17 Teaberry Ln
Tiburon 94920 · Unincorporated Tiburon · Unincorporated Marin · Coordinates: 37.89064, -122.45146
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 $3,446,000 ($3,032,000–$3,860,000).
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 26,659 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$121,980 contributory est.)
Public building records show issued construction/renovation work on this parcel (5 total permits, latest Sep 14, 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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: Accessory dwelling unit at 21 Teaberry Ln (330 ft 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)
- ! Year 1 Prop 13 tax reset (~$40,079/yr at $3,446,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$3,340/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:
- 26,659 sq ft (0.61 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 17 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 26,659 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: $3,032,000 – $3,860,000 · 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)330 ft NW
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 (Entitled)0.49 mi SW
In "Entitled" for 7.2 yr (since Sep 5, 2019), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Issued)290 ft N
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)0.36 mi SW
Active in "Issued" for 2 yr (first record Nov 21, 2024) with no new permit activity recorded in 2 yr.
Entity-resolved builders & contractors in ½ mile: Citadel Roofing And Solar (1 on parcel, 1 in ½ mi · Solar / battery storage); Modern Method Roofing (1 on parcel, 1 in ½ mi · General repair); Ernest Ongaro And Sons (1 on parcel, 1 in ½ mi · HVAC / heat pump); Robert Curry Electric (1 on parcel, 1 in ½ mi · Electrical / panel); Schalich Brothers Construction (3 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (5 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B31052 | HVAC / heat pump | Issued | Iss. Sep 14, 2022 | $7,500 | replace failed AC with new heat pump in back yard — Replace Mechanical Appliance |
| 166408 | Solar / battery storage | Issued | Iss. Dec 1, 2020 | $45,000 | Photovoltaic 8.03kw *Changed To Remove Ess* |
| 166146 | Addition (adds square footage) | Issued | Iss. Nov 3, 2020 | $190,000 | Addn; Rmdl; Deck & Stair; Ext Radiant Heat; Reloc Sub Panel; Repl W/H; Upgr Main Panel T.D. 8-31-20 |
| B23838 | Electrical / panel | Issued | Iss. Oct 14, 2020 | $3,200 | Main Panel Upgrade — Service Upgrade |
| 142503 | General repair | Issued | Iss. May 6, 2014 |