3985 Rancho Diablo Rd, Byron, CA 94514 Property Records

Contra Costa County property record for 3985 Rancho Diablo Rd, Byron, CA 94514

Property Summary

Property Type	Single Family Home
Details	7 bd · 5.5 ba · 4,505 sqft · built 1999
Lot Size	1.1 acres (48,351 sqft)
Owner	2 Individual Names on Record
Last Sale	$669,000 (Feb 2015)
Tax Bill	$19,583 (2025)
Deeds & Mortgages	Mar 2026 Mortgage Jun 2020 Mortgage + 1 more
Flood Zone	Zone X (moderate risk)
APN	`002-270-008-2`

Property Details

APN / Parcel Number

Primary APN	`002-270-008-2`
Alternative APN	`002-270-008`

Interior

Bedrooms	7 Beds
Full Baths	5.5 Baths
Half Baths	1 Half Bath
Total Rooms	18 Rooms
Stories	1 Story
Building Area	4,505 sqft Living Area
1st Floor Area	4,505 sqft

Exterior

Year Built	Built 1999
Effective Year Built	Effective 2010
Lot Area	48,351 sqft
Garage Type	Attached
Garage Area	942 sqft
Parking Spaces	4 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	3985 RANCHO DIABLO RD
City	BYRON
State	CA
Zip	94514-0108
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R40
Legal Description	T7969 L8
Legal Subdivision	SUBDIVISION 7969
Legal Tract	7969
Legal Lot Number	8
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	EAST CONTRA COSTA
Census Block Group	1
Census Block	1031
Census Tract	304002

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	3985 RANCHO DIABLO RD, BYRON, CA 94514-0108
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Mar 19, 2026	Deed of Trust, Mortgage · Conventional Mortgage ROCKET MORTGAGE LLC
Jun 10, 2020	Deed of Trust, Mortgage · Conventional Mortgage AMERISAVE MORTGAGE CORP
Oct 13, 2022	Deed of Trust, Mortgage · FHA Mortgage ROCKET MORTGAGE LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 23, 2015 · Amount on Record
Deed Sale	Feb 23, 2015 · Amount on Record
Prior Sale	Oct 15, 2008 · Amount on Record
Deed Document Number	201530281
Prior Transfer Date	Oct 7, 2010
Prior Transfer Doc	0000247846
Record Updated	Oct 29, 2026

March 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3985 RANCHO DIABLO RD, BYRON, CA 94514-0108
Transaction Type	Mortgage
Record Updated	Mar 31, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3985 RANCHO DIABLO RD, BYRON, CA 94514-0108

Mortgage

Document Number	0000026877
Date	Mar 19, 2026
Instrument	2026- 026877

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company
Address	1050 WOODWARD AVE, DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2056

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3985 RANCHO DIABLO RD, BYRON, CA 94514-0108
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	PLACER TITLE CO ROSEVILLE CA

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000111479
Date	Jun 10, 2020
Instrument	2020-111479

Lender

Name	AMERISAVE MORTGAGE CORP
Type	Mortgage Company
Address	ATLANTA, GA 30305

Agreement

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

October 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3985 RANCHO DIABLO RD, BYRON, CA 94514-0108
Transaction Type	Mortgage
Record Updated	Nov 3, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3985 RANCHO DIABLO RD, BYRON, CA 94514-0108

Mortgage

Document Number	0000153923
Date	Oct 13, 2022
Instrument	2022-153923

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2052

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,673,235 (+2%) Land $153,230 Building $1,520,005
2025	$19,583.00 (+119.32%)	$1,640,427 (+112.27%) Land $150,226 Building $1,490,201
2023	$8,929.00 (-9.13%)	$772,808 Land $144,394 Building $628,414
2022	$9,826.00

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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 22 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	22 in force
Nearby Flood Claims	7 (1980–2023)
Claims Outside the SFHA	2 of 7
Most Recent Claim	Mar 2023 · rainfall accumulation
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Jan 2023 · 2 claims

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	High above 83% of the US · above 62% of California
Wildfire Likelihood	0.7% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Internet Providers

Source: FCC Broadband Data Collection, based on 39 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	1,200 / 35
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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