructionrelated building permitelectrical permitplumbing permit

Declared value

$102,000

declared on the ADU permit

Permit wait

1 year

filed → issued

Build time

in progress

issued → completed

Builder

No contractor listed

Permits in this project

Permit	What	When	Declared
ADU permit	1-ADU per state ADU per government code section 65852. 2; main residence under separate pa# 202209192659. 202406053764	filed Sep 2024 · issued Sep 2025	$102k	city record
Electrical	Ufer underground installation(for main panel). E202510306754	Oct 30, 2025	—
Plumbing	Underground drainage, subdrainage into catch basin itself to comply with nov #202535486. PP20251030542	Oct 30, 2025 → Jul 30, 2026	—
Plumbing	Work category: 2pb; new 4" sewer lateral from inside the building to the curb. New 4" storm drain line from the inside of the building to the curb. New main water supply upgrade. Installation of sump pump ejection line. Adding a new ADU kitchen and bathroom. Installation of garage door trench drain. Installation of garage laundry and laundry sink. Install 2 new water heaters. PW20260226949	Feb 26, 2026	—

Trade permits show what work was done and when; the city does not record who pulled them.