Date
Details
Price
Change
Source
7/10/2020
Sold
$530,799
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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1/49
$689,000 New to Website
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Property Description
Exceptional former model ranch paired home showcasing premium upgrades and designer finishes throughout. The thoughtfully crafted floor plan features 2 main-floor bedrooms. The primary bedroom features a spacious bathroom that includes a walk-in shower. Through the bathroom you will find the impressive walk-in closet. The second bedroom is also an ensuite providing privacy and comfort. The kitchen is beautifully finished with quartz countertops, tile backsplash, stainless steel appliances and a large island. The kitchen, eating area and living room provide an open feel with plenty of natural light and views out the windows. This area also gives way to a secluded deck that looks out to the east and to the open space that surrounds the back of the property. The well designed walkout basement adds 2 additional bedrooms, one of which has its own bathroom with a walk-in shower and walk-in closet. The large living area in the basement, which includes a small sink, counter space and a gas fireplace, is ideal for entertaining or extended living arrangements. The finished lower level expands the living space while maintaining comfort and functionality. A rare opportunity to own a beautifully appointed, move-in-ready home with the convenience of low-maintenance living.
Full Property Details
Full Property Details for 12684 Ulster St
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General
- Price: $689,000
- HOA FEE: $309/month
- Taxes: $6,491 (2025)
- Status: Active
- Type: Duplex
- Source: MetroList_Colorado
- MLS ID: 8332881
- Updated: 5/20/2026
- Added to Site: 6 day(s) ago
Interior
- Interior Features: Eat-in Kitchen, Five Piece Bath, High Ceilings, Kitchen Island, Open Floorplan, Primary Suite, Quartz Counters, Smoke Free, Walk-In Closet(s)
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Basement, Basement, Basement
- Appliances: Cooktop, Dishwasher, Disposal, Microwave, Oven, Refrigerator, Sump Pump, Washer
- Flooring: Carpet
Rooms
Bathrooms
- Total Bathrooms: 4
- Full Bathrooms: 1
- 3/4 Bathrooms: 2
- Half Bathrooms: 1
- Main Floor Baths: 3
- Basement Baths: 1
Bedrooms
- Total Bedrooms: 4
- Bedrooms Main: 2
Other Rooms
- Laundry: Sink, In Unit
Additional Information
- Security/Safety: Carbon Monoxide Detector(s), Smoke Detector(s)
Exterior
- Porch/Patio/Deck: Deck
Parking
- Garage: Yes
- Garage Spaces: 2
- Total Spaces: 2
Location
- County: Adams
- Subdivision: Riverdale Ranch
- Driving Directions: 128th Ave to Ulster St south to property on east side of street
School Information
- Elem School District: School District 27-J
- Midd School District: School District 27-J
- High School District: School District 27-J
- Elementary School: Brantner
- Middle School: Roger Quist
- High School: Riverdale Ridge
Community
- Association: Yes
- Assoc. Name: Riverdale Ranch
- Assoc. Fees Include: Maintenance Grounds, Recycling, Snow Removal, Trash
- Pets Allowed: Yes
- Management Type: Professionally Managed
Heating & Cooling
- Cooling Type: Central Air
- Heating Type: Forced Air
Utilities
- Sewer: Public Sewer
- Water: Public
Structural Information
- Architectural Style: Contemporary
- Structure Type: Duplex
- Builder: Boulder Creek Neighborhoods
- Construction: Frame
- Basement: Yes
- Basement Desc.: Exterior Entry, Finished, Full, Sump Pump, Walk-Out Access
- Roof: Composition
- Common Walls: 1 Common Wall
- Windows: Window Coverings
- Square Feet: 3,153
- Sq. Ft. Source: Public Records
- Living Area: 2,865 Sq. Ft.
