25 Corte Sereno
Greenbrae 94904 · Kentfield · Unincorporated Marin · Coordinates: 37.95477, -122.53248
Parcel & Assessor
- Lot size:
- 9,104 sq ft (0.21 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 25 CORTE SERENO
Zoning & Land Use
R1-B2 — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1-B2 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R1-B2, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1-B2, a single-family residential zone. The lot is 9,104 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 06041C0458F, 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: $2,189,000 – $2,787,000 · Status: Off market
HUD Small Area FMR (ZIP 94904) · FY 2026
Studio $2,260 · 1BR $2,710 · 2BR $3,280 · 3BR $4,190 · 4BR $4,340
Developments Deserving Closer Investigation & Active Area Builders
- Demolition at 25 Corte Sereno (Applied)On this parcel
Active in "Applied" for 4.8 yr (first record Jan 14, 2022) with no new permit activity recorded in 4.8 yr.
- Accessory dwelling unit at 34 Wolfe Grade (Applied)0.19 mi W
Active in "Applied" for 2.8 yr (first record Jan 17, 2024) with no new permit activity recorded in 2.8 yr. High-impact scale (1 housing unit, $750,000 declared valuation across 1 permit).
- New commercial building at 675 Sir Francis Drake Blvd (Issued)0.37 mi SW
Active in "Issued" for 12.7 yr (first record Mar 6, 2014) with no new permit activity recorded in 12.4 yr. High-impact scale ($2,400,000 declared valuation across 2 permits).
- New home at 29 Mann Dr (Issued)0.38 mi NW
Active in "Issued" for 12.7 yr (first record Mar 6, 2014) with no new permit activity recorded in 12.4 yr. High-impact scale (1 housing unit, $1,030,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (3 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B42371 | Solar / battery storage | Issued | Iss. May 12, 2025 | $29,950 | Install (23) roof mount solar panels at 9.43 kW and 2 batteries, ev charger |
| 170955 | Addition (adds square footage) | Issued | Iss. Mar 23, 2022 | $300,000 | Addition; Whole House Remodel, Including Reroof And M P U To 200 A |
| 89405 | Demolition | Applied | App. Jan 14, 2022 | $1,500 | Interior Demo |