573 Winncastle St, Simi Valley, CA 93065 Property Records

Ventura County property record for 573 Winncastle St, Simi Valley, CA 93065

Property Summary

Property Type	Single Family Home
Details	6 bd · 5.5 ba · 3,490 sqft · built 1997
Lot Size	0.19 acres (8,257 sqft)
Owner	2 Individual Names on File
Last Sale	$620,000 (Apr 2012)
Tax Bill	$10,335 (2025)
Deeds & Mortgages	Feb 2023 Line of Credit Sep 2021 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`596-0-121-365`

Property Details

APN / Parcel Number

Primary APN	`596-0-121-365`
Alternative APN	`6800470365`

Interior

Bedrooms	6 Beds
Full Baths	5.5 Baths
Half Baths	1 Half Bath
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	3,490 sqft Living Area
1st Floor Area	1,924 sqft
2nd Floor Area	1,566 sqft
Upper Floors Area	54 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1997
Effective Year Built	Effective 1997
Lot Area	8,257 sqft (0.19 acres)
Garage Area	447 sqft
Parking Spaces	2 Parking Spaces

Exterior Amenities

Pool Area	406 sqft
Porch	Slab
Porch Area	71 sqft
Patio Area	288 sqft

Location & Zoning

Old Parcel Number	6800470365
Street Address	573 WINNCASTLE ST
City	SIMI VALLEY
State	CA
Zip	93065-0620
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RPD1
Legal Description	TRACT: 423900 LOT: 218 REF: 117MR 3
Legal Subdivision	STONE CANYON
Legal Tract	423900
Legal Block	121
Legal Lot Number	218
Jurisdiction	VENTURA CA
Township / Civil Division	SIMI VALLEY
Census Block Group	1
Census Block	1000
Census Tract	7507

Owner

573 Winncastle St is owned and occupied by two individuals who bought it in April 2012.

Source: Ventura County records, as of October 15, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Individual Names on File
Mailing Address	573 WINNCASTLE ST, SIMI VALLEY, CA 93065-0620
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Feb 17, 2023	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA NA
Sep 1, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
Aug 31, 2020	Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 19, 2012 · Amount on File
Deed Sale	Apr 19, 2012 · Amount on File
Prior Sale	Oct 23, 1997 · Amount on File
Deed Document Number	201270909
Prior Transfer Date	Dec 24, 2008
Prior Transfer Doc	0000184428
Record Updated	Oct 29, 2026

February 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	VENTURA CA
Property Address	573 WINNCASTLE ST, SIMI VALLEY, CA 93065-0620
Transaction Type	Mortgage
Record Updated	Mar 2, 2023
Title Company	WFG LENDER SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	573 WINNCASTLE ST, SIMI VALLEY, CA 93065-0620

Mortgage

Document Number	0000012148
Date	Feb 17, 2023
Instrument	2023000012148

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	FORT WORTH, TX 76155

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	VENTURA CA
Property Address	573 WINNCASTLE ST, SIMI VALLEY, CA 93065-0620
Transaction Type	Mortgage
Record Updated	Sep 13, 2021
Title Company	WFT NATIONAL TITLE, WFG NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	573 WINNCASTLE ST, SIMI VALLEY, CA 93065-0620

Mortgage

Document Number	0000163028
Date	Sep 1, 2021
Instrument	20210901-00163028

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CARY, IL 60013

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Sep 1, 2036

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	VENTURA CA
Property Address	573 WINNCASTLE ST, SIMI VALLEY, CA 93065-0620
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	573 WINNCASTLE ST, SIMI VALLEY, CA 93065-0620

Mortgage

Document Number	0000134563
Date	Aug 31, 2020
Instrument	20200831-00134563

Lender

Name	OWNING CORPORATION
Type	Non-Lending Institution
Address	ORANGE, CA 92868

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	181 Months
Due	Sep 1, 2035

Tax Assessment & Valuation

The 2025 property tax bill for 573 Winncastle St was $10,335 with a homeowner's exemption, up 1.1% from the year before.

Source: Ventura County assessment roll, as of July 15, 2026

Property Jurisdictions

Type	Name
State	California
County	Ventura County
Municipality	Simi Valley City
Unified School District	Simi Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$896,809 (+2%) Land $448,406 Building $448,403
2025	$10,335.00 (+1.14%) Homeowner's exemption	$879,225 Land $439,614 Building $439,611
2024	$10,219.00 (+6.3%)
2023	$9,613.00 (+0.05%) Homeowner's exemption	$845,085 Land $422,543 Building $422,542
2022	$9,608.00

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

Flood

FEMA maps place 573 Winncastle St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.

Source: FEMA National Flood Hazard Layer, effective September 30, 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	4 in force
Nearby Flood Claims	1 (1998)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 1998 · Severe Winter Storms And Flooding

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

Wildfire risk around 573 Winncastle St is moderate, ranking above 51% of the US, with a 0.08% annual chance of wildfire.

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

Wildfire Risk	Moderate above 51% of the US · lower than 70% of California
Wildfire Likelihood	0.08% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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	VENTURA WWD NO. 8 - SIMI VALLEY serves 94,736 people · EPA ID CA5610023
Water Source	Purchased surface water from CALLEGUAS MUNICIPAL WATER DIST
Last State Inspection	Jan 2023
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 208 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 35
Rocket Broadband Fixed Wireless	450 / 100

May also be available: AT&T, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Winncastle St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures