9864 Cook St, Thornton (Denver), CO 80229 Property Records

Adams County property record for 9864 Cook St, Thornton, CO 80229

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,476 sqft · built 1984
Lot Size	0.18 acres (7,841 sqft)
Owner	Individual Name on File
Last Sale	$450,000 (Mar 2023)
Tax Bill	$1,147 (2025)
Deeds & Mortgages	Feb 2024 Mortgage Mar 2023 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`R0040437`

Property Details

APN / Parcel Number

Primary APN	`R0040437`
Alternative APNs	`0171913411011` `171913411011`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Plumbing Fixtures	6 Plumbing Fixtures
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,476 sqft Living Area
1st Floor Area	828 sqft
2nd Floor Area	648 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	2 Fireplaces
Fireplace	Fireplace

Exterior

Year Built	Built 1984
Effective Year Built	Effective 2016
Architectural Style	Other
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	7,841 sqft (0.18 acres)
Lot Dimensions	107 ft deep x 73 ft wide
Garage Type	Attached
Garage Area	399 sqft
Parking Spaces	1 Parking Space
Porch	Porch

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC

Location & Zoning

Account Number	R0040437
Old Parcel Number	171913411011
Street Address	9864 COOK ST
City	THORNTON
State	CO
Zip	80229-2807
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:NORTH HILLS FILING NUMBER ONE SUBD BLK:6 LOT:7
Legal Range	68W
Legal Township	02S
Legal Section	13
Legal Quarter	SW
Legal Subdivision	NORTH HILLS FILING NUMBER ONE SUBD
Legal Block	6
Legal Lot Number	7
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	1
Census Block	1018
Census Tract	9207

Owner

9864 Cook St is owned and occupied by an individual who bought it in March 2023.

Source: Adams County records, as of February 9, 2026

Owner of Record	Individual Name on File
Mailing Address	9864 COOK ST, THORNTON, CO 80229-2807
Occupancy	Owner Occupied
Owner Type	Individual

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

Deeds, Mortgages & Sale History

Date	Document
Feb 7, 2024	Deed of Trust, Mortgage · VA Mortgage XPERT HOME LENDING INC
Mar 27, 2023	Warranty Deed, Transfer · VA Mortgage MORTGAGE RESEARCH CENTER LLC
Apr 20, 2021	Deed of Trust, Mortgage · Conventional Mortgage NATIONSTAR MORTGAGE LLC
Jun 5, 2017	Warranty Deed, Transfer · FHA Mortgage PARKSIDE LNDG

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 27, 2023 · Amount on File
Deed Sale	Mar 27, 2023 · Amount on File
Prior Sale	Jun 5, 2017 · Amount on File
Deed Document Number	2023000015864
Record Updated	Jun 8, 2026

February 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	9864 COOK ST, THORNTON, CO 80229-2807
Transaction Type	Mortgage
Record Updated	Feb 14, 2024
Title Company	ATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	9864 COOK ST, THORNTON, CO 80229-2807

Mortgage

Document Number	0000006337
Date	Feb 7, 2024
Instrument	2024000006337

Lender

Name	XPERT HOME LENDING INC
Type	Mortgage Company
Address	SUWANEE, GA 30024

Agreement

Type	VA Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2054

March 2023: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Mar 27, 2023
Property Address	9864 COOK ST, THORNTON, CO 80229-2807
Document Number	0000015864
Instrument Date	Mar 14, 2023
Instrument	2023000015864
Transaction Type	Transfer
Record Updated	Apr 4, 2023
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$45.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	9864 COOK ST, THORNTON, CO 80229-2807

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	9864 COOK ST, THORNTON, CO 80229-2807

Mortgage

Document Number	0000015865
Date	Mar 27, 2023
Instrument	2023000015865

Lender

Name	MORTGAGE RESEARCH CENTER LLC
Type	Mortgage Company

Agreement

Type	VA Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2053

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	9864 COOK ST, THORNTON, CO 80229-2807
Transaction Type	Mortgage
Record Updated	Apr 28, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000047078
Date	Apr 20, 2021
Instrument	2021000047078

Lender

Name	NATIONSTAR MORTGAGE LLC
Type	Mortgage Company
Address	COPPELL, TX 75019

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	May 1, 2051

June 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Jun 5, 2017
Property Address	9864 COOK ST, THORNTON, CO 80229-2807
Document Number	0000048199
Instrument Date	Jun 2, 2017
Instrument	48199
Transaction Type	Transfer
Record Updated	Jun 13, 2017
Title Company	COLORADO TITLE LLC, COLORADO TITLE GUARANTY CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$31.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	9864 COOK ST THORNTON CO 802292807, THORNTON, CO 80229-2807

Mortgage

Document Number	48200
Date	Jun 5, 2017
Instrument	48200

Lender

Name	PARKSIDE LNDG
Address	SAN FRANCISCO, CA 94103

Agreement

Type	FHA Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jun 4, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 9864 Cook St was $1,147.

Source: Adams County assessment roll, as of August 25, 2025

Property Jurisdictions

Type	Name
State	Colorado
County	Adams County
Municipality	Thornton City
Unified School District	Mapleton School District 1 (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$1,147.00	$27,070 Land $5,630 Building $21,440	$433,000 Land $90,000 Building $343,000
2023	$3,146.00 (+3.66%)	$31,860 (+4.63%) Land $5,750 Building $26,110	$471,000 (+7.53%) Land $85,000 Building $386,000
2022	$3,035.00	$30,450 Land $11,820 Building $18,630	$438,029 Land $170,000 Building $268,029

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 9864 Cook St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 2, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 9864 Cook St is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 98% of the US · lower than 99.2% of Colorado
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 THORNTON serves 226,465 people · EPA ID CO0101150
Water Source	Surface water
Last State Inspection	Jul 2024
Lead	2 ppb (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	3 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 631 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
CenturyLink DSL	140 / 20
Rise Broadband Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Aerux Broadband.

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