815 L St
Antioch 94509 · Antioch · Coordinates: 38.01206, -121.81940
Executive Verdict · Public-Records Synthesis
Located in Antioch and zero mapped flood, fire, or fault hazard overlaps; benchmark value $528,000 ($449,000–$607,000).
Upsides & Opportunities
- ✓ Area valuation benchmark anchored at $528,000
Estimated range $449,000–$607,000 derived from area zhvi + acs + permit benchmark and 4,918 sq ft lot geometry.
Source: ZIP 94509 Zillow Home Value Index ($536,330, September 2026) (Data provided by Zillow)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: minimal flood hazard)
all of the lot of the parcel intersects Zone X: minimal flood hazard. Outside mandatory federal SFHA insurance rules, but check local drainage and finished-floor requirements.
Source: FEMA National Flood Hazard Layer (parcel polygon)
- ! No published municipal zoning polygon on file
We could not verify a GIS base zone at this parcel centroid. Confirm zoning and allowable density directly with Antioch planning.
Source: Antioch GIS zoning registry
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home (0.17 mi S, issued). Inspect timeline history before assuming near-term completion.
Source: City of Richmond Planning & Building, PermitTrak (eTRAKiT permits, 1992 to April 2025) · HCD APR (½-mile radius)
- ! Bulk building permits not published for Antioch
Permit counts and nearby activity on this page may omit municipal counter records. Request a parcel permit report directly from the local building department.
Source: Source coverage registry (Antioch)
Parcel & Assessor
- Lot size:
- 4,918 sq ft (0.11 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 01135
- Addresses on lot:
- 815 L ST
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 06013C0139G, 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: $449,000 – $607,000 · 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 —)
89 active or recent development projects (89 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)0.17 mi S
Active in "Issued" for 16 mo (first record Jul 28, 2025) with no new permit activity recorded in 16 mo.
- Brooks & Creekside Model Homes. (Issued)0.45 mi NE
Active in "Issued" for 13 mo (first record Oct 22, 2025) with no new permit activity recorded in 13 mo.
- Brooks & Creekside Model Homes. (Issued)0.45 mi NE
Active in "Issued" for 13 mo (first record Oct 22, 2025) with no new permit activity recorded in 13 mo.
- Brooks & Creekside Model Homes. (Issued)0.45 mi NE
Active in "Issued" for 13 mo (first record Oct 22, 2025) with no new permit activity recorded in 13 mo.
Permit & Project History on This Parcel (0 permits, 0 grouped projects)
No building permits recorded on this parcel in our dataset.