505 Marathon Dr, Oakley, CA 94561 Property Records

Contra Costa County property record for 505 Marathon Dr, Oakley, CA 94561

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,802 sqft · built 2021
Lot Size	0.105 acres (4,584 sqft)
Owner	Trust Name on File
Last Sale	$636,000 (Aug 2021)
Tax Bill	$10,640 (2025)
Deeds & Mortgages	Nov 2022 Transfer Aug 2021 Sale & Mortgage
Flood Zone	Zone X (reduced by levee)
APN	`032-530-153-9`

Property Details

APN / Parcel Number

Primary APN	`032-530-153-9`
Alternative APN	`032-530-153`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,802 sqft Living Area
1st Floor Area	1,802 sqft

Exterior

Year Built	Built 2021
Effective Year Built	Effective 2021
Lot Area	4,584 sqft (0.105 acres)
Garage Type	Attached
Garage Area	464 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	505 MARATHON DR
City	OAKLEY
State	CA
Zip	94561-1065
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T9473 L138
Legal Subdivision	GILBERT PROP PH 1 SUB MAP
Legal Tract	9473
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	EAST CONTRA COSTA
Census Block Group	1
Census Block	1025
Census Tract	302011

Owner

505 Marathon Dr is owner-occupied and held in a trust since November 2022.

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

Owner of Record	Trust Name on File
Mailing Address	505 MARATHON DR, OAKLEY, CA 94561-1065
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

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
Nov 18, 2022	Intrafamily Transfer, Transfer
Aug 12, 2021	Grant Deed, Transfer · Conventional Mortgage KBHS HOME LOANS LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 12, 2021 · Amount on File
Deed Sale	Aug 12, 2021 · Amount on File
Deed Document Number	2021225289
Last Transfer Date	Nov 8, 2022
Transfer Doc	0000175154
Record Updated	Sep 20, 2026

November 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 18, 2022
Property Address	505 MARATHON DR, OAKLEY, CA 94561-1065
Document Number	0000175154
Map Reference	MB 536 PG 1
Instrument Date	Nov 8, 2022
Instrument	2022-175154
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	505 MARATHON DR, OAKLEY, CA 94561-1065

August 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Aug 12, 2021
Property Address	505 MARATHON DR, OAKLEY, CA 94561-1065
Document Number	0000225289
Map Reference	MB 536 PG 1
Instrument Date	Jun 14, 2021
Instrument	2021-225289
Transaction Type	Transfer
Record Updated	Nov 3, 2022
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	Community Property with Right of Survivorship
Address	505 MARATHON DR, OAKLEY, CA 94561-1065

Mortgage

Document Number	0000225290
Date	Aug 12, 2021
Instrument	2021-225290

Lender

Name	KBHS HOME LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Aug 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 505 Marathon Dr was $10,640 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		$385,468 (+2%) Land $132,078 Building $253,390
2025	$10,640.00 Homeowner's exemption	$377,911 Land $129,489 Building $248,422
2023	$10,289.00 (+1.99%) Homeowner's exemption	$363,237 Land $124,461 Building $238,776
2022	$10,088.00

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

Flood

FEMA maps place 505 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 505 Marathon Dr is moderate, ranking above 55% of the US, with a 0.1% annual chance of wildfire.

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

Wildfire Risk	Moderate above 55% of the US · lower than 67% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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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