901 Diego Dr, Oakley, CA 94561 Property Records

Contra Costa County property record for 901 Diego Dr, Oakley, CA 94561

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,331 sqft · built 2021
Lot Size	0.074 acres (3,215 sqft)
Owner	2 Trust Names on File
Last Sale	$630,000 (Feb 2023)
Tax Bill	$10,598 (2025)
Deeds & Mortgages	Feb 2023 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`037-610-137-4`

Property Details

APN / Parcel Number

Primary APN	`037-610-137-4`
Alternative APN	`037-610-137`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,331 sqft Living Area
1st Floor Area	996 sqft
2nd Floor Area	1,335 sqft

Exterior

Year Built	Built 2021
Effective Year Built	Effective 2023
Lot Area	3,215 sqft (0.074 acres)
Garage Type	Attached
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	901 DIEGO DR
City	OAKLEY
State	CA
Zip	94561-6038
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T9503 L137
Legal Subdivision	ALICANTE SUB 9503
Legal Tract	9503
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	EAST CONTRA COSTA
Census Block Group	1
Census Block	1004
Census Tract	302005

Owner

901 Diego Dr is owner-occupied and held in a trust since January 2025.

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

Owner of Record	2 Trust Names on File
Mailing Address	901 DIEGO DR, OAKLEY, CA 94561-6038
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Revocable 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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 28, 2023 · Amount on File
Deed Sale	Feb 28, 2023 · Amount on File
Deed Document Number	202317984
Last Transfer Date	Jan 6, 2025
Transfer Doc	0000001928
Record Updated	Sep 20, 2026

February 2023: Grant Deed, Subdivision Related Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 28, 2023
Property Address	901 DIEGO DR, OAKLEY, CA 94561-6038
Document Number	0000017984
Map Reference	MB 543 PG 11-21
Instrument Date	Feb 8, 2023
Instrument	2023-017984
Transaction Type	Subdivision Related Transfer
Record Updated	Mar 9, 2023
Title Company	FIRST AMERICAN TITLE COMPANY HOMEBU, FIRST AMER TTL CO HOMEBUILDE

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	901 DIEGO DR, OAKLEY, CA 94561-6038

Mortgage

Document Number	0000017985
Date	Feb 28, 2023
Instrument	2023-017985

Lender

Name	LOANDEPOT.COM LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2053

Tax Assessment & Valuation

The 2025 property tax bill for 901 Diego Dr was $10,598 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
Unified School District	Antioch Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$668,560 (+2%) Land $185,711 Building $482,849
2025	$10,598.00 Homeowner's exemption	$655,452 Land $182,070 Building $473,382
2023	$8,774.00 (+77.97%)	$499,216 Land $126,216 Building $373,000
2022	$4,930.00

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

Flood

FEMA maps place 901 Diego Dr 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

Wildfire risk around 901 Diego Dr is low, with a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% 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 622 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20