OFF MARKET

Off market mar 2023 for $450K

$442,902

Est. refi paymentEst. refi $3,632/mo

•

1,476

sq ft

9864 Cook St, Thornton, CO 80229

About this home

Public Remarks: This lovely two-story home features an updated Kitchen, massive private backyard, 3 beds and 1 1/2 baths. Buy with confidence because the big systems have already been updated here; NEW Furnace and AC [2020], NEW Pella Windows and sliding doors [2022], NEW Attic Insulation [2022], NEW Sewer Line [2018]! You can just move right in, make a few cosmetic updates and enjoy your beautiful home! This floorplan offers two family rooms or flex space for an office or playroom, formal dining nook, 1/2 bath on the main - convenient for guests, a large kitchen with tons of storage and countertop space, stainless steel appliances, hickory cabinets and granite countertops! Upstairs features 3 beds, 1 full bath and laundry on the upper level (where all of your laundry IS!). Enjoy a cold winter evening in front of your wood burning fireplace(s) or a beautiful Summer evening on your spacious back deck. Plenty of room for the kids or dogs to play outside too! Close to walking paths, choice schools, parks, shopping, dining and many options for entertainment. Thornton is growing and this central location allows easy access to highways!

Single-familyProperty Type

1984Year Built

7,811 sq ftLot Size

$300Est. Price/Sq.Ft.

2 car garageParking

Listed by Kendra Lanterman • West and Main Homes Inc

Contact: Kendra@WestandMainHomes.com,720-434-6432

Bought with Jennifer Hall • eXp Realty, LLC

•888-440-2724 (broker)

•co.broker@exprealty.net (broker)

Redfin checked: 2 minutes ago

•Source:IRES as Distributed by MLS Grid #6047799

Redfin Estimate

$442,902

$7,098 since sold in March 2023$0 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.7% lower than the average sale price ($455K) of 6 comparable homes.

SOLD MAY 13, 2026
$440,000
A
3 beds2 baths1,711 sq ft
9843 Cook St, Thornton, CO 80229
Listing provided by metrolistCO
SOLD JUN 29, 2026
$402,000
B
3 beds2 baths1,296 sq ft
3143 E 96th Pl, Thornton, CO 80229
Listing provided by metrolistCO
SOLD APR 20, 2026
$471,000
C
3 beds2 baths1,268 sq ft
9885 Madison St, Thornton, CO 80229
Listing provided by metrolistCO
SOLD MAR 3, 2026
$444,000
D
3 beds2 baths1,296 sq ft
2840 E 98th Ave, Thornton, CO 80229
Listing provided by metrolistCO
SOLD SEP 8, 2026
$495,000
E
3 beds2 baths1,268 sq ft
9806 Madison St, Thornton, CO 80229
Listing provided by metrolistCO
SOLD BY REDFIN MAY 5, 2026
$479,500
F
3 beds2 baths1,745 sq ft
9867 Monroe St, Thornton, CO 80229
Listing provided by metrolistCO

