3860 A Paradise Dr
Tiburon 94920 · Unincorporated Tiburon · Unincorporated Marin · Coordinates: 37.89858, -122.46942
Parcel & Assessor
- Lot size:
- 151,240 sq ft (3.47 ac)
- Assessor use:
- Single-Resid. - Unimproved
- Addresses on lot:
- 3860A PARADISE DR; 3860 PARADISE DR
Zoning & Land Use
RSP-0.5-BFC — Residential Single Family Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RSP-0.5-BFC (single-family residential): state law allows ADUs where homes are allowed. The assessor lists the lot as vacant: an ADU needs an existing or proposed main home.
- SB 9: two homes on the lotLikely eligible
Zoned RSP-0.5-BFC, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RSP-0.5-BFC, a single-family residential zone. The lot is 151,240 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 06041C0488E, 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: $2,845,000 – $3,621,000 · 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
- Accessory dwelling unit at 3860 Paradise Dr Aka (Issued)On this parcel
Active in "Issued" for 2.8 yr (first record Jan 23, 2024) with no new permit activity recorded in 13 mo. High-impact scale (1 housing unit, $1,400,000 declared valuation across 1 permit).
- New home at 3820 Paradise Dr (Applied)300 ft S
Active in "Applied" for 5.4 yr (first record Jun 23, 2021) with no new permit activity recorded in 5.4 yr. High-impact scale (1 housing unit, $3,800,000 declared valuation across 1 permit).
- New home at 3870 Paradise Dr (Issued)410 ft NW
Active in "Issued" for 3.6 yr (first record Mar 22, 2023) with no new permit activity recorded in 2.7 yr. High-impact scale (1 housing unit, $2,100,000 declared valuation across 1 permit).
- Accessory dwelling unit at 3820 Paradise Dr Lot (Issued)0.1 mi SE
Active in "Issued" for 2.2 yr (first record Aug 8, 2024) with no new permit activity recorded in 16 mo. High-impact scale (1 housing unit, $1,900,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (11 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 180276 | Plumbing / water heater / sewer | Issued | Iss. Oct 14, 2025 | $97,000 | Reflecting Pool; Soaking Tub; Outdoor Kitchen; 2 Firepits; Automatic Vehicle Gate |
| 180275 | General repair | Issued | Iss. Oct 14, 2025 | $70,000 | Driveway Retaining Walls; East Retaining Wall; West Retaining Wall |
| 180274 | Accessory dwelling unit (new or conversion) | Issued | Iss. Oct 14, 2025 | $1,400,000 | New S F D; Attached A D U; Decks |
| 92237 | General repair | Applied | App. May 22, 2024 | $15,000 |