Recently Listed Open House 10/10 2pm - 4pm
855 Union Avenue
Boulder, CO, 80304 $ 3,100,000
Bedrooms5 Baths5.0 Sq 4,032 Monthly Estimate*
$ 21,411
Listed by milehimodern - Boulder
for $3,100,000 with 5 bedrooms and 5 full baths. This 4,032 square foot home was built in 2026 on a lot size of 0.17.
OPEN HOUSE SAT 10/10 2-4PM! Striking new modern farmhouse in a coveted North Boulder location steps from Wonderland Lake, open space, trails + bike paths, with Lucky's Market, cafes, restaurants + the thriving NoBo Art District minutes away. Designed by Osmosis Architecture + built by Porchfront Homes, this 5-bedroom, 5-bath residence blends sophisticated yet inviting architecture, curated finishes + remarkable energy efficiency. Designed to achieve Net-Zero HERS performance, the home pairs high-performance construction with a 15.2 kW solar system designed to offset annual energy consumption + a garage with a 220V outlet for EV charging. Compare the possibilities: distinctive architecture, generous finished square footage + an established neighborhood setting without the disruption of ongoing construction, all at a compelling price per square foot relative to nearby luxury new homes. Soaring ceilings, expansive windows + wide-plank oak floors create light-filled interiors with an effortless flow between living, dining + entertaining spaces. A dramatic fireplace anchors the great room, while the chef's kitchen features rift-cut cabinetry, contrasting black island, waterfall-edge Calacatta quartz, champagne bronze accents + Thermador appliances including a 36" induction range. Walk-in pantry + mudroom w/custom built-ins add everyday functionality. A dedicated main-floor office with adjacent 3/4 bath provides flexibility. Upstairs, 3 bedrooms + 3 baths include a serene primary suite with generous custom walk-in closet + spa-inspired bath w/soaking tub + oversized shower. A versatile loft offers additional space for lounging or working from home. Convenient upper lvl laundry room w/folding counter + cabinetry. The finished lower level offers generous space for entertaining + guests, w/expansive rec room, wet bar w/full-size frig + dishwasher, 2 bedrooms + 3/4 bath. An additional 445 SF of storage adds versatility. Fully landscaped grounds with irrigation + fenced yard.
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Open House
10/10/2026 2:00 PM - 4:00 PM
855 Union Avenue Boulder, CO
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm
Single Family ActiveContemporary,Rustic Contemporary
FeaturesGeneralLiving Area 4032
Sewer Public Sewer
Heating Forced Air Heat Pump
Cooling Ceiling Fan(s) Central Air
Utilities Cable Available Electricity Available Internet Access (Wired)
Roof Composition Membrane
Appliances Bar Fridge Dishwasher Disposal Double Oven Microwave Oven Refrigerator
Zoning RES
Garage Spaces 2
Patio/Porch Features Patio
Architectural Style Contemporary Rustic Contemporary
Construction Materials Wood Frame
Year Built 2026
View Mountain(s)
Levels Two
Property Subtype Single Family Residence
Parcel Number R0618277
County Boulder
Property Type Residential
HOA N
Attached Garage Y
Subdivision Name Paris Sub
Facing Direction North
Possible Use Residential
Full Baths 2
High School Boulder
City Boulder
Senior Community Y/N N
High School District Boulder Valley RE 2
Lot Size Square Feet 7216
Elementary School Foothill
Property Attached Y/N N
Tax Annual Amount 0
Middle/Junior High School Centennial
Standard Status Active
Elementary School District Boulder Valley RE 2
Freehold IDX
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InteriorInterior Amenities Five Piece Bath Kitchen Island Open Floorplan Pantry Radon Mitigation System Vaulted Ceiling(s) Walk-In Closet(s) Wet Bar
Basement Sump Pump
Flooring Tile Wood
Fireplace Features Electric Living Room
Half Baths 0
3/4 Baths 3
Laundry Features In Unit
Total Bedrooms 5
Total Baths 5
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ExteriorFencing Fenced
Lot Features Sprinklers In Front
Water Source Public
Lot Size Acres 0.17
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* Excluded FeaturesList ByMilehimodern - BoulderBroker
Affordability Calculator
- Monthly Principal & Interest
- $21,411
- Monthly Property Taxes
- --
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 7.375% 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.
Learn more about how to save NearbySingle family listings in Boulder, CO
Average List Price $2,202,057
Percent of Sale Price 29%
About Boulder, CO 102,151 Population
6% Since 2002
$ 65,436 Median Income
31.88 Median Age
18% Households with Children
Trends Information provided by ATTOM Data Solutions.
1955676 Elementary School
1955871 Middle School
Boulder High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 10/9/2026 | $3,100,000 | -4.79% | Price Down |
| 10/9/2026 | $3,256,000 | | Listed Price |