3843 Blair Island Ave

Parcel & Assessor

Lot size:

4,122 sq ft (0.09 ac)

Assessor use:

Vacant · Site (Under 2ac)

Tax rate area:

03350

Addresses on lot:

3843 BLAIR ISLAND AVE

State Housing Pathways Screen (ADU & SB 9)

• ADU or junior ADULikely eligible

  Zoned R-1A (two-family residential): state law allows ADUs where homes are allowed. The assessor lists the lot as vacant: an ADU needs an existing or proposed main home.

• SB 9: two homes on the lotCan't tell

  Zoned R-1A (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. Single-Unit or Duplex Dwelling Zone.

• SB 9: split into two lotsCan't tell

  Zoned R-1A (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. Single-Unit or Duplex Dwelling Zone.

Mapped Hazard Zones on This Lot

CAL FIRE Fire Hazard Severity Zone

Not in a State-mapped fire hazard severity zone

FEMA National Flood Hazard Layer

Zone A99: 1% annual chance flood (Special Flood Hazard Area) (all of the lot) · FIRM panel 06067C0045J, effective June 16, 2015

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)

631 active or recent development projects (629 housing units across completed, permitted, and pipeline stages) and 763 total building permits recorded within ½ mile.

• New construction530 permits (530 units)
• Adds housing (ADU)5 permits (5 units)
• Additions & renovations43 permits