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$79,395

Est. take-home

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Refinance

Est. cash available

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Rent

$2,700/mo

Redfin rental estimate

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Market trends in 80229, CO

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

99.8%

0.1% MoM

Median sale price

$435K

$10K MoM

Avg. days on market

39d

12 days MoM

Recently sold homes

112

0 MoM

New listings for sale

OPEN SAT, 11AM TO 12PM
$247,500
3 beds3 baths1,764 sq ft
2467 Rainbow Dr #38, Thornton, CO 80229
Megan Freedle • Freedle and Associates LLC
COMING SOON
2259 Coronado Pkwy N Unit C, Denver, CO 80229
$265,000
2 beds2 baths1,440 sq ft
2259 Coronado Pkwy N Unit C, Denver, CO 80229
Todd Welch • RE/MAX Alliance
FOR SALE BY OWNER
$75,000
2 beds1 bath— sq ft
2837 E 93rd Pl, Thornton, CO 80229
3D WALKTHROUGH
$415,000
2 beds2 baths1,335 sq ft
10334 Adams Pl, Thornton, CO 80229
Kristen Miller • A Perfect Location Realty
3D WALKTHROUGH
$234,000
1 bed1 bath600 sq ft
8813 Colorado Blvd #207, Thornton, CO 80229
Michelle Williams • HomeSmart
$269,000
3 beds2 baths1,505 sq ft
8450 Adams Way, Denver, CO 80229
$530,000
3 beds2 baths1,602 sq ft
9640 Clermont Ln, Thornton, CO 80229
Tracy Reed • Colorado Homes of Distinction
3D WALKTHROUGH
$225,000
1 bed1 bath640 sq ft
8230 Washington St #20, Denver, CO 80229
Pamala Carter • West and Main Homes Inc
$309,870
2 beds2 baths1,147 sq ft
3281 E 103rd Pl #1403, Thornton, CO 80229
Jordan Schwartz • Engel & Volkers Denver
$475,000
4 beds2 baths1,632 sq ft
8470 Franklin Dr, Denver, CO 80229
Nicole Dingle • Century 21 Signature Realty, Inc
See all

Provided by Redfin

Sale history for 9864 Cook St

Date

Event

Price

IRES as Distributed by MLS Grid #6047799

Mar 17, 2023

Sold

$450,000

$305/sq ft

Feb 10, 2023

Pending

—

Feb 9, 2023

Listed

$435,000

$295/sq ft

IRES as Distributed by MLS Grid #2027878

Oct 28, 2022

Listing Removed

—

Oct 13, 2022

Listed

$465,000

$315/sq ft

Public Records

Jun 5, 2017

Sold

$313,000

$212/sq ft

REColorado as Distributed by MLS Grid #7561121

May 5, 2017

Listed

$290,000

$196/sq ft

Public Records

Jun 3, 2011

Sold

$110,500

$75/sq ft

REColorado as Distributed by MLS Grid #937982

Jan 24, 2011

Price Changed

$120,000

$81/sq ft

Public Records

Apr 9, 2002

Sold

$183,900

$125/sq ft

Public Records

Apr 1, 1994

Sold

$102,950

$70/sq ft

Public Records

Jul 11, 1984

Sold

$77,450

$52/sq ft

Join or sign in to view all info

Year

Property tax

Land + Additions

Assessment*

2025

$2,788 (+5.3%)

$6,120 + $23,320

$29,440

2024

$2,649 (+0.8%)

$5,310 + $24,130

$29,440

2023

$2,627 (+7.4%)

$5,310 + $24,130

$29,440

2022

$2,446 (+6.0%)

$5,910 + $18,630

$24,540

2021

$2,307 (+8.5%)

$6,080 + $19,160

$25,240

2020

$2,126 (−0.6%)

$6,080 + $16,770

$22,850

2019

$2,138 (+40.6%)

$6,080 + $16,770

$22,850

2018

$1,521 (+2.1%)

$5,760 + $9,540

$15,300

2017

$1,491 (+15.3%)

$5,760 + $9,540

$15,300

2016

$1,293 (+14.4%)

$5,760 + $9,540

$15,300

2015

$1,130 (+14.3%)

$3,180 + $9,830

$13,010

2014

$989 (+1.4%)

$3,180 + $9,830

$13,010

2013

$976 (−0.8%)

$2,310 + $8,760

$11,070

2012

$984 (+0.4%)

$2,550 + $8,980

$11,530

2011

$980 (−3.1%)

$2,550 + $8,980

$11,530

2010

$1,012 (+4.4%)

$2,550 + $8,980

$11,530

2009

$969

$2,470 + $9,440

$11,910

Tax history for 9864 Cook St

Year

Property tax

Land + Additions

Assessment*

2025

$2,788 (+5.3%)

$6,120 + $23,320

$29,440

2024

$2,649 (+0.8%)

