4402 Appian Way
El Sobrante 94803 · Unincorporated Contra Costa · Coordinates: 37.96967, -122.30697
Parcel & Assessor
- Lot size:
- 18,992 sq ft (0.44 ac)
- Assessor use:
- Single Family on other than single family land
- Tax rate area:
- 85004
- Addresses on lot:
- 4402 APPIAN WAY
Zoning & Land Use
P-1 — Area Wide Planned Unit (Unincorporated Contra Costa)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned P-1 (planned development): ADUs are allowed if the zone allows a home, which depends on the approved plan.
- SB 9: two homes on the lotCan't tell
Zoned P-1 (planned development): we can't tell whether it counts as a single-family zone for SB 9. Area Wide Planned Unit: depends on the approved plan.
- SB 9: split into two lotsCan't tell
Zoned P-1 (planned development): we can't tell whether it counts as a single-family zone for SB 9. Area Wide Planned Unit: depends on the approved plan.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 49% of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone AE: 1% annual chance flood (Special Flood Hazard Area) (about 33% of the lot); Zone X: 0.2% annual chance flood hazard (shaded X) (about 8% of the lot); Zone X: minimal flood hazard (about 58% 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: $674,000 – $912,000 · 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)
9 active or recent development projects (9 housing units across completed, permitted, and pipeline stages) and 8 total building permits recorded within ½ mile.
- Additions & renovations2 permits
- Building systems3 permits
- Other3 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 3.5 yr (first record May 18, 2023) with no new permit activity recorded in 3.5 yr.
- New home (Issued)On this parcel
Active in "Issued" for 3.5 yr (first record May 18, 2023) with no new permit activity recorded in 3.5 yr.
- Balmore Court (Entitled)0.27 mi SW
Active in "Entitled" for 5.9 yr (first record Dec 14, 2020) with no new permit activity recorded in 5.9 yr. High-impact scale (33 housing units across 0 permits).
- 2 new homes (Entitled)290 ft N
Active in "Entitled" for 2.8 yr (first record Jan 22, 2024) with no new permit activity recorded in 2.8 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: 2 entries (report years 2023, 2024).