Bridget Marx

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Listing provided courtesy of Key Team Real Estate Corp.as Distributed by MLSGrid- MLS# 4174350MLS Provider

5121 Mt Arapaho CircleLongmont, CO 80504

Single Family · 4 Beds · 3 Full Baths · 1 Half Bath · 4,032 Sq. ft. | 0.16 Acres
$665,000 Active

5121 Mt Arapaho Circle Overview

Time on Site:
68 days
Visits:
1

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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5121 Mt Arapaho Circle Facts & Features

  • Type Single Family
  • Sq. ft. 4,032
  • Price/Sq.ft. $165
  • Lot 0.16 Acres

Details

General

Association/HOA

  • Association Amenities: Park,Playground
  • Association Fee: 135
  • Association Fee Frequency: Annually
  • Association Name: Flagstaff Property Management
  • Association: true

School Information

  • School District: St. Vrain Valley RE-1J
  • Elementary School: Legacy
  • Middle Or Junior School: Coal Ridge
  • High School: Frederick

Building Information

  • Year Built: 2000

Location/Region

  • Country: US
  • County Or Parish: Weld
  • Subdivision Name: Summit View Estates

Tax Information

  • Tax Annual Amount: 4524
  • Tax Year: 2025

General Information

  • Exclusions: Seller's Personal Property, Loft Cabinets (will be removed prior to contract)
  • Furnished: Negotiable
  • Listing Terms: Cash,Conventional,FHA,VA Loan
  • Ownership: Individual
  • Parcel Number: R8308100
  • Pets Allowed: Cats OK,Dogs OK
  • Property Condition: Updated/Remodeled
  • Property Sub Type: Single Family Residence
  • Property Type: Residential
  • Senior Community: false
  • Special Listing Conditions: None

Interior

Parking Information

  • Garage Spaces: 0

Beds/Baths

  • Bathrooms Full: 3
  • Bathrooms Half: 1
  • Bathrooms One Quarter: 0
  • Bathrooms Three Quarter: 0
  • Bathrooms Total: 4
  • Bedrooms Total: 4

Building Interior

  • Above Grade Finished Area: 2576
  • Below Grade Finished Area: 1456
  • Building Area Source: Public Records
  • Building Area Total: 4032

General Information

  • Appliances: Dishwasher,Disposal,Dryer,Microwave,Oven,Refrigerator,Washer
  • Cooling: Central Air
  • Fireplace Features: Gas,Living Room
  • Fireplaces Total: 1
  • Flooring: Carpet,Tile,Vinyl
  • Heating: Forced Air
  • Interior Features: Eat-in Kitchen,Five Piece Bath,Granite Counters,In-Law Floorplan,Kitchen Island,Open Floorplan,Primary Suite
  • Levels: Two
  • Living Area: 4032
  • Main Level Bathrooms: 2
  • Main Level Bedrooms: 1
  • Security Features: Carbon Monoxide Detector(s),Smoke Detector(s),Video Doorbell
  • Window Features: Double Pane Windows

Exterior

Parking Information

  • Parking Total: 3

Lot Information

  • Lot Features: Corner Lot,Many Trees,Sprinklers In Front,Sprinklers In Rear
  • Lot Size Acres: 0.16
  • Lot Size Area: 6821
  • Lot Size Square Feet: 6821
  • Lot Size Units: Square Feet
  • Road Responsibility: Public Maintained Road
  • Road Surface Type: Paved
  • Water Source: Public

Building Exterior/Construction

  • Attached Garage: false
  • Construction Materials: Frame,Wood Siding
  • Direction Faces: West
  • Patio And Porch Features: Covered,Front Porch,Patio
  • Roof: Composition
  • Structure Type: House

General Information

  • Carport Spaces: 3
  • Exterior Features: Garden,Private Yard,Rain Gutters
  • Fencing: Full
  • Road Frontage Type: Public
  • Sewer: Public Sewer
  • Utilities: Electricity Connected,Natural Gas Connected

Room Information

Room: Bathroom Full

  • Level: Basement

Room: Bedroom

  • Level: Basement

Room: Dining Room

  • Level: Basement

Room: Kitchen

  • Level: Basement

Room: Living Room

  • Level: Basement

Room: Bathroom Full

  • Level: Main
  • Features: En Suite Bathroom,Primary Suite

Room: Bathroom Half

  • Level: Main

Room: Bedroom

  • Level: Main
  • Features: Primary Suite

Room: Dining Room

  • Level: Main

Room: Kitchen

  • Level: Main

Room: Laundry

  • Level: Main

Room: Living Room

  • Level: Main

Room: Office

  • Level: Main

Room: Bathroom Full

  • Level: Upper

Room: Bedroom

  • Level: Upper

Room: Bedroom

  • Level: Upper

Room: Loft

  • Level: Upper

Room: Loft

  • Level: Upper

5121 Mt Arapaho Circle Neighborhood

Community

80504 (Longmont) Demographics

40
Median Age
522
Population Density (per sq. mile)
51%
College Educated
$92,977
Estimated Median Income
15,828
Estimated Total Home Owners
3,207
Estimated Total Renters
83% / 17%
Estimated Owner / Renter Divide
3
Estimated Average Household Size
Community data courtesy of LiveBy, Inc.

Schools

School data courtesy of LiveBy, Inc. School ratings are based on a scale of 1-5, with 5 being the highest rating and 1 being the lowest rating.

5121 Mt Arapaho Circle Monthly Cost

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* All calculations are estimates and provided by Reliance Network, for informational purposes only. Actual amounts may vary. ** Assumes 6.50% APR, 20% down payment, and conventional 30-year fixed rate first mortgage. Rates cited are for instructional purposes only; current rates are subject to change at any time without notice. You should not make any decisions based simply on the information provided. Additional required amounts such as taxes, insurance, homeowner association dues, assessments, mortgage insurance premiums, flood insurance or other such required payments should also be considered. Contact your mortgage company for current rates and additional information. Any mortgage broker or insurance agent that may appear is independent and is not affiliated with, endorsed by, or provided by the MLS.

5121 Mt Arapaho Circle Market Data

Based on the last 30 days in this zip code

$715,344
Average List Price
$249
Average Price per Square Foot
78
Properties Sold
80
Average Days on Market
435
Properties for Sale
Calculations provided by Reliance Network

5121 Mt Arapaho Circle History

Date Event Value Agent
5/27/2026Source: REColorado MLS Price Reduction
$665,000 -1.5%
4/23/2026Source: REColorado MLS Added to Database
April 23, 2026