18 Marsh Dr

Parcel & Assessor

Lot size:

14,898 sq ft (0.34 ac)

Assessor use:

Single-Resid. - Improved

Addresses on lot:

18 MARSH DR; 18 MARSH DR UNIT A

State Housing Pathways Screen (ADU & SB 9)

• ADU or junior ADUPossible, with conditions

  Zoned RS-43 (single-family residential): state law allows ADUs where homes are allowed. Very High Fire Hazard Severity Zone covers all of the lot: cities may limit ADUs here for fire safety and evacuation.

• SB 9: two homes on the lotPossible, with conditions

  Zoned RS-43, a single-family residential zone. Very High Fire Hazard Severity Zone (local responsibility area) covers all of the lot: SB 9 requires the project to meet the fire hazard mitigation standards.

• SB 9: split into two lotsPossible, with conditions

  Zoned RS-43, a single-family residential zone. The lot is 14,898 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. Very High Fire Hazard Severity Zone (local responsibility area) covers all of the lot: SB 9 requires the project to meet the fire hazard mitigation standards.

Mapped Hazard Zones on This Lot

CAL FIRE Fire Hazard Severity Zone

Very High 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 06041C0466F, effective March 16, 2016

CGS Alquist-Priolo Earthquake Fault Zone

Not in an Alquist-Priolo Earthquake Fault Zone

Surrounding Rent & Value Benchmarks (Public Records)

Nearby Activity (½ mile radius, since —)

6 active or recent development projects (6 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.