3870 Washington St, Byron, CA 94514 Property Records

Contra Costa County property record for 3870 Washington St, Byron, CA 94514

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,278 sqft · built 1930
Lot Size	0.23 acres (10,000 sqft)
Owner	2 Individual Names on Record
Last Sale	$174,000 (Apr 2017)
Tax Bill	$4,511 (2025)
Deeds & Mortgages	Apr 2017 Sale
Flood Zone	Zone X (moderate risk)
APN	`002-083-007-1`

Property Details

APN / Parcel Number

Primary APN	`002-083-007-1`
Alternative APN	`002-083-007`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,278 sqft Living Area
1st Floor Area	1,278 sqft

Exterior

Year Built	Built 1930
Effective Year Built	Effective 1970
Lot Area	10,000 sqft (0.23 acres)

Location & Zoning

Street Address	3870 WASHINGTON ST
City	BYRON
State	CA
Zip	94514
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RB
Legal Description	EPSTEIN ADDN LOTS 14 & 16 BLK 8
Legal Subdivision	EPSTEIN ADD
Legal Block	8
Legal Lot Number	14,16
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	EAST CONTRA COSTA
Census Block Group	1
Census Block	1029
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	PO BOX 423, BYRON, CA 94514-0423
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 26, 2017 · Amount on Record
Deed Sale	Apr 26, 2017 · Amount on Record
Deed Document Number	201772170
Prior Transfer Date	Apr 21, 2017
Prior Transfer Doc	0000072169
Record Updated	Sep 20, 2026

April 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 26, 2017
Property Address	3870 WASHINGTON ST, BYRON, CA 94514
Document Number	0000072170
Instrument Date	Apr 21, 2017
Instrument	72170
Transaction Type	Transfer
Record Updated	May 4, 2017
Title Company	NORTH AMERICAN TITLE

Transaction

Amount	Amount Recorded
Tax	$191.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	3870 WASHINGTON ST BYRON CA 94514, BYRON, CA 94514

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		$313,062 (+2%) Land $171,647 Building $141,415
2025	$4,511.00 (+36.49%)	$306,925 (+4.04%) Land $168,282 Building $138,643
2023	$3,305.00 (-23.18%)	$295,009 Land $161,749 Building $133,260
2022	$4,302.00

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	Moderate above 62% of the US · lower than 62% of California
Wildfire Likelihood	0.2% 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 114 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