Converted · garage conversion · Mission
3434 18th St
Completed Sep 2023+3 units on this lot · now 1112 permits
Proposed conversion of garage (6 parking spaces) into 3 accessory dwelling units. Includes structural, mechanical, electrical, & plumbing work. Addition of dwelling units per ordinance nos. 162-16, 95-17 & 162-17.
filed Aug 2021issued Jan 2022 · permit wait 5 monthscompleted Sep 2023 · built in 1 year 8 months
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$641,234 for 3 ADUs
one permit, 3 units; not a per-unit price
Permit wait
5 months
filed → issued
Build time
1 year 8 months
issued → completed
Builder
Nibbi Bros Associates INCAlso on this project: Pacific Signaling Systems, Madden Plumbing LLC, Golden Gate Sign Company Incorporated
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | Proposed conversion of garage (6 parking spaces) into 3 accessory dwelling units. Includes structural, mechanical, electrical, & plumbing work. Addition of dwelling units per ordinance nos. 162-16, 95-17 & 162-17. 202108096059 · Nibbi Bros Associates INC | filed Aug 2021 · issued Jan 2022 · done Sep 2023 | $600k | city record |
| Related permit | Provide new fire alarm to an existing building. Ref pa# 202108096059. 202112204737 · cites 202108096059 · Pacific Signaling Systems | filed Dec 2021 · issued Jan 2022 · done May 2025 | $25k | city record |
| Sprinklers | Fire sprinkler syste: 24 sprinklers underground 16ft-6in. Ref pa202108096059. 202203180292 · Madden Plumbing LLC | filed Mar 2022 · issued Mar 2022 · done Oct 2022 | $13k | city record |
| Related permit | Noniluminated exterior wall sign "mission housing". 202208220956 · Golden Gate Sign Company Incorporated | filed Aug 2022 · issued Sep 2022 · done Nov 2022 | $3,000 | city record |
| Address | Per pa #202108096059, add addresses to three new accessory units as; 50, 52, 54 san carlos st. M1229367 · cites 202108096059 | filed Nov 2022 · issued Nov 2022 | $634 | city record |
| Electrical | Electrical work only regarding proposed conversion of garage (6 parking spaces) into 3 accessory dwelling units. Install electrical infrastructure for 3 new ADU's, new 600a electrical service, 3 sub panels, new lighting, receptacles, & controls, and new fire alarm system. EW202201110703 | Jan 11, 2022 → Jun 2, 2023 | — | |
| Electrical | Electrical work only regarding interior remodels of units 1, 2, 3, 4, 5, 6, 7 & 8 and common areas. Executive directive 13-01 (100% affordable priority process) privately funded. EW202201200872 | Jan 20, 2022 → Oct 21, 2022 | — | |
| Plumbing | Work category: 4pb; overhead wet fire sprinkler system throughout (3) ADU's on ground floor. Includes underground service. PW20220405310 | Apr 5, 2022 → Oct 20, 2022 | — | |
| Plumbing | Work category: 2pa; replacement of fixtures throughout upper units kitchens and bathrooms. Installation of (8) new electric hybrid water heaters. PW20220629762 | Jun 29, 2022 → Jun 30, 2022 | — | |
| Plumbing | Work category: 2m; 3 new ADU units - (3) new heat pump-erv. PMW20220706930 | Jul 6, 2022 → Jul 13, 2022 | — | |
| Plumbing | Work category: 3ma; 8 units - new ptac at each unit. PMW20220706929 | Jul 6, 2022 → Jul 13, 2022 | — | |
| Plumbing | Work category: 1p; renewal of expired plumbing permit pw20220204589. PW20230601453 | Jun 1, 2023 → Jun 8, 2023 | — |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 3576, lot 032
- Why we call it an ADU
- SF DBI flagged the permit as an ADU.