3 A Berke Ct
Tiburon 94920 · Tiburon · Coordinates: 37.88371, -122.45813
Executive Verdict · Public-Records Synthesis
Zoned RO-2 in Tiburon with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (local responsibility area) due diligence; benchmark value $3,712,000 ($3,155,000–$4,269,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned RO-2 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 18,513 sq ft lot.
Source: Tiburon zoning · CA Gov. Code 66314 & 65852.21
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 (Local 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 Mar 24, 2025)
- ! Delayed or open permit activity on this parcel
New home: Active in "Issued" for 6.9 yr (first record Dec 11, 2019) with no new permit activity recorded in 6.9 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 4 slow or stalled nearby projects within ½ mile
Closest lead: New home at 4121 Paradise A K A 60 Eden (100 ft N, issued). 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:
- 18,513 sq ft (0.42 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 3A BERKE CT; 3 BERKE CT
Zoning & Land Use
RO-2 — Residential Open (20,000 square feet) (Tiburon)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RO-2 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RO-2, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RO-2, a single-family residential zone. The lot is 18,513 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 (Local Responsibility Area) (all of the lot, map Mar 24, 2025)
- 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: $3,155,000 – $4,269,000 · 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
Nearby Activity (½ mile radius, since —)
7 active or recent development projects (7 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 6.9 yr (first record Dec 11, 2019) with no new permit activity recorded in 6.9 yr.
- New home (Entitled)On this parcel
Active in "Entitled" for 8 yr (first record Nov 7, 2018) with no new permit activity recorded in 8 yr.
- New home at 4121 Paradise A K A 60 Eden (Issued)100 ft N
Active in "Issued" for 11.8 yr (first record Jan 14, 2015) with no new permit activity recorded in 11.1 yr.
- Accessory dwelling unit at 4982 Ranch Rd (legal Add: 4984) (Issued)100 ft N
Active in "Issued" for 13.4 yr (first record Jun 27, 2013) with no new permit activity recorded in 12.7 yr.
Permit & Project History on This Parcel (0 permits, 3 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 3 entries (report years 2018, 2019, 2022).