25 Kailua Way
Dillon Beach 94929 · Dillon Beach · Unincorporated Marin · Coordinates: 38.25461, -122.96890
Executive Verdict · Public-Records Synthesis
Zoned C-R1 in Unincorporated Marin with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,474,000 ($1,297,000–$1,651,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned C-R1 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 9,714 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ 4 documented municipal building permits on file
On-parcel permit history is indexed through Mar 13, 2024, 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
- ! 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)
- ! CAL FIRE Moderate Fire Hazard Severity Zone (State Responsibility Area) (all of the lot of lot)
Located in a mapped Fire Hazard Severity Zone. Expect Chapter 7A ignition-resistant building standards, defensible-space inspections, and stricter property insurance underwriting.
Source: CAL FIRE FHSZ (map Apr 1, 2024)
- ! Delayed or open permit activity on this parcel
Other (156041): Issued after 2 mo — above the 75th percentile for other permits in Unincorporated Marin (median 0d, 75th pct 1d, n=1,560).
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 34 Kona Ln (0.32 mi NE, 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)
Parcel & Assessor
- Lot size:
- 9,714 sq ft (0.22 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 25 KAILUA WAY
Zoning & Land Use
C-R1 — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned C-R1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned C-R1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned C-R1, a single-family residential zone. The lot is 9,714 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
- Moderate 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 06041C0040E, 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: $1,297,000 – $1,651,000 · Status: Off market
HUD Small Area FMR (ZIP 94929) · FY 2026
Studio $2,050 · 1BR $2,510 · 2BR $2,990 · 3BR $4,010 · 4BR $4,280
Developments Deserving Closer Investigation & Active Area Builders
- New home at 34 Kona Ln (Applied)0.32 mi NE
In "Applied" for 3.9 yr (since Dec 27, 2022), 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).
- New home at 314 Oceana Dr (Issued)0.17 mi E
Active in "Issued" for 3.4 yr (first record Jun 6, 2023) with no new permit activity recorded in 2.1 yr. High-impact scale (1 housing unit, $1,783,932 declared valuation across 1 permit).
- New home at 429 Oceana Dr (Issued)0.31 mi E
Active in "Issued" for 4 yr (first record Nov 29, 2022) with no new permit activity recorded in 2.3 yr. High-impact scale (1 housing unit, $1,000,000 declared valuation across 1 permit).
- New home at 40 Sea Bluff (Issued)0.41 mi S
Active in "Issued" for 3.4 yr (first record Jun 2, 2023) with no new permit activity recorded in 3.1 yr. High-impact scale (1 housing unit, $1,600,000 declared valuation across 1 permit).
Entity-resolved builders & contractors in ½ mile: Owner (1 on parcel, 12 in ½ mi · New garage / accessory structure); Js Construction (1 on parcel, 2 in ½ mi · New garage / accessory structure); Ernest Ongaro And Sons (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer); John Evans Enterprises (1 on parcel, 1 in ½ mi · Electrical / panel); Owner Builder (21 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (4 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B37316 | Plumbing / water heater / sewer | Issued | Iss. Mar 13, 2024 | $3,000 | Replace failed tanked water heater with a New Tankless water heater. Connect to existing gas line. — Replace Plumbing Fi… |
| B25861 | Electrical / panel | Issued | Iss. May 26, 2021 | $1,800 | Replace existing Zinsco meter/main and distribution with new Cutler Hammer. Install new ground system with water/gas bon… |
| 167384 | New garage / accessory structure | Issued | Iss. Mar 10, 2021 | $150,000 | Substan. Remdl., Addtn, Rpl Fireplc, Reloc. Propane Tank, Hot Tub And Bbq Area. T.D. 11-30-20 |
| 156041 | Other | Issued | Iss. Jul 20, 2017 | $110,000 | Repl Deck & Walkway (Elevated) T.D. 6/15/17 |