4651 San Pablo Dam Rd
El Sobrante 94803 · Unincorporated Contra Costa · Coordinates: 37.96555, -122.29851
Parcel & Assessor
- Lot size:
- 15,682 sq ft (0.36 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 85002
- Addresses on lot:
- 4651 SAN PABLO DAM 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 lotPossible, with conditions
Zoned R-7, a single-family residential zone. FEMA Special Flood Hazard Area (Zone A) covers about 18% of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.
- SB 9: split into two lotsPossible, with conditions
Zoned R-7, a single-family residential zone. The lot is 15,682 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. FEMA Special Flood Hazard Area (Zone A) covers about 18% of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (Local Responsibility Area) (about 29% of the lot, map Mar 24, 2025); Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 71% of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone A: 1% annual chance flood (Special Flood Hazard Area) (about 18% of the lot); Zone X: minimal flood hazard (about 82% of the lot) · FIRM panel 06013C0233G, 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: $665,000 – $899,000 · 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)
6 active or recent development projects (6 housing units across completed, permitted, and pipeline stages) and 42 total building permits recorded within ½ mile.
- Adds housing (ADU)1 permit (1 units)
- Additions & renovations3 permits
- Building systems30 permits
- Repairs2 permits
- Other6 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 6.1 yr (first record Sep 24, 2020) with no new permit activity recorded in 6.1 yr.
- New home (Issued)200 ft W
Active in "Issued" for 19 mo (first record Mar 26, 2025) with no new permit activity recorded in 19 mo.
- New home (Entitled)0.14 mi SW
Active in "Entitled" for 2.1 yr (first record Oct 1, 2024) with no new permit activity recorded in 2.1 yr.
- New home (Entitled)0.15 mi NE
Active in "Entitled" for 6.3 yr (first record Jul 22, 2020) with no new permit activity recorded in 6.3 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 2020, 2024).