1821 4th St, Simi Valley, CA 93065 Property Records

Ventura County property record for 1821 4th St, Simi Valley, CA 93065

Property Summary

Property TypeSingle Family Home
Details2 bd · 1 ba · 918 sqft · built 1955
Lot Size0.245 acres (10,650 sqft)
Owner2 Individual Names on Record
Last Sale$600,000 (Mar 2025)
Tax Bill$8,101 (2025)
Flood ZoneZone X (reduced by levee)
APN631-0-111-020

Property Details

APN / Parcel Number

Primary APN631-0-111-020

Interior

Bedrooms2 Beds
Full Baths1 Bath
Total Rooms4 Rooms
Stories1 Story
Building Area918 sqft Living Area
1st Floor Area918 sqft

Exterior

Year BuiltBuilt 1955
Effective Year BuiltEffective 1955
Lot Area10,650 sqft (0.245 acres)
Garage Area260 sqft
Parking Spaces1 Parking Space
PorchPorch
Porch Area118 sqft

Location & Zoning

Street Address1821 4TH ST
CitySIMI VALLEY
StateCA
Zip93065-3109
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeRM-4
Legal SubdivisionTOWNSITE OF SIMI
Legal Block2
JurisdictionVENTURA CA
Township / Civil DivisionSIMI VALLEY
Census Block Group2
Census Block2008
Census Tract7700

Owner

Source: Ventura County records, as of July 15, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on Record
Mailing Address1821 4TH ST, SIMI VALLEY, CA 93065-3109
OccupancyOwner Occupied
Owner TypeIndividual
VestingJoint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleMar 20, 2025 · Amount on Record
Deed SaleMar 20, 2025 · Amount on Record
Deed Document Number202518411
Prior Transfer DateMay 15, 2024
Prior Transfer Doc0000031707
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Ventura County assessment roll, as of July 15, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyVentura County
MunicipalitySimi Valley City
Unified School DistrictSimi Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$676,260 (+1.22%) Land $439,620 Building $236,640
2025$8,101.00 (+351.81%)$668,100 (+583.74%) Land $434,520 Building $233,580
2024$1,793.00 (+6.66%)
2023$1,681.00 (+2.69%) Homeowner's exemption$97,712 Land $42,142 Building $55,570
2022$1,637.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective September 30, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
reduced by levee · depends on levee performance
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 24 individual policies
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies116 units insured
incl. 92 condo units
Nearby Flood Claims2 (1998–2014)
Most Recent ClaimDec 2014 · other causes

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 97% of the US · lower than 97.8% of California
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemVENTURA WWD NO. 8 - SIMI VALLEY
serves 94,736 people · EPA ID CA5610023
Water SourcePurchased surface water from CALLEGUAS MUNICIPAL WATER DIST
Last State InspectionJan 2023
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 611 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Spectrum
Cable · Fiber in parts of the area
1,000 / 1,000
Rocket Broadband
Fixed Wireless
450 / 100
Verizon
Fixed Wireless
300 / 20
AT&T
DSL · Fiber in parts of the area
100 / 20

May also be available: GigabitNow, T-Mobile.

Nearby Properties on 4th St

Nearby Streets

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