5121 Mt Arapaho Circle Longmont, CO $ 675,000
5121 Mt Arapaho Circle
$ 675,000
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5121 Mt Arapaho Circle

Longmont, CO, 80504
$ 675,000
Bedrooms4 Baths3.1 Sq 4,032

Monthly Estimate*

$ 4,156

Listed by Key Team Real Estate Corp.
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Single Family Home for sale in Longmont, CO

for $675,000 with 4 bedrooms and 3 full baths, 1 half bath. This 4,032 square foot home was built in 2000 on a lot size of 0.16.

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.

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Single Family Active

Price

$ 675,000

Bedrooms

4

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 4,524

Style

House

Lot Size

0.16

Year Built

2000

Town/City

Longmont

County/Region

Weld

MLS | Web ID

4174350

Features
Interior
Interior Amenities Eat-in Kitchen Five Piece Bath Granite Counters In-Law Floorplan Kitchen Island Open Floorplan Primary Suite
Basement Exterior Entry Finished Walk-Out Access
Flooring Carpet Tile Vinyl
Furnished Y/N Negotiable
Total Fireplaces 1
Fireplace Features Gas Living Room
Basement (Y/N) Y
Window Features Double Pane Windows
Above Grade Finished Area 2576
Half Baths 1
1/4 Baths 0
3/4 Baths 0
Total Bedrooms 4
Below Grade Finished Area 1456
Main Level Bedrooms 1
Main Level Bathrooms 2
Total Baths 4
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General
Sewer Public Sewer
Heating Forced Air
Cooling Central Air
Utilities Electricity Connected Natural Gas Connected
Possession Closing/DOD
Roof Composition
Appliances Dishwasher Disposal Dryer Microwave Oven Refrigerator Washer
HOA Fee 135
Garage Spaces 0
Patio/Porch Features Covered Front Porch Patio
Security Features Carbon Monoxide Detector(s) Smoke Detector(s) Video Doorbell
Construction Materials Frame Wood Siding
Exclusions Seller's Personal Property
Pets Allowed Cats OK Dogs OK
Year Built 2000
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Ownership Individual
Assoc Fee Paid Per Annually
County Weld
Property Type Residential
Association Amenities Park Playground
HOA Y
Attached Garage N
Subdivision Name Summit View Estates
Facing Direction West
Full Baths 3
Status Active
High School Frederick
City Longmont
Association Name Flagstaff Property Management
Senior Community Y/N N
High School District St. Vrain Valley RE-1J
Lot Size Units Square Feet
Lot Size Square Feet 6821
Carport Spaces 3
Listing Terms Cash Conventional FHA VA Loan
Elementary School Legacy
Tax Annual Amount 4524
Middle/Junior High School Coal Ridge
Property Condition Updated/Remodeled
Virtual Tour https://my.matterport.com/show/?m=udTLpqEzgQU
Structure Type House
Standard Status Active
Occupancy Type Owner
Middle/Junior School District St. Vrain Valley RE-1J
Elementary School District St. Vrain Valley RE-1J
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Exterior
Exterior Amenities Garden Private Yard Rain Gutters
Fencing Full
Lot Features Corner Lot Many Trees Sprinklers In Front Sprinklers In Rear
Water Source Public
Total Parking 3
Lot Size Area 6821
Building Area Total 4032
Lot Size Acres 0.16
Road Surface Type Paved
Road Frontage Type Public
Road Responsibility Public Maintained Road
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Internal Only
Street Number 1 5121
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* Excluded Features
List By
Key Team Real Estate Corp.

Broker

(303) 435-4487

Phone

Affordability Calculator

$4,533
Per Month
92%
8%
0%
Monthly Principal & Interest
$4,156
Monthly Property Taxes
$377
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
910880 Elementary School
910915 Middle School
Frederick High School High School
Pricing History
DatePricePrice ChangeDescription
4/23/2026$675,000 Listed Price

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5121 Mt Arapaho Circle, Longmont, CO, 80504 is a Single Family Home for sale at $675,000 with 4,032 sqft and a lot size of 0.16. 5121 Mt Arapaho Circle has 4 bedrooms, 3.1 baths, and was built in 2000. The property's zip code is 80504 which is in Longmont, CO