171 Oak Dr
San Rafael 94901 · Bayside Acres · Unincorporated Marin · Coordinates: 37.97601, -122.47546
Executive Verdict · Public-Records Synthesis
Zoned RSP-7.26-BFC in Unincorporated Marin with likely ministerial ADU eligibility and mapped FEMA VE flood due diligence; benchmark value $1,712,000 ($1,507,000–$1,917,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone RSP-7.26-BFC allows residential use qualifying for ministerial ADU review under state law (2 ADU permits permitted within ¼ mile in 36 months).
Source: Unincorporated Marin zoning · CA Gov. Code 66314
- ✓ 7 documented municipal building permits on file
On-parcel permit history is indexed through Feb 4, 2025, 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)
Watchouts & Due Diligence
- ! FEMA Special Flood Hazard Area (VE, about 55% of the lot of lot)
Zone VE: 1% annual chance flood (Special Flood Hazard Area) overlaps this parcel. Expect mandatory flood insurance for federally backed loans and floodplain elevation/mitigation rules for new units or SB 9 applications.
Source: FEMA National Flood Hazard Layer (parcel polygon)
- ! Delayed or open permit activity on this parcel
Other (148255): Issued after 20 mo — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,562).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 5 slow or stalled nearby projects within ½ mile
Closest lead: New home at 22 Beach Dr (0.21 mi SW, issued). 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 (~$20,138/yr at $1,712,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,678/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:
- 29,708 sq ft (0.68 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 171 OAK DR
Zoning & Land Use
RSP-7.26-BFC — Residential Single Family Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RSP-7.26-BFC (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotPossible, with conditions
Zoned RSP-7.26-BFC, a single-family residential zone. FEMA Special Flood Hazard Area (Zone VE) covers about 55% of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.
- SB 9: split into two lotsPossible, with conditions
Zoned RSP-7.26-BFC, a single-family residential zone. The lot is 29,708 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. FEMA Special Flood Hazard Area (Zone VE) covers about 55% of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.
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 VE: 1% annual chance flood (Special Flood Hazard Area) (about 55% of the lot); Zone X: minimal flood hazard (about 44% of the lot) · FIRM panel 06041C0476E, 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: $1,507,000 – $1,917,000 · Status: Off market
HUD Small Area FMR (ZIP 94901) · FY 2026
Studio $2,150 · 1BR $2,580 · 2BR $3,120 · 3BR $3,990 · 4BR $4,130
Developments Deserving Closer Investigation & Active Area Builders
- Other (148255) (Issued)On this parcel
Issued after 20 mo — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,562).
- New home at 22 Beach Dr (Issued)0.21 mi SW
Active in "Issued" for 3.4 yr (first record Jun 27, 2023) with no new permit activity recorded in 2.8 yr. High-impact scale (1 housing unit, $1,200,000 declared valuation across 1 permit).
- Accessory dwelling unit at 771 Pt San Pedro Rd (Applied)0.15 mi NW
In "Applied" for 4 yr (since Nov 15, 2022), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home at 726 Pt San Pedro Rd (Issued)0.23 mi W
Active in "Issued" for 3.6 yr (first record Apr 14, 2023) with no new permit activity recorded in 7 mo. High-impact scale (1 housing unit, $2,000,000 declared valuation across 1 permit).
Entity-resolved builders & contractors in ½ mile: Tannerbuilt Building And Design (3 on parcel, 3 in ½ mi · Remodel / interior alteration); Vanni Steve Construction (1 on parcel, 1 in ½ mi · Windows / doors / siding); William Gotelli Plumbing (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer); Doughty Bill (1 on parcel, 1 in ½ mi · Other); Gotelli Plumbing (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer).
Permit & Project History on This Parcel (7 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B41104 | Plumbing / water heater / sewer | Issued | Iss. Feb 4, 2025 | $8,000 | Replace 75 gallon natural gas water heater with same in same location — Replace Plumbing Fixtures(s) |
| 154571 | Windows / doors / siding | Issued | Iss. Feb 21, 2017 | $21,900 | Windows *Missing Application Form* |
| 149813 | Other | Issued | Iss. Nov 16, 2015 | $3,200 | Installation Of Dog Ramp T.D. 10/30/15 |
| 148255 | Other | Issued | Iss. Aug 4, 2015 | $3,500 | Stairs & Landing T.D. 11/12/14 ***Extend To8/4/2017 |
| 145566 | Remodel / interior alteration | Issued | Iss. Jan 21, 2015 |