900 Redwood Hwy Frontage Rd
Mill Valley 94941 · Strawberry · Unincorporated Marin · Coordinates: 37.90037, -122.51508
Executive Verdict · Public-Records Synthesis
Zoned RMPC in Unincorporated Marin with likely ministerial ADU eligibility and zero mapped flood, fire, or fault hazard overlaps; benchmark value $2,370,000 ($2,086,000–$2,654,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone RMPC allows residential use qualifying for ministerial ADU review under state law.
Source: Unincorporated Marin zoning · CA Gov. Code 66314
- ✓ 7 documented municipal building permits on file
On-parcel permit history is indexed through Aug 18, 2023, letting you verify roof, HVAC, electrical, or structural work against seller disclosures.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
- ✓ Above-average reinvestment in Strawberry
43 substantial renovation & housing permits over 24 months (28.4 per 1,000 parcels vs. 16.3 citywide baseline) (#1 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Strawberry)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: minimal flood hazard)
all of the lot of the parcel intersects Zone X: minimal flood hazard. Outside mandatory federal SFHA insurance rules, but check local drainage and finished-floor requirements.
Source: FEMA National Flood Hazard Layer (parcel polygon)
- ! Delayed or open permit activity on this parcel
Electrical / panel (174784): Issued after 15 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,020).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 2 slow or stalled nearby projects within ½ mile
Closest lead: Bayfront Terrace (0.5 mi SW, entitled). Inspect timeline history before assuming near-term completion.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · HCD APR (½-mile radius)
- ! Year 1 Prop 13 tax reset (~$27,705/yr at $2,370,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$2,309/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Parcel & Assessor
- Lot size:
- 42,776 sq ft (0.98 ac)
- Assessor use:
- Commercial - Improved
- Addresses on lot:
- 900 REDWOOD HWY FRONTAGE RD
Zoning & Land Use
RMPC — Residential Commercial Multiple Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RMPC (mixed use): 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 RMPC (mixed use), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned RMPC (mixed use), not a single-family residential zone.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Not in a State-mapped fire hazard severity zone
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0469F, 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: $2,086,000 – $2,654,000 · 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
- Bayfront Terrace (Entitled)0.5 mi SW
In "Entitled" for 2.8 yr (since Feb 5, 2024), exceeding the 292d median and 313d 90th percentile for new multifamily / condos / mixed-use permits in Unincorporated Marin (n=21). High-impact scale (45 housing units, 44 deed-restricted affordable across 0 permits).
- New home at 55 Thomas Dr (Applied)0.4 mi NE
In "Applied" for 6.2 yr (since Sep 1, 2020), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121). High-impact scale (1 housing unit, $1,000,000 declared valuation across 1 permit).
- Electrical / panel (174784) (Issued)On this parcel
Issued after 15 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,020).
- Electrical / panel (169741) (Issued)On this parcel
Issued after 4 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,020).
Entity-resolved builders & contractors in ½ mile: Jb Signs (2 on parcel, 2 in ½ mi · Electrical / panel); James Petersen Industries (1 on parcel, 1 in ½ mi · Roof replacement); Jd Electric (1 on parcel, 1 in ½ mi · Electrical / panel); Electrix (1 on parcel, 1 in ½ mi · Electrical / panel); Brumbaugh Enterprises Dba Electrix (1 on parcel, 1 in ½ mi · Electrical / panel).
Permit & Project History on This Parcel (7 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 174784 | Electrical / panel | Issued | Iss. Aug 18, 2023 | $125,000 | Ev Chargers At Porsche Marin S M F D |
| B28262 | HVAC / heat pump | Issued | Iss. Jan 6, 2022 | $4,500 | Replace (2) failed Reznor ductless heating units in service bay warehouse. — Replace Mechanical Appliance |
| 169741 | Electrical / panel | Issued | Iss. Oct 26, 2021 | $26,328 | Repl Illum Sign T.D. 10/27/21 |
| B22262 | Roof replacement | Issued | Iss. Mar 6, 2020 | $171,550 | Remove built up roofing, install new single ply pvc roofing to 3 roof decks — ReRoofing |
| 154643 | Electrical / panel | Issued | Iss. Feb 28, 2017 |