5-bed, 4.25-bath single-family home in Paris Sub

Active$3,100,000

MLS® Listing#1070294 · Single Family Residence · Listed Oct 8, 2026

855 Union Ave, Boulder, CO 80304

Paris Sub · Boulder County

Showing 5 of 50 photos · virtual tour online

5Beds

4.25Baths2 full, 3 three-quarter

4,032Sq Ft

2026Year built

0.17Acre lot

2Garage

Description

Striking new modern farmhouse in coveted North Boulder, steps from Wonderland Lake, open space, trails + bike paths, minutes to Lucky's Market, cafes, restaurants + thriving NoBo Art District. Designed by Osmosis Architecture + built by Porchfront Homes, this 5-bed, 5-bath residence blends sophisticated architecture, curated finishes + exceptional energy efficiency. Designed to achieve Net-Zero HERS performance, w/high-performance construction, 15.2 kW solar system designed to offset annual energy consumption + 220V garage outlet for EV charging. Compare the possibilities: distinctive architecture, generous finished SF + an established neighborhood free from ongoing construction-all at a compelling price per SF relative to nearby luxury new homes. Soaring ceilings, expansive windows + wide-plank oak floors create light-filled interiors w/effortless flow between living, dining + entertaining spaces. Dramatic fireplace anchors the great room. Chef's kitchen features rift-cut cabinetry, contrasting black island, waterfall-edge Calacatta quartz, champagne bronze accents + Thermador appliances including 36" induction range. LaCantina folding kitchen windows open to a patio bar, creating seamless indoor-outdoor living. Walk-in pantry + mudroom w/custom built-ins add everyday functionality. Main-floor office w/adjacent 3/4 bath offers flexibility. Upstairs, 3 bedrooms + 3 baths include a serene primary suite w/custom walk-in closet + spa-inspired bath featuring soaking tub + oversized steam shower. Versatile loft for lounging or working from home + convenient upper-level laundry w/folding counter + cabinetry. Finished lower lvl offers exceptional guest + entertaining space w/expansive rec room, custom wet bar w/full-size refrigerator + dishwasher, 2 bedrooms + 3/4 bath. An additional 445 SF of dedicated basement storage for gear, outdoor equipment + household & seasonal essentials. Landscaped grounds w/irrigation + fully fenced yard

Full description online — scan the code for the complete listing.

Property information

Property type: Residential
Sub-type: Single Family Residence
Year built: 2026
Living area: 4,032 Sq Ft
Lot size: 0.17 acres
Garage spaces: 2
HOA fee: None
Price / Sq Ft: $769
Days on market: 36
Parcel number: R0618277

Features

Interior: Cathedral Ceiling(s) · Open Floorplan · Pantry · Walk-In Closet(s)
Appliances: Electric Range · Double Oven · Dishwasher · Refrigerator
Cooling: Central Air · Ceiling Fan(s)
Heating: Forced Air · Heat Pump
Flooring: Wood
Parking: Garage Door Opener · Attached
Laundry: Washer Hookup
Fireplace: Electric · Living Room
Patio: Patio
Fencing: Fenced · Wood

$3,100,000List price

5Beds

4.25Baths2 full, 3 three-quarter

4,032Sq Ft

2026Year built

0.17Acre lot

2Garage

NewConstruction

5 weeks agoOn market

$3,100,000

855 Union Ave

Boulder, CO 80304

Active

Your local EXIT Realty office

EXIT Mosaic RealtyCentennial, COCall

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Description

Property Information

Property type: Residential
Sub-type: Single Family Residence
Style: Farmhouse / Contemporary
Year built: 2026
Living area: 4,032 Sq Ft
Lot size: 0.17 acres
Garage spaces: 2
Zoning: RES
Days on market: 36
MLS^® Listing#: 1070294

Property Features

Interior: Cathedral Ceiling(s) · Open Floorplan · Pantry · Walk-In Closet(s) · Wet Bar · Kitchen Island · High Speed Internet
Appliances: Electric Range · Double Oven · Dishwasher · Refrigerator · Bar Fridge · Microwave · Disposal
Cooling: Central Air · Ceiling Fan(s)
Heating: Forced Air · Heat Pump
Flooring: Wood
Fireplace: Electric · Living Room
Basement: Partially Finished · Sump Pump
Parking: Garage Door Opener · Attached
Laundry: Washer Hookup
Patio: Patio
Fencing: Fenced · Wood
Lot features: Paved
Construction: Frame
Roof: Composition · Rubber
Security: Fire Sprinkler System · Fire Alarm
Utilities: Electricity Available · Cable Available
Sewer: Public Sewer
Water source: Public

Rooms

Upper

Primary Bedroom16x15
Bedroom 213x11
Bedroom 315x12
Laundry8x8

Main

Study13x10
Dining Room16x11
Kitchen20x15
Living Room18x15

Basement

Bedroom 413x11
Bedroom 513x11

Schools

Elementary: Foothill
Middle: Centennial
High: Boulder

Financial Details

HOA: None
Parcel number: R0618277

Boulder Market Statistics

How this home compares to 1,568 active listings in Boulder, CO

	Boulder median	This listing
Median listing price	$1,049,750	$3,100,000
Median days on market	65	36
Median Sq Ft	1,999	4,032
Median price / Sq Ft	$530	$769

Market statistics compiled from active EXIT Realty® and MLS listings in Boulder, CO.

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Address	Price	Beds	Baths	Sq Ft
4888 5th St, Boulder, CO	$2,995,000	5	4.25	5,738
1090 Locust Ave, Boulder, CO	$3,305,700	5	4.25	3,729
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805 Linden Ave, Boulder, CO	$2,950,000	6	4.5	4,152

Connect with a Local Real Estate Expert

Stephan Poullier
Associate Broker
EXIT Mosaic Realty
Tasha Beckman
Broker of Record
EXIT Mosaic Realty
Nicole Robilotto
Associate Broker
EXIT Mosaic Realty
Amanda Edmondson
Associate Broker
EXIT Mosaic Realty
Marina-Jeanne Lewallen
Associate Broker
EXIT Mosaic Realty
Amy Ashby
Associate Broker
EXIT Mosaic Realty

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This publication is designed to provide information with regard to the subject matter covered. It is displayed with the understanding that the publisher and authors are not engaged in rendering real estate, legal, accounting, tax, or other professional services and that the publisher and authors are not offering such advice in this publication. If real estate, legal, or other expert assistance is required, the services of a competent, professional person should be sought.

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Description

Property Information

Property Features

Rooms

Upper

Main

Basement

Schools

Financial Details

Boulder Market Statistics

Commute Calculator

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805 Linden AveBoulder, CO 80304#1071220

855 Union AvenueBoulder, CO 80304#IR1070294

982 Locust AveBoulder, CO 80304#1688667

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Connect with a Local Real Estate Expert

Stephan Poullier

Tasha Beckman

Nicole Robilotto

Amanda Edmondson

Marina-Jeanne Lewallen

Amy Ashby

Boulder Market Statistics

More homes to consider

4888 5th StBoulder, CO 80304#1062223

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2885 Island DrBoulder, CO 80301#1064124

805 Linden AveBoulder, CO 80304#1071220

855 Union AvenueBoulder, CO 80304#IR1070294

982 Locust AveBoulder, CO 80304#1688667

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