3427 San Pablo Dam Rd
El Sobrante 94803 · Unincorporated Contra Costa · Coordinates: 37.96361, -122.32370
Parcel & Assessor
- Lot size:
- 21,780 sq ft (0.50 ac)
- Assessor use:
- Single Family on other than single family land
- Tax rate area:
- 85083
- Addresses on lot:
- 3427 SAN PABLO DAM RD
Zoning & Land Use
R-B — Retail Business (Unincorporated Contra Costa)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUUnlikely
Zoned R-B (commercial): the zone doesn't allow homes, so state ADU rules don't apply.
- SB 9: two homes on the lotUnlikely
Zoned R-B (commercial), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned R-B (commercial), not a single-family residential zone.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 4% of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06013C0229H, 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: $681,000 – $921,000 · 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 October 2024)
5 active or recent development projects (5 housing units across completed, permitted, and pipeline stages) and 31 total building permits recorded within ½ mile.
- Additions & renovations5 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 4.4 yr (first record Jun 9, 2022) with no new permit activity recorded in 4.4 yr.
- New home (Entitled)150 ft SE
Active in "Entitled" for 16 mo (first record Jun 16, 2025) with no new permit activity recorded in 16 mo.
- New home (Entitled)500 ft E
Active in "Entitled" for 3.1 yr (first record Sep 27, 2023) with no new permit activity recorded in 3.1 yr.
- New home (Entitled)500 ft E
Active in "Entitled" for 3.1 yr (first record Sep 27, 2023) with no new permit activity recorded in 3.1 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 2022, 2023, 2024).