311 Summit Dr

Parcel & Assessor

Lot size:

17,642 sq ft (0.41 ac)

Assessor use:

Single-Resid. - Improved

Addresses on lot:

311 SUMMIT DR

State Housing Pathways Screen (ADU & SB 9)

• ADU or junior ADULikely eligible

  Zoned R-1-A (single-family residential): state law allows ADUs where homes are allowed. We read R-1-A from the zoning code's name; we haven't checked it against Corte Madera's code text.

• SB 9: two homes on the lotLikely eligible

  Zoned R-1-A, a single-family residential zone. We read R-1-A from the zoning code's name; we haven't checked it against Corte Madera's code text.

• SB 9: split into two lotsLikely eligible

  Zoned R-1-A, a single-family residential zone. We read R-1-A from the zoning code's name; we haven't checked it against Corte Madera's code text. The lot is 17,642 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 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 —)

4 active or recent development projects (5 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.