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5471 Trimonti Cir, Antioch, CA 94531 Property Records

Contra Costa County property record for 5471 Trimonti Cir, Antioch, CA 94531 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details5 bd · 3.5 ba · 2,949 sqft · built 2023
Lot Size0.153 acres (6,659 sqft)
Owner2 Individual Names on File
Last Sale$803,500 (Oct 2023)
Tax Bill$10,485 (2025)
Deeds & MortgagesOct 2023 Sale & Mortgage
Jul 2023 Sale
Flood ZoneZone X (minimal risk)
APN057-150-107-1

Property Details

APN / Parcel Number

Primary APN057-150-107-1
Alternative APN
  • 057-150-107

Interior

Bedrooms5 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Total Rooms13 Rooms
Stories2 Stories
Building Area2,949 sqft Living Area
1st Floor Area1,494 sqft
2nd Floor Area1,455 sqft

Exterior

Year BuiltBuilt 2023
Effective Year BuiltEffective 2023
Lot Area6,659 sqft (0.153 acres)
Garage TypeAttached
Garage Area614 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address5471 TRIMONTI CIR
CityANTIOCH
StateCA
Zip94531-8738
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT9449 L352
Legal SubdivisionAVIANO PH 2 SUB 9449
Legal Tract9449
JurisdictionCONTRA COSTA CA
Township / Civil DivisionEAST CONTRA COSTA
Census Block Group2
Census Block2016
Census Tract303207

Owner

Source: Contra Costa County records · APN 057-150-107-1

Assessment roll updated July 14, 2026 · Last verified July 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 File
Mailing Address5471 TRIMONTI CIR, ANTIOCH, CA 94531-8738
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

DateDocument
Oct 25, 2023Grant Deed, Subdivision Related Transfer · Conventional Mortgage
LOAN FACTORY INC
Jul 27, 2023Grant Deed, Transfer
LENNAR TITLE INC

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleOct 25, 2023 · Amount on Record
Deed SaleOct 25, 2023 · Amount on Record
Prior SaleJul 27, 2023 · Amount on Record
Deed Document Number2023107181
Record UpdatedSep 20, 2026

October 2023: Grant Deed, Subdivision Related Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateOct 25, 2023
Property Address5471 TRIMONTI CIR, ANTIOCH, CA 94531-8738
Document Number0000107181
Map ReferenceMB 544 PG 21-36
Instrument DateOct 20, 2023
Instrument2023-107181
Transaction TypeSubdivision Related Transfer
Record UpdatedNov 03, 2023
Title CompanyLENNAR TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property with Right of Survivorship
Address5471 TRIMONTI CIR, ANTIOCH, CA 94531-8738

Mortgage

Document Number0000107182
DateOct 25, 2023
Instrument2023-107182
Lender
NameLOAN FACTORY INC
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueNov 01, 2053

July 2023: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateJul 27, 2023
Property Address5471 TRIMONTI CIR, ANTIOCH, CA 94531-8738
Document Number0000071944
Map ReferenceMB 544 PG 21-36
Instrument DateMar 31, 2023
Instrument2023-071944
Transaction TypeTransfer
Record UpdatedAug 08, 2023
Title CompanyLENNAR TITLE INC

Transaction

AmountAmount Recorded
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address2603 CAMINO RAMON STE 525, 525, SAN RAMON, CA 94583-9131

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityAntioch City
Unified School DistrictAntioch Unified School District (KG - 12)

Tax Bill & Assessment History

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.

YearTax BillAssessed Value
2026$835,545 (+2%) Land $228,888 Building $606,657
2025$10,485.00 (+222.02%) Homeowner's exemption$819,162 (+346.85%) Land $224,400 Building $594,762
2023$3,256.00 (+72.55%)$183,318 Land $183,318
2022$1,887.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133032072, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Nearby Flood Policies2 in force

Wildfire

Wildfire RiskHigh
above 78% of the US · above 55% of California
Wildfire LikelihoodAbout 1 in 204 per year
ExposureDirect
burnable vegetation at the parcel

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.

Historic Designation

Source: NPS National Register of Historic Places · August 1, 2026 release · Last verified October 2026

Historic DistrictWithin the Shannon-Williamson Ranch
listed 1987 · 12 contributing resources · NRIS 87000003

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 77 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
AT&TFiber5,000 / 5,000
XfinityCable2,000 / 250
UnwiredFixed Wireless300 / 25

May also be available at this address: Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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