- Year Built: 2020
Lot Features
- Lot Size (Acres): 0.15
- Lot Size (Sq. Ft.): 6,534
Financial Considerations
- Association Fee: Yes
- Association Fee: $309
- Assoc Fee Freq.: Monthly
- Assoc Fee /Annual: $3,714
- Tax Amount: $6,491
- Tax Year: 2025
- Terms: 1031 Exchange, Cash, Conventional, FHA, VA Loan
Disclosures and Reports
- Ownership: Individual
- Special Conditions: None
- Legal Description: RIVERDALE RANCH SUBD BLK 16 LOT 13
- Exclusions: all personal property
- Property ID: R0199524
Listed by Carlson Associates
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Listing agent
— 12684 Ulster St —
Carlson Associates
cory@carlsonland.net,303-921-9754
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 12684 Ulster St
School District:Brighton School District 27j
| Name | Grades | Distance |
|---|---|---|
Brantner Elementary School 7800 East 133rd Avenue, Thornton, CO 80602 | PK-5 | 0.8 mi |
Rodger Quist Middle School 13451 Yosemite Street, Thornton, CO 80602 | 6-8 | 1.1 mi |
Riverdale Ridge High School 13380 Yosemite Street, Thornton, CO 80602 | 9-12 | 1.1 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 12684 Ulster St
Tax History
Tax History for 12684 Ulster St
Year
Property Taxes
Change
Tax Assessment
Change
2025
$4,011
-46%
$39,070
-11%
2024
$7,417
4%
$43,820
-1%
2023
$7,126
25%
$44,240
27%
2022
$5,684
18%
$34,960
14%
2021
$4,821
71%
$30,610
69%
2020
$2,827
3076%
$18,100
3075%
2019
$89
—
$570
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 12684 Ulster St
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- Duplex
- Active
- 3Beds
- 3Total Baths
- 2,991Sq. Ft.
- MLS # 6309702
Listed by Rocky Mountain Real Estate Inc
- Duplex
- Active
- 3Beds
- 3Total Baths
- 3,061Sq. Ft.
- MLS # 3945284
Listed by Keller Williams Realty Urban Elite
- Duplex
- Active
- Updated 5 days ago
- 2Beds
- 3Total Baths
- 2,893Sq. Ft.
- MLS # 3160906
Listed by Rotola & Company
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- Single Family
- Active
- Updated 4 days ago
- 4Beds
- 2Total Baths
- 2,288Sq. Ft.
- MLS # 1059747
Listed by Andy Hawbaker (970) 203-5066
- Single Family
- Active
- Updated 5 hours ago
- 4Beds
- 2Total Baths
- 1,834Sq. Ft.
- MLS # 1059770
Listed by eXp Realty LLC
- Single Family
- Active
- Updated 3 days ago
- 5Beds
- 2Total Baths
- 1,834Sq. Ft.
- MLS # 4482859
Listed by LPT Realty
- Single Family
- Active
- Updated 4 days ago
- 3Beds
- 2Total Baths
- 2,304Sq. Ft.
- MLS # 4896750
Listed by JPAR Modern Real Estate
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- Single Family
- Active
- Updated 6 days ago
- 4Beds
- 3Total Baths
- 1,952Sq. Ft.
- MLS # 6021887
Listed by The Pointe Real Estate Llc
- Single Family
- Active
- Updated 5 days ago
- 4Beds
- 2Total Baths
- 1,650Sq. Ft.
- MLS # 7935116
Listed by 8z Real Estate
- Single Family
- Active
- Updated 5 days ago
- 3Beds
- 2Total Baths
- 1,700Sq. Ft.
- MLS # 9995965
Listed by Mathisen Real Estate
- Townhouse
- Active
- Updated 6 days ago
- 4Beds
- 3Total Baths
- 1,764Sq. Ft.
- MLS # 3702266
Listed by Priority Realty
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- Duplex
- Closed
- Updated 8 days ago
- 4Beds
- 4Total Baths
- 3,153Sq. Ft.
- MLS # 7293009
Listed and Sold by Picaso Real Estate
- Single Family
- Closed
- 4Beds
- 3Total Baths
- 4,346Sq. Ft.
- MLS # 8520159
Listed by Marilyn McFall and Tyler Draheim
Sold by Compass-Denver
Sold by Compass-Denver
- Single Family
- Closed
- 4Beds
- 4Total Baths
- 2,967Sq. Ft.
- MLS # 6083528
Listed by PAK Home Realty
Sold by RE/MAX Alliance-Boulder
Sold by RE/MAX Alliance-Boulder
- Single Family
- Closed
- Updated 13 days ago
- 5Beds
- 4Total Baths
- 3,729Sq. Ft.
- MLS # 7118041
Listed by RE/MAX Professionals
Sold by RE/MAX Professionals
Sold by RE/MAX Professionals
12684 Ulster Street, Thornton, CO 80602 (MLS# 8332881) is a Duplex property with 4 bedrooms, 1 full bathroom and 3 partial bathrooms. 12684 Ulster Street is currently listed for $689,000 and was received on May 20, 2026. Want to learn more about 12684 Ulster Street? Do you have questions about finding other Duplex real estate for sale in Thornton? You can browse all Thornton real estate or contact a Coldwell Banker agent to request more information.