42 Carmello Rd
Walnut Creek 94597 · Unincorporated Contra Costa · Coordinates: 37.90665, -122.07320
Parcel & Assessor
- Lot size:
- 24,012 sq ft (0.55 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 98002
- Addresses on lot:
- 42 CARMELLO RD
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 24,012 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 06013C0287F, 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: $918,000 – $1,242,000 · Status: Off market
HUD Small Area FMR (ZIP 94597) · FY 2026
Studio $2,390 · 1BR $2,660 · 2BR $3,250 · 3BR $4,160 · 4BR $4,930
Nearby Activity (½ mile radius, since —)
8 active or recent development projects (8 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 8 yr (first record Nov 7, 2018) with no new permit activity recorded in 8 yr.
- WCTV Phase II (Issued)0.25 mi SE
Active in "Issued" for 7.7 yr (first record Mar 5, 2019) with no new permit activity recorded in 7.7 yr. High-impact scale (358 housing units across 0 permits).
- New home (Issued)0.18 mi N
Active in "Issued" for 23 mo (first record Nov 27, 2024) with no new permit activity recorded in 23 mo.
- New home (Issued)0.22 mi W
Active in "Issued" for 3.8 yr (first record Jan 12, 2023) with no new permit activity recorded in 3.8 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: 3 entries (report years 2018, 2019, 2020).