$5,310 + $24,130

$29,440

2023

$2,627 (+7.4%)

$5,310 + $24,130

$29,440

2022

$2,446 (+6.0%)

$5,910 + $18,630

$24,540

2021

$2,307 (+8.5%)

$6,080 + $19,160

$25,240

2020

$2,126 (−0.6%)

$6,080 + $16,770

$22,850

2019

$2,138 (+40.6%)

$6,080 + $16,770

$22,850

2018

$1,521 (+2.1%)

$5,760 + $9,540

$15,300

2017

$1,491 (+15.3%)

$5,760 + $9,540

$15,300

2016

$1,293 (+14.4%)

$5,760 + $9,540

$15,300

2015

$1,130 (+14.3%)

$3,180 + $9,830

$13,010

2014

$989 (+1.4%)

$3,180 + $9,830

$13,010

2013

$976 (−0.8%)

$2,310 + $8,760

$11,070

2012

$984 (+0.4%)

$2,550 + $8,980

$11,530

2011

$980 (−3.1%)

$2,550 + $8,980

$11,530

2010

$1,012 (+4.4%)

$2,550 + $8,980

$11,530

2009

$969

$2,470 + $9,440

$11,910

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

Lot width

73 ft.

Lot depth

107 ft.

Lot size

7,811 Sq. Ft.

Year renovated

1984

Sq. Ft.

1,476

Year built

1984

Style

Single Family Residential

County

Adams County

APN

R0040437

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 9, 2026.

SFD

Single-Family Detached District

The Comprehensive Plan calls for the development of low density residential areas within the city. One of the main forms of low density residential development is the individual single-family home on its own lot. The Single-Family Detached District provides for the development and protection of this type of development. A variety of different lot sizes and housing forms are appropriate in this district depending on its location within the community and its relationship to adjacent areas. Specific lot configurations and architectural styles within this district shall be determined through the platting process and the development permit review process.

Permitted uses

Include but are not limited to:

Garden center
Housing-Group
Housing-Single unit
Infrastructure
Park & open space

Aug 16, 2024 • Final

Residential alteration

Remove and replace siding with James Hardie siding.

Remodel

Mar 14, 2018 • Final

Plumbing

Repair the sewer service line in the yard.

Plumbing

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking Features
Covered Spaces: 2
Garage: Yes
Attached Garage: Yes
Garage Spaces: 2

Interior

Virtual Tour Information
Virtual Tour 1 Caption: URL Large Window
Virtual Tour 1 MLS Source: REcolorado

Bathroom Information
Bathrooms (Full): 1
Bathrooms (Half): 1
Bathrooms (Three Quarter): 0

Bedroom Information
Bedrooms Total: 3

Heating & Cooling
Cooling: Yes
Central Air
Heating: Yes
Forced Air

Interior Features
Accessibility Features: Level Lot
Dishwasher, Refrigerator, Washer, Dryer, Microwave, Disposal
Fireplace: Yes
Fireplace Features: 2+ Fireplaces, Living Room, Family/Recreation Room Fireplace
Pantry
Laundry Features: Upper Level

Room Information
Basement: Crawl Space

Exterior

Exterior Features
Fencing: Fenced
Patio and Porch Features: Deck
Roof: Composition

Land Information
Road Surface Type: Paved

Lot Information
Horse(s): No
Lot Features: Lawn Sprinkler System, Level

Property Information
Property Type: Residential
Waterfront: No

Subdivision Information
Subdivision Name: North Hills
MLS Area Major: Metro Denver

Building Information
Above Grade Finished Area: 1476
Building Area Total: 1476
Construction Materials: Wood/Frame

Financial

Tax Information
Tax Annual Amount: 2307
Tax Year: 2021

Financial Information
Listing Terms: Cash, Conventional, FHA, VA Loan, 1031 Exchange

Utilities

Utility Information
Utilities: Electricity Available, Cable Available
Electric: Electric
Sewer: City Sewer,Public Sewer

