11 Alta Hill Way
Walnut Creek 94595 · Unincorporated Contra Costa · Coordinates: 37.89082, -122.07076
Parcel & Assessor
- Lot size:
- 14,253 sq ft (0.33 ac)
- Assessor use:
- Single Family, 2 or more residences on 1 or more site
- Tax rate area:
- 98002
- Addresses on lot:
- 11 ALTA HILL WAY
Zoning & Land Use
R-10 — Single Family Residential (Unincorporated Contra Costa)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-10 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R-10, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R-10, a single-family residential zone. The lot is 14,253 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
- 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 06013C0289G, 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: $605,000 – $819,000 · Status: Off market
HUD Small Area FMR (ZIP 94595) · FY 2026
Studio $2,200 · 1BR $2,450 · 2BR $2,990 · 3BR $3,820 · 4BR $4,530
Nearby Activity (½ mile radius, since —)
8 active or recent development projects (81 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 7.4 yr (first record May 28, 2019) with no new permit activity recorded in 7.4 yr.
- New home (Issued)On this parcel
Active in "Issued" for 8 yr (first record Oct 24, 2018) with no new permit activity recorded in 8 yr.
- New home (Issued)0.17 mi E
Active in "Issued" for 5.5 yr (first record Apr 26, 2021) with no new permit activity recorded in 5.5 yr.
- New home (Entitled)0.17 mi E
Active in "Entitled" for 6 yr (first record Nov 17, 2020) with no new permit activity recorded in 6 yr.
Permit & Project History on This Parcel (0 permits, 3 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 2018, 2019, 2021).