6378 Byron Ln, San Ramon, CA 94582 Property Records

Contra Costa County property record for 6378 Byron Ln, San Ramon, CA 94582

Property Summary

Property Type	Condominium
Details	4 bd · 3 ba · 2,347 sqft · built 2006
Lot Size	0.027 acres (1,170 sqft)
Owner	2 Individual Names on File
Last Sale	$1,175,000 (Aug 2025)
Tax Bill	$11,818 (2025)
Deeds & Mortgages	Jan 2026 Mortgage Jul 2018 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`223-630-008-9`

Property Details

APN / Parcel Number

Primary APN	`223-630-008-9`
Alternative APN	`223-630-008`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,347 sqft Living Area
1st Floor Area	1,172 sqft
2nd Floor Area	969 sqft
Basement Area	206 sqft

Exterior

Year Built	Built 2006
Effective Year Built	Effective 2006
Architectural Style	Condo/Apartment
Lot Area	1,170 sqft (0.027 acres)
Garage Type	Attached
Garage Area	521 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	6378 BYRON LN
City	SAN RAMON
State	CA
Zip	94582-3056
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	T8779 L5 B16 U66
Legal Subdivision	CELAMONTE SUB 8779
Legal Tract	8779
Legal Block	16
Legal Lot Number	5
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	1
Census Block	1008
Census Tract	355123

Owner

6378 Byron Ln, a condominium, is owned and occupied by two individuals who bought it in August 2025.

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

Owner of Record	2 Individual Names on File
Mailing Address	6378 BYRON LN, SAN RAMON, CA 94582-3056
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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
Jan 28, 2026	Deed of Trust, Mortgage · Conventional Mortgage US BANK NA
Jul 26, 2018	Deed of Trust, Mortgage · ARM US BANK NA
May 22, 2020	Deed of Trust, Mortgage · Conventional Mortgage US BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 5, 2025 · Amount on File
Deed Sale	Aug 5, 2025 · Amount on File
Prior Sale	Jul 24, 2009 · Amount on File
Deed Document Number	202578947
Record Updated	Oct 29, 2026

January 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	6378 BYRON LN, SAN RAMON, CA 94582-3056
Transaction Type	Mortgage
Record Updated	Jun 8, 2026
Title Company	E-CHICAGO TITLE, CHICAGO TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	6378 BYRON LN, SAN RAMON, CA 94582-3056

Mortgage

Document Number	0000008942
Date	Jan 28, 2026
Instrument	2026- 008942

Lender

Name	US BANK NA
Type	Bank
Address	2800 TAMARACK RD, OWENSBORO, KY 42301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	356 Months
Due	Sep 1, 2055

Interest

Rate Type	Adjustable Rate
Rate	6%
Adjustable	Adjustable Rate Rider
Type Change Date	Sep 1, 2035
Change Frequency	Annually
Min Rate At Change	2.75%
Max Rate At Change	11%
Index	1-Year CMT
Max Rate	11%

July 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	6378 BYRON LN, SAN RAMON, CA 94582-3056
Transaction Type	Mortgage
Record Updated	Nov 3, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000119186
Date	Jul 26, 2018
Instrument	2018-119186

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	3.75%
Type Change Date	Aug 1, 2025
Change Frequency	Annually
Min Rate At Change	2.75%
Max Rate At Change	8.75%
Index	1-Year CMT
Max Rate	8.75%

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	6378 BYRON LN, SAN RAMON, CA 94582-3056
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATL TTL SAN JOSE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000097990
Date	May 22, 2020
Instrument	2020-097990

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	3%
Type Change Date	Jun 1, 2027
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8%
Index	1-Year LIBOR
Max Rate	8%

Tax Assessment & Valuation

The 2025 property tax bill for 6378 Byron Ln was $11,818.

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	San Ramon City
Unified School District	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,138,000 (+67.93%) Land $610,000 Building $528,000
2025	$11,818.00	$677,664 Land $224,594 Building $453,070
2023	$11,795.00 (+1.87%)	$651,352 Land $215,874 Building $435,478
2022	$11,578.00

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

Flood

FEMA maps place 6378 Byron Ln 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 6378 Byron Ln is low, with a 0.05% annual chance of wildfire.

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

Wildfire Risk	Low lower than 62% of the US · lower than 77% of California
Wildfire Likelihood	0.05% 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	DUBLIN SAN RAMON SERVICES DISTRICT serves 98,776 people · EPA ID CA0110009
Water Source	Purchased surface water from ZONE 7 WATER AGENCY
Last State Inspection	Sep 2024
Lead	Under 1 ppb (2023–2025) 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 252 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
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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