809 W 9th St, Antioch, CA 94509 Property Records

Contra Costa County property record for 809 W 9th St, Antioch, CA 94509

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,421 sqft · built 1928
Lot Size	0.115 acres (5,000 sqft)
Owner	Individual Name on Record
Last Sale	$580,000 (Apr 2025)
Tax Bill	$7,830 (2025)
Deeds & Mortgages	May 2021 Sale & Mortgage Jul 2020 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`066-219-011-5`

Property Details

APN / Parcel Number

Primary APN	`066-219-011-5`
Alternative APN	`066-219-011`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	1 Story
Building Area	1,421 sqft Living Area
Gross Area	743 sqft
1st Floor Area	743 sqft

Exterior

Year Built	Built 1928
Effective Year Built	Effective 1940
Lot Area	5,000 sqft (0.115 acres)

Location & Zoning

Street Address	809 W 9TH ST
City	ANTIOCH
State	CA
Zip	94509-1542
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R3
Legal Description	TOWN OF ANTIOCH LOT 3 BLK 117
Legal Subdivision	ANTIOCH
Legal Block	117
Legal Lot Number	3
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	4
Census Block	4003
Census Tract	305000

Owner

Source: Contra Costa County records, as of July 14, 2026

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

Owner of Record	Individual Name on Record
Mailing Address	486 RICHDALE CT, BRENTWOOD, CA 94513-1573
Owner Type	Individual
Vesting	Sole Owner

Deeds, Mortgages & Sale History

Date	Document
May 5, 2021	Grant Deed, Transfer · FHA Mortgage SYNERGY ONE LENDING
Jul 1, 2020	Grant Deed, Transfer STEWART TITLE, STEWART TITLE/CA
Jul 19, 2017	Grant Deed, Transfer · Conventional Mortgage BANK OF STOCKTON

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 1, 2025 · Amount on Record
Deed Sale	Apr 1, 2025 · Amount on Record
Prior Sale	May 5, 2021 · Amount on Record
Deed Document Number	202530398
Prior Transfer Date	Apr 27, 2015
Prior Transfer Doc	0000087585
Record Updated	Oct 29, 2026

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	May 5, 2021
Property Address	809 W 9TH ST, ANTIOCH, CA 94509-1542
Document Number	0000135517
Map Reference	MB C PG 48
Instrument Date	Apr 29, 2021
Instrument	2021-135517
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3401 FUTURA ROSE AVE, BAKERSFIELD, CA 93313-5534

Mortgage

Document Number	0000135518
Date	May 5, 2021
Instrument	2021-135518

Lender

Name	SYNERGY ONE LENDING
Type	Lending Institution

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 1, 2051

July 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 1, 2020
Property Address	809 W 9TH ST, ANTIOCH, CA 94509-1542
Document Number	0000130309
Instrument Date	Jun 22, 2020
Instrument	130309
Transaction Type	Transfer
Record Updated	Jul 24, 2020
Title Company	STEWART TITLE, STEWART TITLE/CA

Transaction

Amount	Amount Recorded
Tax	$537.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3502 SANFORD ST CONCORD CA 945201513, CONCORD, CA 94520-1513

July 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 19, 2017
Property Address	809 W 9TH ST, ANTIOCH, CA 94509-1542
Document Number	0000129067
Instrument Date	Jul 14, 2017
Instrument	129067
Transaction Type	Transfer
Record Updated	Jul 25, 2017
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$314.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	1056 STEEPLE BLVD BRENTWOOD CA 945132380, BRENTWOOD, CA 94513-2380

Mortgage

Document Number	129068
Date	Jul 19, 2017
Instrument	129068

Lender

Name	BANK OF STOCKTON
Type	Bank
Address	STOCKTON, CA 95201

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Antioch City
Unified School District	Antioch Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$591,600 (-1.59%) Land $280,500 Building $311,100
2025	$7,830.00 (+5.51%)	$601,181 (+4.04%) Land $270,608 Building $330,573
2023	$7,421.00 (+1.52%)	$577,838 Land $260,100 Building $317,738
2022	$7,310.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	5 in force

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 Risk	Not rated no burnable land within 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 System	CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001
Water Source	Surface water
Last State Inspection	Jan 2024
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 605 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25

May also be available: T-Mobile, Verizon.

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