45 Oak Knoll Dr
San Anselmo 94960 · Sleepy Hollow · Unincorporated Marin · Coordinates: 37.99973, -122.57766
Parcel & Assessor
- Lot size:
- 19,515 sq ft (0.45 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 45 OAK KNOLL DR
Zoning & Land Use
A2-BD — Agriculture Limited (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned A2-BD (agricultural): ADUs are allowed if the zone allows a home, which depends on the zone's rules.
- SB 9: two homes on the lotUnlikely
Zoned A2-BD (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned A2-BD (agricultural), not a single-family residential zone.
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 06041C0452E, effective March 17, 2014
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
HUD Small Area FMR (ZIP 94960) · FY 2026
Studio $2,510 · 1BR $3,010 · 2BR $3,640 · 3BR $4,650 · 4BR $4,820
Developments Deserving Closer Investigation & Active Area Builders
- New home at 830 Butterfield Rd (Issued)0.3 mi NE
Active in "Issued" for 8.2 yr (first record Aug 9, 2018) with no new permit activity recorded in 7.5 yr. High-impact scale (1 housing unit, $1,097,000 declared valuation across 2 permits).
- New home at 116 Holstein Rd (Issued)0.38 mi SE
Active in "Issued" for 12.8 yr (first record Dec 24, 2013) with no new permit activity recorded in 12.4 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 1 permit).
- New home (Issued)0.14 mi W
Active in "Issued" for 14 mo (first record Sep 2, 2025) with no new permit activity recorded in 14 mo.
- 282 Butterfield Road, Unit A (Issued)0.26 mi S
Active in "Issued" for 8.7 yr (first record Feb 14, 2018) with no new permit activity recorded in 8.7 yr.
Permit & Project History on This Parcel (7 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 94396 | Accessory dwelling unit (new or conversion) | Applied | App. Jul 22, 2026 | $100,000 | New Detached A D U With Attached Storage Shed & Covered Patio |
| B44293 | Electrical / panel | Issued | Iss. Oct 9, 2025 | $5,212 | Electrical service upgrade 200A; install new subpanel — Service Upgrade |
| B43806 | Solar / battery storage | Issued | Iss. Sep 10, 2025 | $14,000 | Install 2 battery backups |
| B33839 | Solar / battery storage | Issued | Iss. May 11, 2023 | $29,400 | Photovoltaic - Residential Flush Roof Mount, Grid Tied |