21 Park Ln
Antioch 94509 · Antioch · Coordinates: 38.00948, -121.80707
Parcel & Assessor
- Lot size:
- 5,022 sq ft (0.12 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 01135
- Addresses on lot:
- 21 PARK LN
Zoning & Land Use
No published city zoning district at parcel centroid.
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
We don't have a zoning map for Antioch.
- SB 9: two homes on the lotCan't tell
We don't have a zoning map for Antioch.
- SB 9: split into two lotsCan't tell
We don't have a zoning map for Antioch.
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 06013C0143G, effective September 30, 2015
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $450,000 – $608,000 · Status: Off market
HUD Small Area FMR (ZIP 94509) · FY 2026
Studio $1,750 · 1BR $1,990 · 2BR $2,420 · 3BR $3,090 · 4BR $3,670
Nearby Activity (½ mile radius, since —)
6 active or recent development projects (6 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)0.18 mi E
Active in "Issued" for 2.5 yr (first record Apr 16, 2024) with no new permit activity recorded in 2.5 yr.
- New home (Issued)0.21 mi W
Active in "Issued" for 6.2 yr (first record Aug 20, 2020) with no new permit activity recorded in 6.2 yr.
- New home (Issued)0.22 mi SW
Active in "Issued" for 16 mo (first record Jun 25, 2025) with no new permit activity recorded in 16 mo.
- New home (Issued)0.24 mi W
Active in "Issued" for 6.4 yr (first record Jun 10, 2020) with no new permit activity recorded in 6.4 yr.
Permit & Project History on This Parcel (0 permits, 1 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 1 entry (report years 2024).