123 Ricardo Rd
Mill Valley 94941 · Strawberry · Unincorporated Marin · Coordinates: 37.89589, -122.50740
Executive Verdict · Public-Records Synthesis
Zoned R1-B1 in Unincorporated Marin with likely ADU & SB 9 infill eligibility and zero mapped flood, fire, or fault hazard overlaps; benchmark value $2,194,000 ($1,931,000–$2,457,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned R1-B1 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 8,233 sq ft lot. Local precedent is active with 7 ADU permits within ¼ mile over the last 36 months.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$12,995 contributory est.)
Public building records show issued construction/renovation work on this parcel (5 total permits, latest Jun 4, 2026).
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. 16.4 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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home at 218 Meda Ln (0.22 mi S, applied). 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 (~$25,681/yr at $2,194,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$2,140/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:
- 8,233 sq ft (0.19 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 123 RICARDO RD
Zoning & Land Use
R1-B1 — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1-B1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R1-B1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1-B1, a single-family residential zone. The lot is 8,233 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
- 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: $1,931,000 – $2,457,000 · 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 November 2024)
17 active or recent development projects (16 housing units across completed, permitted, and pipeline stages) and 379 total building permits recorded within ½ mile.
- New construction8 permits (2 units)
- Adds housing (ADU)9 permits (9 units)
- Demolition3 permits
- Additions & renovations40 permits
- Building systems266 permits
- Repairs8 permits
- Other45 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home at 218 Meda Ln (Applied)0.22 mi S
In "Applied" for 6.5 yr (since Apr 30, 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, $850,000 declared valuation across 1 permit).
- New home at 82 Vista Del Sol (Issued)0.12 mi W
Active in "Issued" for 12.3 yr (first record Aug 7, 2014) with no new permit activity recorded in 12.1 yr. High-impact scale (1 housing unit, $1,000,000 declared valuation across 1 permit).
- New home at 153 Richardson Dr (adu 153a) (Issued)0.12 mi N
Active in "Issued" for 3.4 yr (first record Jun 5, 2023) with no new permit activity recorded in 16 mo. High-impact scale (1 housing unit, $1,493,000 declared valuation across 1 permit).
- New commercial building at 118 E Strawberry Dr (Applied)0.16 mi NE
Active in "Applied" for 8.1 yr (first record Oct 3, 2018) with no new permit activity recorded in 8.1 yr. High-impact scale ($1,600,000 declared valuation across 1 permit).
Entity-resolved builders & contractors in ½ mile: Jemico (2 on parcel, 2 in ½ mi · Windows / doors / siding); Sunrun Installation Services (1 on parcel, 1 in ½ mi · Solar / battery storage); Moore Home Services (1 on parcel, 1 in ½ mi · Other); Moore Services (1 on parcel, 1 in ½ mi · HVAC / heat pump); Regency General Contractors (151 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (5 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B47019 | Other | Issued | Iss. Jun 4, 2026 | $14,720 | Replace Mechanical Appliance |
| B40135 | Solar / battery storage | Issued | Iss. Nov 11, 2024 | $31,390 | PV SOLAR 8100W DC, 23000W AC, (20) MODULES, (2) 13.5KWh ESS, New 100AMP sub-panel to be installed |
| B29618 | Windows / doors / siding | Issued | Iss. May 31, 2022 | $27,741 | Replacing 6 Retrofit Windows — Non-structural Door/Window Replacement |
| B22220 | Windows / doors / siding | Issued | Iss. Mar 3, 2020 | $14,503 | <p>Replacing 4 windows, 1 picture and 3 (garden) window</p><ul><li>4 living room </li></ul> — Non-structural Door/Window… |
| B15409 | HVAC / heat pump | Issued | Iss. Jul 16, 2018 | $4,250 | replace A/C — Replace Mechanical Appliance |