1105 W 9th St, Antioch, CA 94509 Property Records

Contra Costa County property record for 1105 W 9th St, Antioch, CA 94509

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,284 sqft · built 1947
Lot Size	0.117 acres (5,100 sqft)
Owner	2 Individual Names on File
Tax Bill	$4,428 (2025)
Deeds & Mortgages	Nov 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`066-223-016-8`

Property Details

APN / Parcel Number

Primary APN	`066-223-016-8`
Alternative APN	`066-223-016`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,284 sqft Living Area
1st Floor Area	1,284 sqft

Exterior

Year Built	Built 1947
Effective Year Built	Effective 1951
Lot Area	5,100 sqft (0.117 acres)
Garage Type	Attached
Garage Area	210 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	1105 W 9TH ST
City	ANTIOCH
State	CA
Zip	94509-1025
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	WESTERN SUBN LOT 2 BLK 120
Legal Subdivision	WESTERN SUB
Legal Block	120
Legal Lot Number	2
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	4
Census Block	4008
Census Tract	305000

Owner

1105 W 9th St is owned and occupied by two individuals who acquired it in November 2017.

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

Owner of Record	2 Individual Names on File
Mailing Address	1105 W 9TH ST, ANTIOCH, CA 94509-1025
Occupancy	Owner Occupied
Owner Type	Individual

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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Nov 28, 2017
Transfer Doc	0000222986
Record Updated	Oct 29, 2026

November 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 28, 2017
Property Address	1105 W 9TH ST, ANTIOCH, CA 94509-1025
Document Number	0000222986
Instrument Date	Nov 28, 2017
Instrument	222986
Transaction Type	Transfer
Record Updated	Dec 4, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1105 W 9TH ST ANTIOCH CA 945091025, ANTIOCH, CA 94509-1025

Tax Assessment & Valuation

The 2025 property tax bill for 1105 W 9th St was $4,428.

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		$351,382 (+2%) Land $184,057 Building $167,325
2025	$4,428.00	$344,494 Land $180,449 Building $164,045
2023	$1,115.00 (+0.9%)	$54,137 Land $23,530 Building $30,607
2022	$1,105.00

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

Flood

FEMA maps place 1105 W 9th St in Zone X, an area of minimal flood risk.

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

The area around 1105 W 9th 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 372 locations within half a mile, as of December 31, 2025

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