909 C St, Antioch, CA 94509 Property Records

Contra Costa County property record for 909 C St, Antioch, CA 94509

Property Summary

Property Type	Multi-Family Dwellings
Details	2,438 sqft · built 1914
Lot Size	0.175 acres (7,600 sqft)
Owner	Company Name on File
Last Sale	$605,000 (Apr 2019)
Tax Bill	$9,203 (2025)
Deeds & Mortgages	Feb 2022 Sale Dec 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`066-189-012-9`

Property Details

APN / Parcel Number

Primary APN	`066-189-012-9`
Alternative APN	`066-189-012`

Interior

Total Rooms	4 Rooms
Stories	1 Story
Building Area	2,438 sqft Living Area
Gross Area	878 sqft
1st Floor Area	878 sqft

Exterior

Year Built	Built 1914
Effective Year Built	Effective 1940
Architectural Style	Multi-Family
Lot Area	7,600 sqft (0.175 acres)

Location & Zoning

Street Address	909 C ST, 915
City	ANTIOCH
State	CA
Zip	94509-1720
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	PCL MAP 66 PG 8 PCL A
Legal Subdivision	PARCEL MAP MS 4 77
Legal Tract	66PM8
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	1
Census Block	1018
Census Tract	305000

Owner

909 C St is owned by a company that bought it in April 2019.

Source: Contra Costa County records, as of October 12, 2026

Owner of Record	Company Name on File
Mailing Address	PO BOX 3341, ANTIOCH, CA 94531-3341
Owner Type	Company

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Feb 9, 2022	Grant Deed, Transfer
Dec 7, 2021	Grant Deed, Transfer · Conventional Mortgage ARC HOME LLC
Apr 19, 2019	Quit Claim Deed, Transfer NOT AVAILABLE
Apr 17, 2019	Grant Deed, Transfer · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 17, 2019 · Amount on File
Deed Sale	Apr 17, 2019 · Amount on File
Prior Sale	Dec 28, 2001 · Amount on File
Deed Document Number	201953097
Prior Transfer Date	Dec 11, 2001
Prior Transfer Doc	0000403731
Record Updated	Oct 29, 2026

February 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 9, 2022
Property Address	909 C ST, ANTIOCH, CA 94509-1720
Document Number	0000025325
Map Reference	MB 66 PG 8
Instrument Date	Feb 8, 2022
Instrument	2022-025325
Transaction Type	Transfer
Record Updated	Nov 3, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	PO BOX 3341, ANTIOCH, CA 94531-3341

December 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 7, 2021
Property Address	909 C ST, ANTIOCH, CA 94509-1720
Document Number	0000333208
Map Reference	MB 66 PG 8
Instrument Date	Nov 1, 2021
Instrument	2021-333208
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	TICOR TITLE ORANGE COUNTY BR, TICOR TTL ORANGE CNTY BRANCH

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	5042 CLAREMONT COURT, OAKLAND, CA 94661

Mortgage

Document Number	0000333209
Date	Dec 7, 2021
Instrument	2021-333209

Lender

Name	ARC HOME LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jan 1, 2052

April 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 19, 2019
Property Address	909 C ST, ANTIOCH, CA 94509-1720
Document Number	0000054633
Instrument Date	Apr 17, 2019
Instrument	54633
Transaction Type	Transfer
Record Updated	May 16, 2019
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	5042 CLAREMONT CT OAKLEY CA 945613323, OAKLEY, CA 94561-3323

April 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 17, 2019
Property Address	909 C ST, ANTIOCH, CA 94509-1720
Document Number	0000053097
Instrument Date	Apr 12, 2019
Instrument	53097
Transaction Type	Transfer
Record Updated	Apr 26, 2019
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$665.50
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	5042 CLAREMONT CT OAKLEY CA 945613323, OAKLEY, CA 94561-3323

Mortgage

Document Number	53098
Date	Apr 17, 2019
Instrument	53098

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Apr 16, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 909 C St was $9,203.

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		$688,380 (+2%) Land $199,117 Building $489,263
2025	$9,203.00	$674,883 Land $195,213 Building $479,670
2023	$8,229.00 (+1.54%)	$648,679 Land $187,634 Building $461,045
2022	$8,104.00

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

Flood

FEMA maps place 909 C St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

The area around 909 C St has no burnable land within ember reach, so its wildfire risk is not rated.

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 593 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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