355 Carrera Dr
Mill Valley 94941 · Tamalpais · Unincorporated Marin · Coordinates: 37.87004, -122.53026
Parcel & Assessor
- Lot size:
- 8,538 sq ft (0.20 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 355 CARRERA DR
Zoning & Land Use
RSP-4 — Residential Single Family Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RSP-4 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RSP-4, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RSP-4, a single-family residential zone. The lot is 8,538 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (State Responsibility Area) (all of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0507E, effective March 16, 2016
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,877,000 – $2,389,000 · Status: Off market
HUD Small Area FMR (ZIP 94941) · FY 2026
Studio $2,730 · 1BR $3,270 · 2BR $3,960 · 3BR $5,060 · 4BR $5,240
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 355 Carrera Dr (Applied)On this parcel
Active in "Applied" for 12 mo (first record Oct 21, 2025) with no new permit activity recorded in 12 mo.
- New home at 535 Tennessee Valley Rd (adu 531) (Issued)0.28 mi NE
Active in "Issued" for 6 yr (first record Oct 29, 2020) with no new permit activity recorded in 4 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 1 permit).
- Accessory dwelling unit at 318 Via Recodo (Applied)0.12 mi W
Active in "Applied" for 7.3 yr (first record Jun 25, 2019) with no new permit activity recorded in 7.3 yr.
- Accessory dwelling unit at 387 Countyview Dr (Applied)0.26 mi NW
Active in "Applied" for 5.1 yr (first record Sep 3, 2021) with no new permit activity recorded in 5.1 yr.
Permit & Project History on This Parcel (5 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B46638 | Electrical / panel | Issued | Iss. Apr 30, 2026 | $19,900 | Service Upgrade |
| 93648 | Accessory dwelling unit (new or conversion) | Applied | App. Oct 21, 2025 | $225,000 | Convert Basement To J A D U; Decks, Stairs; Window Replacements/Additions |
| 168946 | Solar / battery storage | Issued | Iss. Jul 28, 2021 | $14,000 | 4.76 Kw Rooftop Photovoltaic - Express |
| B22525 | Electrical / panel | Issued | Iss. May 6, 2020 | $1,700 | Replace antiquated 100amp underground electrical service equipment — Service Upgrade |