605 Marathon Dr, Oakley, CA 94561 Property Records

Contra Costa County property record for 605 Marathon Dr, Oakley, CA 94561

Property Summary

Property Type	Single Family Home
Details	4 bd · 4.5 ba · 2,833 sqft · built 2021
Lot Size	0.117 acres (5,105 sqft)
Owner	2 Individual Names on File
Last Sale	$866,000 (May 2022)
Tax Bill	$15,227 (2025)
Deeds & Mortgages	May 2022 Sale & Mortgage Dec 2019 Sale
Flood Zone	Zone X (reduced by levee)
APN	`032-580-012-6`

Property Details

APN / Parcel Number

Primary APN	`032-580-012-6`
Alternative APN	`032-580-012`

Interior

Bedrooms	4 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,833 sqft Living Area
1st Floor Area	1,261 sqft
2nd Floor Area	1,572 sqft

Exterior

Year Built	Built 2021
Effective Year Built	Effective 2022
Lot Area	5,105 sqft (0.117 acres)
Garage Type	Attached
Garage Area	472 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	605 MARATHON DR
City	OAKLEY
State	CA
Zip	94561-1066
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T9481 L468
Legal Subdivision	GILBERT PROP SUB MAP 9481
Legal Tract	9481
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	EAST CONTRA COSTA
Census Block Group	1
Census Block	1025
Census Tract	302011

Owner

605 Marathon Dr is owned and occupied by two individuals who bought it in May 2022.

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

Owner of Record	2 Individual Names on File
Mailing Address	605 MARATHON DR, OAKLEY, CA 94561-1066
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

Date	Document
May 17, 2022	Grant Deed, Subdivision Related Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Dec 12, 2019	Grant Deed, Transfer FIRST AMERICAN TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 17, 2022 · Amount on File
Deed Sale	May 17, 2022 · Amount on File
Prior Sale	Jun 16, 2020 · Amount on File
Deed Document Number	202284151
Record Updated	Sep 20, 2026

May 2022: Grant Deed, Subdivision Related Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	May 17, 2022
Property Address	605 MARATHON DR, OAKLEY, CA 94561-1066
Document Number	0000084151
Map Reference	MB 538 PG 32
Instrument Date	Mar 9, 2022
Instrument	2022-084151
Transaction Type	Subdivision Related Transfer
Record Updated	Aug 1, 2023
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount on Record
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
Relationship	Joint Tenants
Address	636 EL CAMINO REAL # 126B, 126B, SOUTH SAN FRANCISCO, CA 94080-4446

Mortgage

Document Number	0000084152
Date	May 17, 2022
Instrument	2022-084152

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

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

December 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 12, 2019
Property Address	MARATHON DR, OAKLEY, CA 94561
Document Number	0000223746
Instrument Date	Dec 6, 2019
Instrument	223746
Transaction Type	Transfer
Record Updated	Dec 30, 2019
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount on Record
Tax	$17,107.20
Amount Accuracy	Full Value
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	1 HARBOR CTR #100 SUISUN CITY CA 945852468, 100, SUISUN CITY, CA 94585-2468
Investor	Possibly a Property Investor

Tax Assessment & Valuation

The 2025 property tax bill for 605 Marathon Dr was $15,227 with a homeowner's exemption.

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Oakley City
Secondary School District	Liberty Union High School District (09 - 12)
Elementary School District	Oakley Union Elementary School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$792,000 (-1.74%) Land $206,000 Building $586,000
2025	$15,227.00 Homeowner's exemption	$806,000 Land $209,483 Building $596,517
2023	$14,925.00 (+46.51%) Homeowner's exemption	$790,000 Land $205,000 Building $585,000
2022	$10,187.00

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

Flood

FEMA maps place 605 Marathon Dr in Zone X, where a levee reduces 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 reduced by levee · depends on levee performance
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	7 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

Wildfire risk around 605 Marathon Dr is moderate, ranking above 63% of the US, with a 0.2% annual chance of wildfire.

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

Wildfire Risk	Moderate above 63% of the US · lower than 61% of California
Wildfire Likelihood	0.2% annual chance
Exposure	None 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 System	DIABLO WATER DISTRICT serves 47,158 people · EPA ID CA0710007
Water Source	Purchased surface water from RANDALL-BOLD WATER TREATMENT PLANT
Last State Inspection	Jan 2024
Also Mapped Here	CONTRA COSTA WATER DISTRICT
Lead	2 ppb (2020–2022) 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 762 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20

May also be available: T-Mobile.

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