3180 Walnut Blvd
Walnut Creek 94596 · Unincorporated Contra Costa · Coordinates: 37.89531, -122.04229
Parcel & Assessor
- Lot size:
- 125,453 sq ft (2.88 ac)
- Assessor use:
- Single Family, 1 residence on 2 or more sites
- Tax rate area:
- 98004
- Addresses on lot:
- 3180 WALNUT BLVD
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 125,453 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 06013C0293G, 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: $904,000 – $1,224,000 · Status: Off market
HUD Small Area FMR (ZIP 94596) · FY 2026
Studio $2,460 · 1BR $2,740 · 2BR $3,350 · 3BR $4,280 · 4BR $5,080
Nearby Activity (½ mile radius, since —)
4 active or recent development projects (4 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- 10 new homes (Entitled)On this parcel
Active in "Entitled" for 2.7 yr (first record Feb 27, 2024) with no new permit activity recorded in 2.7 yr. High-impact scale (10 housing units, 1 deed-restricted affordable across 0 permits).
- New home (Issued)0.12 mi N
Active in "Issued" for 15 mo (first record Aug 5, 2025) with no new permit activity recorded in 15 mo.
- New home (Entitled)0.19 mi NW
Active in "Entitled" for 17 mo (first record Jun 16, 2025) with no new permit activity recorded in 17 mo.
- New home (Entitled)0.26 mi W
Active in "Entitled" for 7 yr (first record Nov 15, 2019) with no new permit activity recorded in 7 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 2024).