6446 Union Avenue
Firestone, CO 80504
- 4 Beds
- 2.5 Baths
- 4,434 sqft (on 0.26 acres)
$614,700
Last Sold: Nov 14, 2025
3% below list $635K
$139/sqft
Est. Refi. Payment $3,435/mo*
$614,700
Last Sold: Nov 14, 2025
3% below list $635K
$139/sqft
Est. Refi. Payment $3,435/mo*
4 Beds
2.5 Baths
4,434 sqft
(on 0.26 acres)
Local Information
-- mins to
Description
Incredible Opportunity—2.5% VA Assumable Loan Available!
Welcome to 6446 Union Avenue, a beautifully upgraded home in one of Longmont’s most desirable neighborhoods. This residence blends modern finishes, functional enhancements, and custom design details that truly set it apart. Luxury vinyl plank flooring extends across the first floor, stairs, and upper hallway for both durability and style. A custom-built owner’s entry creates the perfect drop zone, while a dedicated office with built-in cabinetry provides an ideal work-from-home setup. The kitchen shines with quartz and granite countertops, an upgraded backsplash, and ample cabinetry, while the adjacent living room showcases a custom fireplace mantle and surround for a refined gathering space. Upstairs, the primary suite offers a private retreat with a shiplap tray ceiling and a custom-designed bath accented with stylish finishes. Additional bathrooms and the thoughtfully designed laundry room—with cabinetry and sink—continue the home’s elevated look and function. Outside, enjoy a custom-built pergola, built-in dog run, and open views thanks to an easement behind the property that protects against direct construction. Every detail has been carefully considered, offering move-in-ready comfort and quality.
Don’t miss your chance to secure a rare 2.5% VA assumable interest loan with this exceptional home.
Welcome to 6446 Union Avenue, a beautifully upgraded home in one of Longmont’s most desirable neighborhoods. This residence blends modern finishes, functional enhancements, and custom design details that truly set it apart. Luxury vinyl plank flooring extends across the first floor, stairs, and upper hallway for both durability and style. A custom-built owner’s entry creates the perfect drop zone, while a dedicated office with built-in cabinetry provides an ideal work-from-home setup. The kitchen shines with quartz and granite countertops, an upgraded backsplash, and ample cabinetry, while the adjacent living room showcases a custom fireplace mantle and surround for a refined gathering space. Upstairs, the primary suite offers a private retreat with a shiplap tray ceiling and a custom-designed bath accented with stylish finishes. Additional bathrooms and the thoughtfully designed laundry room—with cabinetry and sink—continue the home’s elevated look and function. Outside, enjoy a custom-built pergola, built-in dog run, and open views thanks to an easement behind the property that protects against direct construction. Every detail has been carefully considered, offering move-in-ready comfort and quality.
Don’t miss your chance to secure a rare 2.5% VA assumable interest loan with this exceptional home.
6446 Union Avenue, Firestone, CO 80504 is a 4 bedroom, 3 bathroom, 4,434 sqft single-family home built in 2013. It last sold for $614,700 on Nov 14, 2025 (3% below the $635,000 asking price). It is currently off market. The Trulia Estimate is $613,200, with a rent estimate of $3,418/month.
Home Highlights
Parking
2 Car Garage
Outdoor
Patio
A/C
Heating & Cooling
HOA
$28/Monthly
Price/Sqft
$139/sqft
Listed
180+ days ago
Home Details for 6446 Union Avenue
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Interior Details Basement: UnfinishedNumber of Rooms: 12Types of Rooms: Bedroom, Bathroom, Dining Room, Kitchen, Laundry, Living Room, Office |
Beds & Baths Number of Bedrooms: 4Number of Bathrooms: 3Number of Bathrooms (full): 2Number of Bathrooms (half): 1Number of Bathrooms (main level): 1 |
Dimensions and Layout Living Area: 4434 Square Feet |
Appliances & Utilities Utilities: Natural Gas AvailableAppliances: Dishwasher, Dryer, Microwave, Oven, Range, Refrigerator, WasherDishwasherDryerMicrowaveRefrigeratorWasher |
Heating & Cooling Heating: Forced AirHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Forced Air |
Fireplace & Spa Number of Fireplaces: 1Fireplace: Living RoomHas a Fireplace |
Gas & Electric Has Electric on Property |
Windows, Doors, Floors & Walls Window: Double Pane WindowsFlooring: Carpet, Laminate, TileCommon Walls: No Common Walls |
Levels, Entrance, & Accessibility Stories: 2Levels: TwoFloors: Carpet, Laminate, Tile |
View No View |
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Exterior Home Features Roof: CompositionPatio / Porch: PatioFencing: Full |
Parking & Garage Number of Garage Spaces: 2Number of Covered Spaces: 2Has a GarageHas an Attached GarageParking Spaces: 2Parking: Garage Attached |
