8 Teaberry Ln
Tiburon 94920 · Unincorporated Tiburon · Unincorporated Marin · Coordinates: 37.89218, -122.45127
Executive Verdict · Public-Records Synthesis
Zoned R1-B4 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 $3,333,000 ($2,933,000–$3,733,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned R1-B4 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 22,608 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$33,040 contributory est.)
Public building records show issued construction/renovation work on this parcel (4 total permits, latest May 23, 2022).
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)
- ! 4 slow or stalled nearby projects within ½ mile
Closest lead: Accessory dwelling unit at 21 Teaberry Ln (0.1 mi SW, 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)
- ! Year 1 Prop 13 tax reset (~$38,780/yr at $3,333,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$3,232/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Parcel & Assessor
- Lot size:
- 22,608 sq ft (0.52 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 8 TEABERRY LN
Zoning & Land Use
R1-B4 — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1-B4 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R1-B4, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1-B4, a single-family residential zone. The lot is 22,608 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: $2,933,000 – $3,733,000 · 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 21 Teaberry Ln (Applied)0.1 mi SW
In "Applied" for 4.5 yr (since May 5, 2022), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Issued)280 ft S
Active in "Issued" for 6.7 yr (first record Feb 20, 2020) with no new permit activity recorded in 6.7 yr.
- New home (Issued)0.43 mi SW
Active in "Issued" for 2 yr (first record Nov 21, 2024) with no new permit activity recorded in 2 yr.
- New home (Issued)0.46 mi SW
Active in "Issued" for 3.6 yr (first record Apr 24, 2023) with no new permit activity recorded in 3.6 yr.
Entity-resolved builders & contractors in ½ mile: Lamperti Contracting And Design (1 on parcel, 1 in ½ mi · Remodel / interior alteration); Marin County Roofing (1 on parcel, 1 in ½ mi · Roof replacement); Haddon Heating And Cooling (1 on parcel, 1 in ½ mi · HVAC / heat pump); Pac Solar (1 on parcel, 1 in ½ mi · Solar / battery storage); Schalich Brothers Construction (3 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (4 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B29815 | Roof replacement | Issued | Iss. May 23, 2022 | $25,000 | T/O existing comp roof and replace with same. No new sheathing required — ReRoofing; With Electronic Inspection |
| 169396 | Remodel / interior alteration | Issued | Iss. Sep 21, 2021 | $62,000 | Bath Remodel |
| B26063 | HVAC / heat pump | Issued | Iss. Jun 16, 2021 | $14,982 | Replace existing furnace and AC with new like same. FURNACE EL396UH110XE60C 110K BTU, 96% AFUE AC MODEL - EL16XC1-048-23… |
| 161740 | Solar / battery storage | Issued | Iss. Jun 6, 2019 | $13,000 | Pv5.680 Express E-Inspection |