258 Amherst Ave
Kensington 94708 · Unincorporated Contra Costa · Coordinates: 37.90468, -122.27784
Parcel & Assessor
- Lot size:
- 5,833 sq ft (0.13 ac)
- Assessor use:
- Duplex
- Tax rate area:
- 85064
- Addresses on lot:
- 258 AMHERST AVE
Zoning & Land Use
R-6 -TOV -K — Single Family Residential · Tree Obstruction of View Ordinance and Kensington Combining District (Unincorporated Contra Costa)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-6 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotPossible, with conditions
Zoned R-6, a single-family residential zone. Alquist-Priolo Earthquake Fault Zone covers all of the lot: the project must meet the seismic building standards, and a fault study is usually required.
- SB 9: split into two lotsPossible, with conditions
Zoned R-6, a single-family residential zone. The lot is 5,833 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. Alquist-Priolo Earthquake Fault Zone covers all of the lot: the project must meet the seismic building standards, and a fault study is usually required.
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 X: minimal flood hazard (all of the lot) · FIRM panel 06013C0244G, effective September 30, 2015
- CGS Alquist-Priolo Earthquake Fault Zone
- Alquist-Priolo Earthquake Fault Zone (Richmond quadrangle) (all of the lot)
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,687,000 – $2,283,000 · Status: Off market
HUD Small Area FMR (ZIP 94708) · FY 2026
Studio $2,740 · 1BR $3,050 · 2BR $3,720 · 3BR $4,760 · 4BR $5,640
Nearby Activity (½ mile radius, since —)
9 active or recent development projects (9 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- New home (Entitled)On this parcel
Active in "Entitled" for 17 mo (first record May 22, 2025) with no new permit activity recorded in 17 mo.
- New home (Issued)0.13 mi N
Active in "Issued" for 3.6 yr (first record Apr 12, 2023) with no new permit activity recorded in 3.6 yr.
- New home (Issued)0.15 mi S
Active in "Issued" for 4.8 yr (first record Jan 14, 2022) with no new permit activity recorded in 4.8 yr.
- New home (Issued)0.16 mi S
Active in "Issued" for 3.2 yr (first record Sep 5, 2023) with no new permit activity recorded in 3.2 yr.
Permit & Project History on This Parcel (0 permits, 1 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 1 entry (report years 2025).