1970 La Cadena
Diablo 94528 · Unincorporated Contra Costa · Coordinates: 37.83306, -121.95675
Parcel & Assessor
- Lot size:
- 80,586 sq ft (1.85 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 66024
- Addresses on lot:
- 1970 LA CADENA
Zoning & Land Use
R-20 -UE — Single Family Residential · Urban Farm Animal Exclusion Combining District (Unincorporated Contra Costa)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-20 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotPossible, with conditions
Zoned R-20, a single-family residential zone. FEMA Special Flood Hazard Area (Zone A) covers about 12% 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-20, a single-family residential zone. The lot is 80,586 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 A) covers about 12% 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 A: 1% annual chance flood (Special Flood Hazard Area) (about 12% of the lot); Zone X: minimal flood hazard (about 88% of the lot) · FIRM panel 06013C0455G, effective March 21, 2017
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $2,943,000 – $3,981,000 · Status: Off market
HUD Small Area FMR (ZIP 94528) · FY 2026
Studio $2,140 · 1BR $2,440 · 2BR $2,970 · 3BR $3,830 · 4BR $4,530
Nearby Activity (½ mile radius, since —)
22 active or recent development projects (22 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 (Issued)On this parcel
Active in "Issued" for 6.8 yr (first record Jan 24, 2020) with no new permit activity recorded in 6.8 yr.
- New home (Issued)220 ft N
Active in "Issued" for 3.6 yr (first record Apr 4, 2023) with no new permit activity recorded in 3.6 yr.
- New home (Entitled)220 ft N
Active in "Entitled" for 3.6 yr (first record Apr 4, 2023) with no new permit activity recorded in 3.6 yr.
- New home (Issued)350 ft NW
Active in "Issued" for 21 mo (first record Jan 28, 2025) with no new permit activity recorded in 21 mo.
Permit & Project History on This Parcel (0 permits, 2 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 3 entries (report years 2019, 2020).