3857 Aragon Ln, San Ramon, CA 94583 Property Records

Contra Costa County property record for 3857 Aragon Ln, San Ramon, CA 94583

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,815 sqft · built 1979
Lot Size	0.222 acres (9,660 sqft)
Owner	Company Name on Record
Tax Bill	$7,321 (2025)
Deeds & Mortgages	Nov 2022 Mortgage Sep 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`209-471-008`

Property Details

APN / Parcel Number

Primary APN	`209-471-008`
Alternative APN	`209-471-008-0`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,815 sqft Living Area
1st Floor Area	1,815 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1980
Architectural Style	Ranch
Exterior Material	Wood
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	9,660 sqft (0.222 acres)
Lot Dimensions	115 ft deep x 84 ft wide
Garage Type	Attached
Garage Area	447 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	3857 ARAGON LN
City	SAN RAMON
State	CA
Zip	94583-1835
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T05216 L0008 B
Legal Subdivision	SUBDIVISION 5216
Legal Tract	05216
Legal Lot Number	8
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1002
Census Tract	345116

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	Company Name on Record
Mailing Address	3857 ARAGON LN, SAN RAMON, CA 94583-1835
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Nov 29, 2022	Deed of Trust, Mortgage AMERICAN BUSINESS BANK
Sep 27, 2021	Deed of Trust, Mortgage · Conventional Mortgage CALIBER HOME LOANS INC
Mar 20, 2020	Deed of Trust, Mortgage · Conventional Mortgage CALIBER HM LOANS
Nov 9, 2019	Deed of Trust, Mortgage · Conventional Mortgage CALIBER HM LOANS

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Dec 26, 2008
Transfer Doc	0000162404
Record Updated	Sep 20, 2026

November 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3857 ARAGON LN, SAN RAMON, CA 94583-1835
Transaction Type	Mortgage
Record Updated	Dec 6, 2022
Title Company	TICOR TITLE NATL COM SVCS

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3857 ARAGON LN, SAN RAMON, CA 94583-1835

Mortgage

Document Number	0000178584
Date	Nov 29, 2022
Instrument	2022-178584

Lender

Name	AMERICAN BUSINESS BANK
Type	Bank
Address	LOS ANGELES, CA 90071

Agreement

Amount	Amount Recorded

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3857 ARAGON LN, SAN RAMON, CA 94583-1835
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	WFG NATIONAL TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3857 ARAGON LN, SAN RAMON, CA 94583-1835

Mortgage

Document Number	0000266895
Date	Sep 27, 2021
Instrument	2021-266895

Lender

Name	CALIBER HOME LOANS INC
Type	Mortgage Company
Address	COPPELL, TX 75019

Agreement

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

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3857 ARAGON LN, SAN RAMON, CA 94583-1835
Document Number	0000056285
Instrument Date	Mar 20, 2020
Transaction Type	Mortgage
Record Updated	Apr 14, 2020
Title Company	WFG TITLE INSURANCE COMPANY, WFG TITLE INS CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	3857 ARAGON LN SAN RAMON CA 945831835, SAN RAMON, CA 94583-1835

Mortgage

Document Number	0000056285
Date	Mar 24, 2020
Instrument	56285

Lender

Name	CALIBER HM LOANS
Type	Funding / Finance Company
Address	DANVILLE, CA 94526

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 23, 2050

November 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3857 ARAGON LN, SAN RAMON, CA 94583-1835
Document Number	0000204486
Instrument Date	Nov 9, 2019
Transaction Type	Mortgage
Record Updated	Nov 26, 2019
Title Company	TITLE SERVICE AND LIAISON COMPANIES, SYNRGO INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	3857 ARAGON LN SAN RAMON CA 945831835, SAN RAMON, CA 94583-1835

Mortgage

Document Number	0000204486
Date	Nov 15, 2019
Instrument	204486

Lender

Name	CALIBER HM LOANS
Type	Funding / Finance Company
Address	COPPELL, TX 75019

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Nov 14, 2049

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	San Ramon City
Unified School District	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$588,750 (+2%) Land $258,384 Building $330,366
2025	$7,321.00 (+3.95%)	$577,207 (+4.04%) Land $253,318 Building $323,889
2023	$7,043.00 (+0.76%)	$554,795 Land $243,482 Building $311,313
2022	$6,990.00

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
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	1 in force
Nearby Flood Claims	1 (2025)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 2025 · other causes

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 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 267 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

May also be available: AT&T, T-Mobile.

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