2390 Paradise Dr
Tiburon 94920 · Unincorporated Tiburon · Unincorporated Marin · Coordinates: 37.87705, -122.44491
Executive Verdict · Public-Records Synthesis
Zoned R2 in Unincorporated Marin with likely ministerial ADU eligibility and mapped CAL FIRE moderate fire hazard severity zone (local responsibility area) due diligence; benchmark value $3,180,000 ($2,798,000–$3,562,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone R2 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
- ✓ Documented permitted upgrades (+$19,751 contributory est.)
Public building records show issued construction/renovation work on this parcel (8 total permits, latest May 26, 2026).
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 (Local Responsibility Area) (about 63% 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 Mar 24, 2025)
- ! Delayed or open permit activity on this parcel
Remodel / interior alteration (94249): Pending in review for 6 mo (2.0× the 83d median) — above the 75th percentile for remodel / interior alteration permits in Unincorporated Marin (median 83d, 75th pct 148d, n=1,054).
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 (0.42 mi W, 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)
Parcel & Assessor
- Lot size:
- 12,589 sq ft (0.29 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 2390 PARADISE DR
Zoning & Land Use
R2 — Residential Two Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R2 (two-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotCan't tell
Zoned R2 (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential Two Family.
- SB 9: split into two lotsCan't tell
Zoned R2 (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential Two Family.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 63% of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0489E, 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: $2,798,000 – $3,562,000 · Status: Off market
HUD Small Area FMR (ZIP 94920) · FY 2026
Studio $2,820 · 1BR $3,380 · 2BR $4,100 · 3BR $5,230 · 4BR $5,420
Developments Deserving Closer Investigation & Active Area Builders
- Remodel / interior alteration (94249) (Applied)On this parcel
Pending in review for 6 mo (2.0× the 83d median) — above the 75th percentile for remodel / interior alteration permits in Unincorporated Marin (median 83d, 75th pct 148d, n=1,054).
- New home (Entitled)0.42 mi W
In "Entitled" for 2.2 yr (since Aug 13, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Entitled)0.42 mi W
In "Entitled" for 2.2 yr (since Aug 13, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Issued)280 ft W
Active in "Issued" for 2 yr (first record Oct 28, 2024) with no new permit activity recorded in 2 yr.
Entity-resolved builders & contractors in ½ mile: Gagne Brothers Enterprises (2 on parcel, 2 in ½ mi · Plumbing / water heater / sewer); Sunrun Installation Services (1 on parcel, 1 in ½ mi · Solar / battery storage); Bigham Services (1 on parcel, 1 in ½ mi · HVAC / heat pump); J And J Electric (1 on parcel, 1 in ½ mi · Other); Copp Roofing And Construction (1 on parcel, 1 in ½ mi · Solar / battery storage).
Permit & Project History on This Parcel (8 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 94249 | Remodel / interior alteration | Applied | App. May 26, 2026 | $810,000 | Interior Remodel, Incl. Replacing Exterior Stucco, Windows, Doors, 2nd Floor Deck And Guardrails, And Remodel Entry Stai… |
| B34019 | Plumbing / water heater / sewer | Issued | Iss. May 23, 2023 | $14,900 | REPLACING GAS LINE FOR POOL — Replace Plumbing Fixtures(s) |
| B30245 | Plumbing / water heater / sewer | Issued | Iss. Jun 30, 2022 | $4,600 | 50 GALLON ELECTRIC WATER HEATER REPLACEMENT AND REPLACE KITCHEN DRAIN LINES — Replace Plumbing Fixtures(s) |
| B29572 | Solar / battery storage | Issued | Iss. May 3, 2022 | $19,000 | Picture frame (comp inlay) x4 solar planes only (A,B,C,D on Drone Deploy) Comp inlay = 22 squares + Tile picture frame a… |
| B29319 |