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855 Union Ave, 
Boulder, CO 80304

$3,100,000


5

Beds


5

Baths


4,477

Sq Ft


Single Family

Active

Listed by

Deanna Franco

Milehimodern - Boulder

3038761073

Last updated:

October 10, 2026, 11:53 AM

MLS#

1070294

Source:

IRES

About This Home

855 Union Ave

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.

Home Facts

Single Family

5 Baths

5 Bedrooms

Built in 2026

Subdivision & Development:

Paris Sub

Price Summary

3,100,000

$692 per Sq. Ft.

MLS #:

1070294

Last Updated:

October 10, 2026, 11:53 AM

Added:

2 day(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

5

Bathrooms

Total Bathrooms:

5

Full Bathrooms:

2

Interior

Living Area:

4,477 Sq. Ft.


Structure

Structure

Architectural Style:

Contemporary, Farmhouse

Building Area:

4,477 Sq. Ft.

Year Built:

2026


Lot

Lot Size (Sq. Ft):

7,216


Finances & Disclosures

Finances

Price:

$3,100,000

Price per Sq. Ft:

$692 per Sq. Ft.

Source:IRES
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855 Union Ave
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Sat, Oct 10
02:00 PM - 04:00 PM

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.