4 Allen Ave

Parcel & Assessor

Lot size:

17,729 sq ft (0.41 ac)

Assessor use:

Single-Resid. - Improved

Addresses on lot:

4 ALLEN AVE

State Housing Pathways Screen (ADU & SB 9)

• ADU or junior ADULikely eligible

  Zoned R-1_B-7_5 (single-family residential): state law allows ADUs where homes are allowed.

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

  Zoned R-1_B-7_5, a single-family residential zone. FEMA Special Flood Hazard Area (Zone AE) covers all of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.

• SB 9: split into two lotsPossible, with conditions

  Zoned R-1_B-7_5, a single-family residential zone. The lot is 17,729 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. FEMA Special Flood Hazard Area (Zone AE) covers all of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.

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 AE: 1% annual chance flood (Special Flood Hazard Area) (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)

Nearby Activity (½ mile radius, since October 2024)

16 active or recent development projects (15 housing units across completed, permitted, and pipeline stages) and 121 total building permits recorded within ½ mile.