3636 Paradise Dr
Tiburon 94920 · Unincorporated Tiburon · Unincorporated Marin · Coordinates: 37.89509, -122.46173
Executive Verdict · Public-Records Synthesis
Zoned RSP-1-BFC 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 $3,423,000 ($3,012,000–$3,834,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned RSP-1-BFC supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 27,269 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$99,582 contributory est.)
Public building records show issued construction/renovation work on this parcel (12 total permits, latest Jul 11, 2024).
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
Plumbing / water heater / sewer (168097): Issued after 5 mo — slower than 90% of plumbing / water heater / sewer permits in Unincorporated Marin (median 0d, 90th pct 0d, n=2,211).
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 3820 Paradise Dr (0.46 mi NW, 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:
- 27,269 sq ft (0.63 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 3636 PARADISE DR
Zoning & Land Use
RSP-1-BFC — Residential Single Family Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RSP-1-BFC (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RSP-1-BFC, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RSP-1-BFC, a single-family residential zone. The lot is 27,269 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 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: $3,012,000 – $3,834,000 · 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 3820 Paradise Dr (Applied)0.46 mi NW
In "Applied" for 5.4 yr (since Jun 23, 2021), 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, $3,800,000 declared valuation across 1 permit).
- Plumbing / water heater / sewer (168097) (Issued)On this parcel
Issued after 5 mo — slower than 90% of plumbing / water heater / sewer permits in Unincorporated Marin (median 0d, 90th pct 0d, n=2,211).
- Accessory dwelling unit at 3820 Paradise Dr Lot (Issued)0.4 mi NW
Active in "Issued" for 2.3 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).
- New home at 3880 Paradise Dr (Issued)0.42 mi NW
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).
Entity-resolved builders & contractors in ½ mile: R Schmidt Construction (4 on parcel, 4 in ½ mi · Plumbing / water heater / sewer); Herbs Pool Service (1 on parcel, 2 in ½ mi · General repair); De Mello Roofing (2 on parcel, 2 in ½ mi · Roof replacement); Moore Services (2 on parcel, 2 in ½ mi · HVAC / heat pump); Moore Home Services (1 on parcel, 1 in ½ mi · HVAC / heat pump).
Permit & Project History on This Parcel (12 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B38706 | Roof replacement | Issued | Iss. Jul 11, 2024 | $20,000 | Reroof, adjacent to living room and replace five windows and one door, with same size and style. — ReRoofing, Non-struct… |
| B37325 | Plumbing / water heater / sewer | Issued | Iss. Mar 13, 2024 | $30,000 | Repair work, replace existing door above garage with same size and type of door. Remodel bathroom behind garage, same la… |
| B31593 | Solar / battery storage | Issued | Iss. Oct 29, 2022 | $19,000 | Solar system inverter update and ESS install |
| B31204 | HVAC / heat pump | Issued | Iss. Sep 27, 2022 | $35,707 | 2 AC CHANGEOUTS AND FURNACE REPLACEMENT — Replace Mechanical Appliance |
| B29332 | Roof replacement |