373 A Countyview Dr
Mill Valley 94941 · Tamalpais · Unincorporated Marin · Coordinates: 37.87264, -122.53216
Parcel & Assessor
- Lot size:
- 10,367 sq ft (0.24 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 373A COUNTYVIEW DR; 373 COUNTYVIEW DR
Zoning & Land Use
RMP-2.5 — Residential Multiple Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RMP-2.5 (multifamily residential): state law allows ADUs where homes are allowed. On a multifamily lot the state allowance is different: ADUs in non-living space of the building, plus up to eight detached ADUs.
- SB 9: two homes on the lotUnlikely
Zoned RMP-2.5 (multifamily residential), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned RMP-2.5 (multifamily residential), not a single-family residential zone.
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 06041C0510E, effective August 15, 2017
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $2,101,000 – $2,675,000 · 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
Nearby Activity (½ mile radius, since October 2024)
9 active or recent development projects (9 housing units across completed, permitted, and pipeline stages) and 315 total building permits recorded within ½ mile.
- New construction10 permits (2 units)
- Adds housing (ADU)7 permits (7 units)
- Additions & renovations24 permits
- Building systems222 permits
- Repairs13 permits
- Other39 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home at 535 Tennessee Valley Rd (adu 531) (Issued)0.33 mi E
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 403 Marin Ave (adu 403a) (Issued)0.42 mi NW
Active in "Issued" for 2.9 yr (first record Dec 21, 2023) with no new permit activity recorded in 18 mo. High-impact scale (1 housing unit, $1,000,000 declared valuation across 1 permit).
- New home at 469 W Live Oak Dr (aka 461) (Issued)0.49 mi NW
Active in "Issued" for 6 yr (first record Oct 22, 2020) with no new permit activity recorded in 21 mo. High-impact scale (1 housing unit, $980,000 declared valuation across 1 permit).
- New home at 407 Spruce St (Issued)0.49 mi NW
Active in "Issued" for 7.6 yr (first record Mar 14, 2019) with no new permit activity recorded in 7.4 yr. High-impact scale (1 housing unit, $750,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 175034 | Accessory dwelling unit (new or conversion) | Issued | Iss. Sep 22, 2023 | $50,000 | C O U Portion Of 1st Flr To J A D U; Legalize Basement A D U; (N) Laundry & Closets At Entry; (N) Door On 1st Flr |
| B29541 | Roof replacement | Issued | Iss. Apr 26, 2022 | $14,100 | Carport Only - Remove existing roof down to sheathing. Furnish & Install one layer of self granulated cap sheet. — ReRoo… |
| B24556 | Roof replacement | Issued | Iss. Jan 6, 2021 | $10,375 | ***Rear Roof Section*** Remove existing 6 sq ft roofs down to sheathing. Prepare existing sheathing for new roof. Instal… |
| 146630 | Plumbing / water heater / sewer | Issued | Iss. Apr 13, 2015 | $1,800 | Relocate Gas Meter Per Pg&E |
State HCD Housing Element APR records on this parcel: 4 entries (report years 2023, 2024).