421 Diamond Peak Ln, Oakley, CA 94561 Property Records

Contra Costa County property record for 421 Diamond Peak Ln, Oakley, CA 94561

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,768 sqft · built 2019
Lot Size	0.152 acres (6,617 sqft)
Owner	2 Individual Names on Record
Last Sale	$617,000 (Jan 2020)
Tax Bill	$11,335 (2025)
Deeds & Mortgages	Feb 2021 Mortgage Oct 2020 Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`034-640-026`

Property Details

APN / Parcel Number

Primary APN	`034-640-026`
Alternative APN	`034-640-026-0`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	2,768 sqft Living Area
1st Floor Area	1,248 sqft
2nd Floor Area	1,520 sqft

Exterior

Year Built	Built 2019
Effective Year Built	Effective 2019
Lot Area	6,617 sqft (0.152 acres)
Garage Type	Attached
Garage Area	399 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	421 DIAMOND PEAK LN
City	OAKLEY
State	CA
Zip	94561-2185
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T9027 L26
Legal Subdivision	SUBDIVISION 9027
Legal Tract	9027
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	EAST CONTRA COSTA
Census Block Group	1
Census Block	1003
Census Tract	302007

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Feb 12, 2021	Deed of Trust, Mortgage · Conventional Mortgage TRAVIS CU
Oct 9, 2020	Deed of Trust, Mortgage · Conventional Mortgage PATELCO CU
Aug 27, 2021	Deed of Trust, Mortgage · Conventional Mortgage TRAVIS CU
Sep 30, 2022	Deed of Trust, Mortgage · Line of Credit TRAVIS CU
Jan 22, 2020	Grant Deed, Subdivision Related Transfer · Conventional Mortgage LOANDEPOT.COM LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 22, 2020 · Amount on Record
Deed Sale	Jan 22, 2020 · Amount on Record
Deed Document Number	202012313
Record Updated	Sep 20, 2026

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185

Mortgage

Document Number	0000043894
Date	Feb 12, 2021
Instrument	2021-043894

Lender

Name	TRAVIS CU
Type	Credit Union
Address	VACAVILLE, CA 95687

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2051

Interest

Rate Type	Fixed Rate
Rate	3.12%
Type Change Date	Mar 1, 2036
Change Frequency	10 Years
Min Rate At Change	3%
Max Rate At Change	9.12%
Index	10-Year TN
Margin	3
Max Rate	9.12%

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	PLACER TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185

Mortgage

Document Number	0000232277
Date	Oct 9, 2020
Instrument	2020-232277

Lender

Name	PATELCO CU
Type	Credit Union
Address	DUBLIN, CA 94568

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2050

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185

Mortgage

Document Number	0000240612
Date	Aug 27, 2021
Instrument	2021-240612

Lender

Name	TRAVIS CU
Type	Credit Union
Address	VACAVILLE, CA 95687

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2051

September 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	ACCOMMODATION

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185

Mortgage

Document Number	0000148405
Date	Sep 30, 2022
Instrument	2022-148405

Lender

Name	TRAVIS CU
Type	Credit Union
Address	92611

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	301 Months
Due	Oct 2, 2047

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2020: Grant Deed, Subdivision Related Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 22, 2020
Property Address	421 DIAMOND PEAK LN, OAKLEY, CA 94561-2185
Document Number	0000012313
Instrument Date	Jan 2, 2020
Instrument	12313
Transaction Type	Subdivision Related Transfer
Record Updated	Feb 4, 2020
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$679.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	421 DIAMOND PEAK LN OAKLEY CA 94561, OAKLEY, CA 94561

Mortgage

Document Number	12315
Date	Jan 22, 2020
Instrument	12315

Lender

Name	LOANDEPOT.COM LLC
Type	Funding / Finance Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jan 21, 2050

Tax Assessment & Valuation

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		$688,268 (+2%) Land $122,703 Building $565,565
2025	$11,335.00 (+3.71%)	$674,774 (+4.04%) Land $120,298 Building $554,476
2023	$10,929.00 (+1.82%)	$648,574 Land $115,628 Building $532,946
2022	$10,734.00

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

Flood

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	2 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

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

Wildfire Risk	Low lower than 97% of the US · lower than 97.8% 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 543 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
Verizon Fixed Wireless	300 / 20

May also be available: T-Mobile.

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