4481 4489 Appian Way
El Sobrante 94803 · Unincorporated Contra Costa · Coordinates: 37.97143, -122.30712
Parcel & Assessor
- Lot size:
- 81,463 sq ft (1.87 ac)
- Assessor use:
- Apartments, 25-59 units
- Tax rate area:
- 85004
- Addresses on lot:
- 4481 APPIAN WAY; 4489 APPIAN WAY; 455 LA PALOMA RD
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
- 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: $1,080,000 – $1,462,000 · 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)
10 active or recent development projects (10 housing units across completed, permitted, and pipeline stages) and 9 total building permits recorded within ½ mile.
- Additions & renovations2 permits
- Building systems3 permits
- Other4 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home (Entitled)On this parcel
Active in "Entitled" for 4.9 yr (first record Dec 7, 2021) with no new permit activity recorded in 4.9 yr.
- New home (Entitled)On this parcel
Active in "Entitled" for 5 yr (first record Nov 23, 2021) with no new permit activity recorded in 5 yr.
- Balmore Court (Entitled)0.38 mi S
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).
- New commercial building at 4555 Hilltop Dr (Applied)0.39 mi N
Active in "Applied" for 2 yr (first record Oct 31, 2024) with no new permit activity recorded in 2 yr. High-impact scale ($2,006,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (0 permits, 4 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 6 entries (report years 2021, 2022, 2023).