Location

HOA Information
Association: No

School Information
High School District: Mapleton 1
Elementary School: Meadow K-8
Middle or Junior School: Meadow K-8
High School: Academy

Location Information
Directions: From Thornton Parkway and I25, go East past York St. to Steel St. and turn Left (North), follow to E. 98th Ave. and turn Right (East) and take a Left onto Cook St. Property is on your Right.
Unparsed Address: 9864 Cook St Thornton CO 80229
Street Number: 9864
Street Name: Cook
Street Suffix: St
City: Thornton
State or Province: CO
County or Parish: Adams
Country: US
Postal Code: 80229
Coordinates: -104.94696,39.875145
Latitude: 39.875145
Longitude: -104.94696

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,476
Stories: 2.0
Lot Size: 7,811 square feet
Style: Single Family Residential
Year Built: 1984
Year Renovated: 1984
County: Adams County
APN: R0040437

Home facts updated by county records on Oct 9, 2026

Other

Miscellaneous Information
Exclusions: Sellers personal property

Listing Information
Attribution Contact: Kendra@WestandMainHomes.com,720-434-6432
Close Price: $450,000
Photos Count: 23
Special Listing Conditions: Private Owner
Standard Status: Closed

Listing Date Information
Close Date: Friday, March 17, 2023
Cumulative Days on Market: 2
Days on Market: 2
Listing Contract Date: Thursday, February 9, 2023
Modification Timestamp: Monday, November 17, 2025 11:09 PM

Home Information
Levels: Two
Window Features: Double Pane Windows
Year Built: 1984

Around this home

Schools

Explore Elementary School

Public PreK-8 • Assigned • 0.7mi

3/10

York International

Public K-12 • Assigned • 0.9mi

4/10

Academy High School

Public 9-12 • Assigned • 1.2mi

3/10

Mapleton Expeditionary School Of The Arts

Public 9-12 • Assigned • 1.3mi

2/10

Mapleton Early College High School

Public 9-12 • Assigned • 1.3mi

4/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 93° expected this year, 18 days in 30 years

2/10 Wind Factor

Minor risk of severe winds over next 30 years

4/10 Air Factor

5 unhealthy days expected this year, 7 days in 30 years

Provided by First Street

Historical weather

Thornton, CO • 80229

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.5 hours in June and 6.1 hours in December, placing it above the U.S. average for solar exposure.

10.5 hrs

6.1 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$421,000 – $510,000

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Listing provided by REColorado as Distributed by MLS Grid

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Listing provided by REColorado as Distributed by MLS Grid

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Listing provided by REColorado as Distributed by MLS Grid

3D WALKTHROUGH

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Listing provided by REColorado as Distributed by MLS Grid

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Listing provided by REColorado as Distributed by MLS Grid

Home values near 9864 Cook St

Data from public records.

Address	Redfin Estimate
9833 Cook St, Thornton, CO 3 Beds \| 2 Baths \| 1268 Sq. Ft.	$465,308
9863 Cook St, Thornton, CO 3 Beds \| 1 Baths \| 1236 Sq. Ft.	$402,809

Address	Redfin Estimate
9894 Cook St, Thornton, CO 3 Beds \| 2 Baths \| 1271 Sq. Ft.	$436,121
9873 Cook St, Thornton, CO 2 Beds \| 1 Baths \| 861 Sq. Ft.	$362,836

Address	Redfin Estimate
9883 Cook St, Thornton, CO 3 Beds \| 2 Baths \| 1236 Sq. Ft.	$420,542
9843 Cook St, Thornton, CO 3 Beds \| 2 Baths \| 1711 Sq. Ft.	$504,686

Property information provided by IRES as Distributed by MLS Grid when last listed in 2023. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 80229, CO

Sale history for 9864 Cook St

Tax history for 9864 Cook St

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 80229

Home values near 9864 Cook St

More real estate resources