11 Diablo Vista Way
Lafayette 94549 · Unincorporated Contra Costa · Coordinates: 37.91933, -122.09920
Parcel & Assessor
- Lot size:
- 41,382 sq ft (0.95 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 79091
- Addresses on lot:
- 1
Zoning & Land Use
R-20 — Single Family Residential (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 lotLikely eligible
Zoned R-20, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R-20, a single-family residential zone. The lot is 41,382 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 06013C0286F, effective June 16, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,810,000 – $2,448,000 · Status: Off market
HUD Small Area FMR (ZIP 94549) · FY 2026
Studio $2,880 · 1BR $3,210 · 2BR $3,920 · 3BR $5,010 · 4BR $5,940
Nearby Activity (½ mile radius, since —)
1 active or recent development project (1 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 16 mo (first record Jun 26, 2025) with no new permit activity recorded in 16 mo.
- New home (Entitled)On this parcel
Active in "Entitled" for 22 mo (first record Jan 8, 2025) with no new permit activity recorded in 22 mo.
- 10 new homes (Entitled)450 ft S
Active in "Entitled" for 8.5 yr (first record May 7, 2018) with no new permit activity recorded in 8.5 yr. High-impact scale (10 housing units across 0 permits).
- Lille ADU (Entitled)0.14 mi W
Active in "Entitled" for 6.6 yr (first record Mar 19, 2020) with no new permit activity recorded in 6.6 yr.
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: 2 entries (report years 2025).