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$3,100,000 Coming Soon

  • For Sale
  • Coming Soon
  • Single Family
  • 5 Beds
  • 2 Full Baths
  • 3 Partial Baths
  • 4,477 Sq. Ft.
  • 2 Car Garage
  • Updated 4 hours ago

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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.

Full Property Details for 855 Union Ave

General

  • Price: $3,100,000
  • Taxes: (2025)
  • Status: Coming Soon
  • Type: Single Family
  • Source: IRES
  • MLS ID: 1070294
  • Updated: 10/8/2026
  • Added to Site: 1 day(s) ago

Interior

  • Interior Features: Separate Dining Room, Cathedral Ceiling(s), Open Floorplan, Pantry, Walk-In Closet(s), Wet Bar, Washer/Dryer Hookup, Kitchen Island
  • Fireplace: Yes
  • Fireplace(s): Electric, Living Room
  • Appliances: Electric Range, Double Oven, Dishwasher, Refrigerator, Bar Fridge, Microwave, Disposal, Fire Alarm
  • Flooring: Wood

Rooms

Bathrooms

  • Total Bathrooms: 5
  • Full Bathrooms: 2
  • 3/4 Bathrooms: 3

Bedrooms

  • Total Bedrooms: 5

Additional Information

  • Security/Safety: Fire Sprinkler System

Exterior

  • Exterior Features: Sprinkler System
  • Porch/Patio/Deck: Patio

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Garage Spaces: 2
  • Parking Features: Garage Door Opener, Attached
  • Garage Description: Attached

Location

  • Area: Boulder
  • County: Boulder
  • Subdivision: Paris Sub

School Information

  • School District: Boulder Valley Dist RE2
  • Elementary School: Foothill
  • Middle School: Centennial
  • High School: Boulder

Heating & Cooling

  • Cooling Type: Central Air, Ceiling Fan(s)
  • Heating Type: Forced Air, Heat Pump

Utilities

  • Gas: Xcel
  • Sewer: Public Sewer
  • Water: Public
  • Utility Description: Electricity Available, Cable Available, High-Speed Internet Available

Structural Information

  • Architectural Style: Farmhouse, Contemporary
  • Builder: Porchfront Homes
  • Construction: Frame, Composition
  • Exterior Const.: Frame, Composition
  • Basement: Yes
  • Basement Desc.: Partially Finished, Built-In Radon, Sump Pump
  • Roof: Composition, Rubber
  • Square Feet: 4,477
  • Sq. Ft. Source: Plans
  • Living Area: 4,032 Sq. Ft.
  • Year Built: 2026

Lot Features

  • Property View: Hills
  • Lot Size (Acres): 0.17
  • Lot Size (Sq. Ft.): 7,216
  • Frontage: City Street
  • Street/Road Desc.: Asphalt
  • Fence: Yes
  • Lot Features: House Faces North, Paved, Curbs, Gutters, Sidewalks
  • Potential Use: Single-Family
  • Zoning: RES
  • Fencing (Description): Fenced, Wood

Green Features

  • Energy Efficient: Energy Rated, Photovoltaic Owned

Financial Considerations

  • Tax Year: 2025
  • Terms: Cash, Conventional

Disclosures and Reports

  • Special Conditions: Corporation
  • Exclusions: Seller's personal property + all staging items.
  • Property ID: R0618277

Listed by milehimodern - Boulder (303) 876-1073

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Listing agent

— 855 Union Ave —

  • milehimodern - Boulder

    303-876-1073

7204225131

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Price & Sales History for 855 Union Ave Get Price Alerts and Save Property

Date
Details
Price
Change
Source
10/08/2026
Listed
$3,100,000
106.67%
MLS
6/12/2024
Sold
$1,500,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 855 Union Ave

Year
Property Taxes
Change
Tax Assessment
Change
2025
$3,870
—
$39,746
-10%
2025
$3,870
-54%
$44,162
-54%
2024
$8,452
9%
$96,172
-4%
2023
$7,727
28%
$99,857
29%
2021
$6,023
-5%
$77,127
3%
2022
$6,317
5%
$74,970
9%
2021
$6,023
29%
$68,905
13%
2018
$4,657
3%
$60,912
—
2017
$4,511
7%
$60,912
7%
2016
$4,229
6%
$56,811
—
2015
$4,004
22%
$56,811
24%
2014
$3,269
-38%
$45,977
-33%
2019
$5,293
66%
$68,905
50%
2013
$3,197
—
$45,977
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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855 Union Ave, Boulder, CO 80304 (MLS# 1070294) is a Single Family property with 5 bedrooms, 2 full bathrooms and 3 partial bathrooms. 855 Union Ave is currently listed for $3,100,000 and was received on October 08, 2026. Want to learn more about 855 Union Ave? Do you have questions about finding other Single Family real estate for sale in Boulder? You can browse all Boulder real estate or contact a Coldwell Banker agent to request more information.

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