1050 Castleton Way, Sunnyvale, CA 94087 Property Records

Santa Clara County property record for 1050 Castleton Way, Sunnyvale, CA 94087

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,718 sqft · built 1973
Lot Size	0.144 acres (6,270 sqft)
Owner	2 Individual Names on Record
Last Sale	$848,000 (Jan 2006)
Tax Bill	$13,418 (2025)
Deeds & Mortgages	Mar 2017 Mortgage Jan 2021 Mortgage
Flood Zone	Zone X (moderate risk)
APN	`313-07-001`

Property Details

APN / Parcel Number

Primary APN	`313-07-001`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,718 sqft Living Area
1st Floor Area	1,718 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1973
Effective Year Built	Effective 1973
Architectural Style	Custom Design
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	6,270 sqft (0.144 acres)
Lot Dimensions	110 ft deep x 57 ft wide
Garage Area	471 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch

Utilities, Heating & Cooling

Heating System	HVAC
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	1050 CASTLETON WAY
City	SUNNYVALE
State	CA
Zip	94087-3707
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	TRACT 5245 CAMINO DEL PRADO BOOK 310 PAGE 1 PAGE 2 LOT 7
Legal Subdivision	CAMINO DEL PRADO
Legal Tract	5245
Legal Lot Number	7
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1007
Census Tract	508205

Owner

Source: Santa Clara County records, as of July 27, 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	1050 CASTLETON WAY, SUNNYVALE, CA 94087-3707
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Mar 3, 2017	Deed of Trust, Mortgage · ARM US BANK NA
Jan 8, 2021	Deed of Trust, Mortgage · Conventional Mortgage CHERRY CREEK MORTGAGE CO INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 4, 2006 · Amount on Record
Deed Sale	Jan 4, 2006 · Amount on Record
Prior Sale	Oct 17, 2001 · Amount on Record
Deed Document Number	200618755160
Prior Transfer Date	Mar 24, 2001
Prior Transfer Doc	0015639586
Record Updated	Oct 29, 2026

March 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	1050 CASTLETON WAY, SUNNYVALE, CA 94087-3707
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0023594711
Date	Mar 3, 2017
Instrument	23594711

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	ARM
Amount	Amount Recorded
Term	360 Months
Due	Mar 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.62%
Adjustable	Adjustable Rate Rider
Type Change Date	Mar 1, 2027
Change Frequency	Annually
Min Rate At Change	2.75%
Max Rate At Change	8.62%
Index	1-Year CMT
Max Rate	8.62%

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	1050 CASTLETON WAY, SUNNYVALE, CA 94087-3707
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	BOSTON NATIONAL TTL AGCY LLC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1050 CASTLETON WAY, SUNNYVALE, CA 94087-3707

Mortgage

Document Number	0024780432
Date	Jan 8, 2021
Instrument	24780432

Lender

Name	CHERRY CREEK MORTGAGE CO INC
Type	Mortgage Company
Address	ENGLEWOOD, CO 80111

Agreement

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

Tax Assessment & Valuation

Source: Santa Clara County assessment roll, as of July 27, 2026

Property Jurisdictions

Type	Name
State	California
County	Santa Clara County
Municipality	Sunnyvale City
Unified School District	Santa Clara Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,182,020 (+2%) Land $1,010,580 Building $171,440
2025	$13,418.00 (+2.44%) Homeowner's exemption	$1,158,844 (+4.04%) Land $990,765 Building $168,079
2023	$13,099.00 (+1.72%) Homeowner's exemption	$1,113,847 Land $952,294 Building $161,553
2022	$12,877.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective January 18, 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
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	1 in force

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 97% of the US · lower than 97.8% of California
Wildfire Likelihood	Under 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	CITY OF SUNNYVALE serves 157,566 people · EPA ID CA4310014
Water Source	Purchased surface water from several systems
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	63 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 493 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Etheric Networks Fixed Wireless	250 / 100
Ridge Wireless Fixed Wireless	100 / 60
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, GeoLinks, Sail Internet, Verizon.

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