Converted · ground-floor conversion · Potrero Hill
558 Mississippi St
In progress+1 unit on this lot · now 22 permits
Convert existing lower level to ADU 545 sq ft with a bedroom added to the rear side below deck. ADU includes 1-bedroom, 1-bath, a kitchen, a living room and a dining room.
filed Jun 2025issued Apr 2026 · permit wait 10 months6 months since issue
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$194,483
declared on the ADU permit
Permit wait
10 months
filed → issued
Build time
in progress
issued → completed
Builder
No contractor listed
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | Convert existing lower level to ADU 545 sq ft with a bedroom added to the rear side below deck. ADU includes 1-bedroom, 1-bath, a kitchen, a living room and a dining room. 202505237158 | filed Jun 2025 · issued Apr 2026 | $194k | city record |
| Plumbing | Work category: 2pb; replace 25' of 4" sewer lateral from the house to the house trap. PW20260902764 | Sep 2, 2026 → Sep 17, 2026 | — |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 4102, lot 011
- Why we call it an ADU
- SF DBI flagged the permit as an ADU.