Date
Details
Price
Change
Source
2/01/2024
Sold
$608,000
—
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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$675,000
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Property Description & Video
5121 Mt Arapaho Circle, Longmont, COVideo Tour of 5121 Mt Arapaho Circle, Longmont, CO.
Welcome to 5121 Mt. Arapahoe Circle in Longmont-a versatile and thoughtfully updated home perfect for multi-generational living, savvy home hackers, or anyone seeking flexible space and income potential. One of the standout features is the newly renovated attached basement apartment, complete with its own private entrance and a charming, low-maintenance turf yard-ideal for guests, tenants, or extended family. Whether you're offsetting your mortgage or creating a private retreat, this setup opens the door to endless possibilities. The main level offers comfortable and functional living with a spacious primary suite, convenient half bath, dedicated dining room, bright kitchen, cozy living room, office space, and a laundry room for everyday ease. Upstairs, you'll find two expansive loft spaces-perfect for a home office, playroom, or additional living areas-along with two additional bedrooms and a full bathroom. Outside, enjoy Colorado living at its best with a beautifully designed patio and garden area, plus a large covered front porch that faces a peaceful park-perfect for morning coffee or evening unwinding. A detached three-car garage provides ample space for vehicles, storage, or hobbies. This home has been well cared for with many updates, including new windows and durable luxury vinyl plank flooring throughout, blending style with functionality. A rare opportunity to own a home that truly adapts to your lifestyle-whether you're investing, expanding, or simply settling in.
Full Property Details
Full Property Details for 5121 Mt Arapaho Circle
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General
- Price: $675,000
- HOA FEE: $11/month
- HOA FEE FREQ.: Annually
- Taxes: $4,524 (2025)
- Status: Active
- Type: Single Family
- Source: MetroList_Colorado
- MLS ID: 4174350
- Updated: 4/24/2026
- Added to Site: 10 day(s) ago
Interior
- Interior Features: Eat-in Kitchen, Five Piece Bath, Granite Counters, In-Law Floorplan, Kitchen Island, Open Floorplan, Primary Suite
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Gas, Living Room, Gas, Living Room, Gas, Living Room
- Appliances: Dishwasher, Disposal, Dryer, Microwave, Oven, Refrigerator, Washer
- Furnishings: Negotiable
- Flooring: Carpet, Tile, Vinyl
Rooms
Bathrooms
- Total Bathrooms: 4
- Full Bathrooms: 3
- Half Bathrooms: 1
- Main Floor Baths: 2
- Basement Baths: 1
Bedrooms
- Total Bedrooms: 4
- Bedrooms Main: 1
Additional Information
- Shared Amenities: Park, Playground
- Security/Safety: Carbon Monoxide Detector(s), Smoke Detector(s), Video Doorbell
Exterior
- Exterior Features: Garden, Private Yard, Rain Gutters
- Porch/Patio/Deck: Covered, Front Porch, Patio
Parking
- Carports: Yes
- Carport Spaces: 3
- Total Spaces: 3
Location
- County: Weld
- Subdivision: Summit View Estates
- Direction Faces: West
School Information
- Elem School District: St. Vrain Valley RE-1J
- Midd School District: St. Vrain Valley RE-1J
- High School District: St. Vrain Valley RE-1J
- Elementary School: Legacy
- Middle School: Coal Ridge
- High School: Frederick
Community
- Association: Yes
- Assoc. Name: Flagstaff Property Management
- Pets Allowed: Yes
- Management Type: Professionally Managed
Heating & Cooling
- Cooling Type: Central Air
- Heating Type: Forced Air
Utilities
- Gas: Yes
- Sewer: Public Sewer
- Water: Public
- Utility Description: Electricity Connected, Natural Gas Connected
Structural Information
- Structure Type: House
- Construction: Frame, Wood Siding
- Basement: Yes
- Basement Desc.: Exterior Entry, Finished, Walk-Out Access
- Roof: Composition
- Windows: Double Pane Windows
- Square Feet: 4,032
- Sq. Ft. Source: Public Records
- Living Area: 4,032 Sq. Ft.
- Year Built: 2000
- Property Condition: Updated/Remodeled
Lot Features
- Lot Size (Acres): 0.16
- Lot Size (Sq. Ft.): 6,821
- Frontage: Public
- Street/Road Desc.: Paved
- Road Maintenance: Public Maintained Road
- Fence: Yes
- Lot Features: Corner Lot, Many Trees, Sprinklers In Front, Sprinklers In Rear
- Fencing (Description): Full
Financial Considerations
- Association Fee: Yes
- Association Fee: $135
- Assoc Fee Freq.: Annually
- Assoc Fee /Annual: $135
- Tax Amount: $4,524
- Tax Year: 2025
- Terms: Cash, Conventional, FHA, VA Loan
Disclosures and Reports
- Ownership: Individual
- Special Conditions: None
- Legal Description: FRE 2SVE L6 BLK7 SUMMIT VIEW ESTATES 2ND
- Exclusions: Seller's Personal Property
- Property ID: R8308100
Listed by Key Team Real Estate Corp.
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Listing agents
— 5121 Mt Arapaho Circle —
Key Team Real Estate Corp.
Key Team Real Estate Corp.
elyse@thekey.team,303-435-4487
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 5121 Mt Arapaho Circle
School District:St. Vrain Valley School District Re 1j
| Name | Grades | Distance |
|---|---|---|
Legacy Elementary School 7701 Eagle Boulevard, Frederick, CO 80504 | PK-5 | 0.7 mi |
Coal Ridge Middle School 6201 Booth Drive, Firestone, CO 80504 | 6-8 | 2.6 mi |
Frederick Senior High School 5960 Tipple Parkway, Frederick, CO 80504 | 9-12 | 1.5 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 5121 Mt Arapaho Circle
Tax History
Tax History for 5121 Mt Arapaho Circle
Year
Property Taxes
Change
Tax Assessment
Change
2024
$4,145
—
$42,070
-7%
2024
$4,145
4%
$45,250
-1%
2023
$3,968
14%
$45,690
32%
2022
$3,470
-1%
$34,730
-3%
2021
$3,501
7%
$35,730
6%
2020
$3,280
-2%
$33,750
—
2019
$3,330
21%
$33,750
16%
2018
$2,748
-1%
$29,010
—
2017
$2,773
13%
$29,010
14%
2016
$2,449
3%
$25,470
—
2015
$2,375
34%
$25,470
34%
2014
$1,774
-1%
$19,030
—
2013
$1,794
—
$19,030
—
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 5121 Mt Arapaho Circle
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5121 Mt Arapaho Circle, Longmont, CO 80504 (MLS# 4174350) is a Single Family property with 4 bedrooms, 3 full bathrooms and 1 partial bathroom. 5121 Mt Arapaho Circle is currently listed for $675,000 and was received on April 23, 2026. Want to learn more about 5121 Mt Arapaho Circle? Do you have questions about finding other Single Family real estate for sale in Longmont? You can browse all Longmont real estate or contact a Coldwell Banker agent to request more information.