4306 Santa Rita Rd
El Sobrante 94803 · Unincorporated Contra Costa · Coordinates: 37.97056, -122.30017
Parcel & Assessor
- Lot size:
- 18,017 sq ft (0.41 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 85002
- Addresses on lot:
- 4306 SANTA RITA RD
Zoning & Land Use
R-7 — Single Family Residential (Unincorporated Contra Costa)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-7 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R-7, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R-7, a single-family residential zone. The lot is 18,017 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 06013C0231G, 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: $672,000 – $908,000 · Status: Off market
HUD Small Area FMR (ZIP 94803) · FY 2026
Studio $2,020 · 1BR $2,240 · 2BR $2,740 · 3BR $3,500 · 4BR $4,150
Nearby Activity (½ mile radius, since November 2024)
11 active or recent development projects (11 housing units across completed, permitted, and pipeline stages) and 56 total building permits recorded within ½ mile.
- Adds housing (ADU)5 permits (5 units)
- Additions & renovations5 permits
- Building systems38 permits
- Repairs1 permit
- Other7 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 3.7 yr (first record Mar 8, 2023) with no new permit activity recorded in 3.7 yr.
- New home (Issued)On this parcel
Active in "Issued" for 7.1 yr (first record Sep 17, 2019) with no new permit activity recorded in 7.1 yr.
- Garage Conversion - ADU (Entitled)460 ft E
Active in "Entitled" for 15 mo (first record Aug 21, 2025) with no new permit activity recorded in 15 mo.
- New home (Entitled)0.1 mi W
Active in "Entitled" for 5.5 yr (first record May 18, 2021) with no new permit activity recorded in 5.5 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 2019, 2023, 2024).