Frontage Road Frontage: PublicResponsible for Road Maintenance: Public Maintained RoadRoad Surface Type: PavedNot on Waterfront |
Water & Sewer Sewer: Public Sewer |
Finished Area Finished Area (above surface): 3014 Square Feet |
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Year Built Year Built: 2013 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: HouseArchitecture: House |
Building Construction Materials: FrameNot Attached Property |
Property Information Not Included in Sale: Seller`s Personal Property, Mineral Rights.Parcel Number: R1078402 |
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Price List Price: $635,000Price Per Sqft: $139/sqft |
Status Change & Dates Off Market Date: Mon Oct 20 2025Possession Timing: See Remarks |
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MLS Status: Closed |
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Direction & Address City: FirestoneCommunity: Oak Meadows |
School Information Elementary School: Prairie RidgeElementary School District: St. Vrain Valley RE-1JJr High / Middle School: Coal RidgeJr High / Middle School District: St. Vrain Valley RE-1JHigh School: FrederickHigh School District: St. Vrain Valley RE-1J |
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Building Area Building Area: 4434 Square Feet |
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Not Senior Community |
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HOA Fee Includes: Maintenance GroundsHOA Name: Oak Meadows Owners AssociationHOA Phone: 720-340-4115Has an HOAHOA Fee: $335/Annually |
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Lot Area: 0.26 acres |
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Special Conditions: Standard |
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Contingencies: None KnownListing Terms: Cash, Conventional, FHA, VA Loan |
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Mobile Home Park Mobile Home Units: Feet |
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Business Information Ownership: Individual |
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BasementMls Number: 6217777Attribution Contact: hollysellsco@gmail.com, 720-556-0080Above Grade Unfinished Area: 3014Below Grade Unfinished Area: 1420Showing Service Name: Showing Time |
Last check for updates: about 5 hours ago
Listed by Holly Vejrostek, (720) 556-0080
LPT Realty
Bought with: Debbie Bacos, (206) 899-7779, HomeSmart Realty
Source: REcolorado as distributed by MLS GRID, MLS#6217777

Price History for 6446 Union Avenue
| Date | Price | Event | Source |
|---|---|---|---|
| 11/14/2025 | $614,700 | Sold | REcolorado as distributed by MLS GRID #6217777 |
| 10/20/2025 | $635,000 | Pending | REcolorado as distributed by MLS GRID #6217777 |
| 10/02/2025 | $635,000 | PriceChange | REcolorado as distributed by MLS GRID #6217777 |
| 09/05/2025 | $650,000 | Listed For Sale | REcolorado as distributed by MLS GRID #6217777 |
| 02/14/2014 | $382,642 | Sold | N/A |
| 09/05/2013 | $368,300 | Sold | N/A |
Market trends in Firestone
Last updated May 2026
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
68
9MoM
Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $3,966 |
| Assessment | $647,860 |
Home facts updated by county records
Comparable Sales for 6446 Union Avenue
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.03 | Single-Family Home | $625,000 | 12/03/25 | 4 | 2.5 | 3,888 | |
0.15 | Single-Family Home | $617,500 | 02/27/26 | 4 | 2.5 | 4,434 | |
0.13 | Single-Family Home | $570,000 | 10/24/25 | 4 | 2.5 | 4,129 | |
0.13 | Single-Family Home | $565,000 | 09/08/25 | 4 | 2.5 | 4,122 | |
0.07 | Single-Family Home | $578,000 | 10/10/25 | 3 | 2.5 | 3,962 | |
0.08 | Single-Family Home | $575,000 | 11/26/25 | 3 | 2.5 | 3,327 | |
0.25 | Single-Family Home | $646,150 | 06/04/26 | 4 | 2.5 | 3,907 | |
0.17 | Single-Family Home | $520,000 | 03/10/26 | 4 | 2.5 | 2,349 | |
0.35 | Single-Family Home | $618,866 | 12/29/25 | 4 | 4 | 4,072 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for 6446 Union Avenue.
What Locals Say about Firestone
At least 69 Trulia users voted on each feature.
98 % Say it's dog friendly
93 % Say parking is easy
92 % Say there are sidewalks
90 % Say yards are well-kept
88 % Say car is needed
86 % Say people would walk alone at night
85 % Say kids play outside
81 % Say there's holiday spirit
80 % Say streets are well-lit
78 % Say it's walkable to grocery stores
75 % Say it's quiet
61 % Say neighbors are friendly
59 % Say they plan to stay for at least 5 years
50 % Say there's wildlife
46 % Say there are community events
44 % Say it's walkable to restaurants
Sourced by Trulia users. Learn more about our methodology.
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