136 Castleton Ct, San Ramon, CA 94583 Property Records

Contra Costa County property record for 136 Castleton Ct, San Ramon, CA 94583

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,042 sqft · built 1979
Lot Size	0.137 acres (5,985 sqft)
Owner	2 Company Names on Record
Last Sale	$825,000 (Jun 2006)
Tax Bill	$13,202 (2025)
Deeds & Mortgages	Nov 2017 Line of Credit Apr 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`209-560-010-8`

Property Details

APN / Parcel Number

Primary APN	`209-560-010-8`
Alternative APN	`209-560-010`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,042 sqft Living Area
Gross Area	2,472 sqft
1st Floor Area	1,190 sqft
2nd Floor Area	852 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1980
Architectural Style	Ranch
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	5,985 sqft (0.137 acres)
Garage Type	Attached
Garage Area	430 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

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

Location & Zoning

Street Address	136 CASTLETON CT
City	SAN RAMON
State	CA
Zip	94583-1839
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T05360 L0010 B EX MR
Legal Subdivision	SUBDIVISION 5360
Legal Tract	05360
Legal Lot Number	10
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	2 Company Names on Record
Mailing Address	136 CASTLETON CT, SAN RAMON, CA 94583-1839
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Nov 16, 2017	Deed of Trust, Mortgage · Line of Credit JPMORGAN CHASE BANK NA
Apr 1, 2021	Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 20, 2006 · Amount on Record
Deed Sale	Jun 20, 2006 · Amount on Record
Prior Sale	Aug 1, 1996 · Amount on Record
Deed Document Number	2006194723
Last Transfer Date	Sep 13, 2024
Transfer Doc	0000095192
Record Updated	Oct 29, 2026

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	136 CASTLETON CT, SAN RAMON, CA 94583-1839
Transaction Type	Mortgage
Record Updated	Nov 3, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000216285
Date	Nov 16, 2017
Instrument	2017-216285

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Nov 15, 2047

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	136 CASTLETON CT, SAN RAMON, CA 94583-1839
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	BOSTON NATIONAL TITLE L

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	136 CASTLETON CT, SAN RAMON, CA 94583-1839

Mortgage

Document Number	0000098449
Date	Apr 1, 2021
Instrument	2021-098449

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.75%
Type Change Date	Apr 1, 2028
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	7.75%
Index	1-Year LIBOR
Max Rate	7.75%

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		$1,149,964 (+2%) Land $808,464 Building $341,500
2025	$13,202.00 (+3.78%) Homeowner's exemption	$1,127,416 (+4.04%) Land $792,612 Building $334,804
2023	$12,721.00 (+0.76%) Homeowner's exemption	$1,083,639 Land $761,835 Building $321,804
2022	$12,625.00

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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