300 Palm Ave
Kentfield 94904 · Kentfield · Unincorporated Marin · Coordinates: 37.95783, -122.54115
Executive Verdict · Public-Records Synthesis
Zoned RR-B2 in Unincorporated Marin with likely ministerial ADU eligibility and zero mapped flood, fire, or fault hazard overlaps; benchmark value $2,324,000 ($2,045,000–$2,603,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone RR-B2 allows residential use qualifying for ministerial ADU review under state law (4 ADU permits permitted within ¼ mile in 36 months).
Source: Unincorporated Marin zoning · CA Gov. Code 66314
- ✓ Documented permitted upgrades (+$6,400 contributory est.)
Public building records show issued construction/renovation work on this parcel (2 total permits, latest Jun 2, 2021).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
- ✓ Above-average reinvestment in Kentfield
103 substantial renovation & housing permits over 24 months (40.9 per 1,000 parcels vs. 16.3 citywide baseline) (#7 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Kentfield)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: 0.2% annual chance flood hazard (shaded X))
all of the lot of the parcel intersects Zone X: 0.2% annual chance flood hazard (shaded X). 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: Accessory dwelling unit at 34 Wolfe Grade (0.35 mi SE, 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 (~$27,176/yr at $2,324,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$2,265/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:
- 10,629 sq ft (0.24 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 300 PALM AVE
Zoning & Land Use
RR-B2 — Residential Restricted (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RR-B2 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotCan't tell
Zoned RR-B2 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
- SB 9: split into two lotsCan't tell
Zoned RR-B2 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
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: 0.2% annual chance flood hazard (shaded X) (all of the lot) · FIRM panel 06041C0458F, 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: $2,045,000 – $2,603,000 · Status: Off market
HUD Small Area FMR (ZIP 94904) · FY 2026
Studio $2,260 · 1BR $2,710 · 2BR $3,280 · 3BR $4,190 · 4BR $4,340
Nearby Activity (½ mile radius, since November 2024)
13 active or recent development projects (12 housing units across completed, permitted, and pipeline stages) and 436 total building permits recorded within ½ mile.
- New construction9 permits
- Adds housing (ADU)13 permits (13 units)
- Demolition2 permits
- Additions & renovations51 permits
- Building systems290 permits
- Repairs31 permits
- Other40 permits
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 34 Wolfe Grade (Applied)0.35 mi SE
In "Applied" for 2.8 yr (since Jan 17, 2024), 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, $750,000 declared valuation across 1 permit).
- New home at 49 Laurel Grove Ave (Issued)0.11 mi S
Active in "Issued" for 9.3 yr (first record Jul 18, 2017) with no new permit activity recorded in 9.1 yr. High-impact scale (1 housing unit, $1,200,000 declared valuation across 1 permit).
- New home at 29 Mann Dr (Issued)0.14 mi E
Active in "Issued" for 12.7 yr (first record Mar 6, 2014) with no new permit activity recorded in 12.4 yr. High-impact scale (1 housing unit, $1,030,000 declared valuation across 1 permit).
- New home at 105 Oak Ave (Issued)0.19 mi S
Active in "Issued" for 4.3 yr (first record Jul 15, 2022) with no new permit activity recorded in 14 mo. High-impact scale (1 housing unit, $965,000 declared valuation across 3 permits).
Entity-resolved builders & contractors in ½ mile: Tesla Energy (1 on parcel, 1 in ½ mi · Solar / battery storage); Hassler Heating And Airconditioning (1 on parcel, 1 in ½ mi · HVAC / heat pump); Owner Builder (47 in ½ mi · Remodel / interior alteration); Owner (38 in ½ mi · Remodel / interior alteration); Hendrickson Pools (13 in ½ mi · Pool / spa).
Permit & Project History on This Parcel (2 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 168344 | Solar / battery storage | Issued | Iss. Jun 2, 2021 | $16,500 | 6.46 Kw Rooftop Photovoltaic & Energy Storage System - Express |
| B19707 | HVAC / heat pump | Issued | Iss. Aug 29, 2019 | $16,000 | Install Payne 14 - 15 SEER, single stage air conditioning, and 220 v circuit. — New Circuits / Outlets; Replace Mechanic… |