1089 Treadwell Ave, Simi Valley, CA 93065 Property Records

Ventura County property record for 1089 Treadwell Ave, Simi Valley, CA 93065

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,166 sqft · built 1964
Lot Size	0.154 acres (6,689 sqft)
Owner	2 Trust Names on File
Last Sale	$175,000 (Sep 1996)
Tax Bill	$4,354 (2025)
Deeds & Mortgages	Oct 2020 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`639-0-062-095`

Property Details

APN / Parcel Number

Primary APN	`639-0-062-095`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,166 sqft Living Area
Gross Area	1,725 sqft
1st Floor Area	725 sqft
2nd Floor Area	1,000 sqft
Upper Floors Area	260 sqft

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1964
Lot Area	6,689 sqft (0.154 acres)
Lot Dimensions	100 ft deep x 66 ft wide
Garage Type	Carport
Garage Area	275 sqft
Carport	Carport
Carport Area	275 sqft
Parking Spaces	1 Parking Space
Pool Area	399 sqft
Patio Area	240 sqft

Location & Zoning

Street Address	1089 TREADWELL AVE
City	SIMI VALLEY
State	CA
Zip	93065-5039
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	TRACT: 145900 LOT: 64 REF: 037MR 076
Legal Subdivision	1459
Legal Tract	145900
Legal Block	62
Legal Lot Number	64
Jurisdiction	VENTURA CA
Township / Civil Division	SIMI VALLEY
Census Block Group	1
Census Block	1017
Census Tract	8004

Owner

1089 Treadwell Ave is owner-occupied and held in a trust since March 2025.

Source: Ventura County records, as of July 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 Trust Names on File
Mailing Address	1089 TREADWELL AVE, SIMI VALLEY, CA 93065-5039
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 30, 1996 · Amount on File
Deed Sale	Sep 30, 1996 · Amount on File
Deed Document Number	1996133498
Last Transfer Date	Mar 4, 2025
Transfer Doc	0000014902
Record Updated	Sep 20, 2026

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	VENTURA CA
Property Address	1089 TREADWELL AVE, SIMI VALLEY, CA 93065-5039
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	MORTGAGE CONNECT LP

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1089 TREADWELL AVE, SIMI VALLEY, CA 93065-5039

Mortgage

Document Number	0000179363
Date	Oct 28, 2020
Instrument	20201028-00179363

Lender

Name	CITIBANK NA
Type	Bank
Address	SIOUX FALLS, SD 57108

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

The 2025 property tax bill for 1089 Treadwell Ave was $4,354 with a homeowner's exemption, up 1.2% 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		$340,597 (+2%) Land $116,263 Building $224,334
2025	$4,354.00 (+1.21%)	$333,919 Land $113,983 Building $219,936
2024	$4,302.00 (+6.43%)
2023	$4,042.00 (+0.8%) Homeowner's exemption	$320,953 Land $109,556 Building $211,397
2022	$4,010.00

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

Flood

FEMA maps place 1089 Treadwell Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 23 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	23 in force
Nearby Flood Claims	3 (1995–2008)
Claims Outside the SFHA	1 of 3
Most Recent Claim	May 2008 · 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

Wildfire risk around 1089 Treadwell Ave is low, with a 0.04% annual chance of wildfire.

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

Wildfire Risk	Low lower than 63% of the US · lower than 78% of California
Wildfire Likelihood	0.04% annual chance
Exposure	Indirect within 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	GOLDEN STATE WATER COMPANY - SIMI VALLEY private · serves 45,086 people · EPA ID CA5610059
Water Source	Purchased surface water from CALLEGUAS MUNICIPAL WATER DIST
Last State Inspection	Jul 2022
Lead	6 ppb (2024–2026) 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 585 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
GigabitNow Fiber	5,000 / 5,000
Spectrum Cable	1,000 / 35
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20

May also be available: Rocket Broadband.

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