3870 Paradise Dr
Tiburon 94920 · Unincorporated Tiburon · Unincorporated Marin · Coordinates: 37.89972, -122.46986
Parcel & Assessor
- Lot size:
- 105,241 sq ft (2.42 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 3870 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.
- 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 105,241 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: $2,679,000 – $3,409,000 · 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
- New home at 3870 Paradise Dr (Issued)On this parcel
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 3860 Paradise Dr Aka (Issued)410 ft S
Active in "Issued" for 2.8 yr (first record Jan 23, 2024) with no new permit activity recorded in 12 mo. High-impact scale (1 housing unit, $1,400,000 declared valuation across 1 permit).
- New home at 3880 Paradise Dr (Issued)0.14 mi E
Active in "Issued" for 12.7 yr (first record Feb 13, 2014) with no new permit activity recorded in 11.4 yr. High-impact scale (1 housing unit, $2,240,000 declared valuation across 2 permits).
- New home at 3820 Paradise Dr (Applied)0.14 mi S
Active in "Applied" for 5.3 yr (first record Jun 23, 2021) with no new permit activity recorded in 5.3 yr. High-impact scale (1 housing unit, $3,800,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (6 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B44004 | Solar / battery storage | Issued | Iss. Sep 23, 2025 | $50,000 | 24.36 kW (DC) ROOF-MOUNTED SOLAR PV ARRAY AND 40kWH BATTERY BACK-UP. |
| 179658 | Pool / spa | Issued | Iss. Jul 17, 2025 | $175,000 | New Inground Swimming Pool W/ Automatic Safety Cover |
| 176119 | General repair | Issued | Iss. Mar 5, 2024 | $60,000 | Driveway Retaining Wall |
| 176118 | General repair | Issued | Iss. Mar 5, 2024 | $70,000 | Future Pool Retaining Walls; Retaining Wall At Patio |