855 Union Ave, Boulder, CO 80304
Property image
Property image
FOR SALE
NEW CONSTRUCTION
3D VIEW

$3,100,000

  • 5 Beds
  • 5 Baths
  • 4,477 sqft

855 Union Ave, Boulder, CO 80304

North Wonderland
Est. Mortgage $18,027/mo*
Get Pre-Qualified
We estimate this home will sell faster than 83% nearby.

Home Highlights

Single-Family Home
Built in 2026
$692/sqft
2 Car Garage

Local Information

  • Map ViewExplore the area around 855 Union Ave.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

About this House

What's unique:Fully fenced yardLight-filled interiorsSerene primary suiteWalk-in pantryExpansive windowsRift-cut cabinetry
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
Last check for updates: about 7 hours ago
Listing courtesy of Deanna Franco, (720) 422-5131
milehimodern - Boulder
We estimate this home will sell faster than 83% nearby.

Home Details for 855 Union Ave

Interior Features

Interior Details
Basement: Partially Finished,Built-In Radon,Sump PumpNumber of Rooms: 10Types of Rooms: Primary Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5, Dining Room, Kitchen, Laundry, Living Room, StudyWet Bar
Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 5Number of Bathrooms (full): 2Number of Bathrooms (three quarters): 3Number of Bathrooms (main level): 1
Dimensions and Layout
Living Area: 4477 Square Feet
Appliances & Utilities
Utilities: Electricity Available, Cable Available, High Speed AvailAppliances: Electric Range, Double Oven, Dishwasher, Refrigerator, Bar Fridge, Microwave, DisposalDishwasherDisposalLaundry: Washer/Dryer HookupMicrowaveRefrigerator
Heating & Cooling
Heating: Forced Air,Heat PumpHas CoolingAir Conditioning: Central Air,Ceiling Fan(s)Has HeatingHeating Fuel: Forced Air
Fireplace & Spa
Fireplace: Electric, Living RoomHas a Fireplace
Gas & Electric
Electric: Xcel, Photovoltaics Seller OwnedGas: XcelHas Electric on Property
Windows, Doors, Floors & Walls
Flooring: Wood
Levels, Entrance, & Accessibility
Stories: 2Levels: TwoAccessibility: Main Floor Bath, Accessible BedroomFloors: Wood
View
Has a ViewView: Hills
Security
Security: Fire Sprinkler System, Fire Alarm

Exterior Features

Exterior Home Features
Roof: Composition RubberPatio / Porch: PatioFencing: Fenced, WoodExterior: Sprinkler SystemSprinkler System
Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2Other Parking: AttachedNo CarportHas a GarageHas an Attached GarageParking Spaces: 2Parking: Garage Door Opener,Attached
Frontage
Road Frontage: City StreetRoad Surface Type: AsphaltNot on Waterfront
Water & Sewer
Sewer: Public Sewer
Farm & Range
Does Not Include Irrigation Water Rights
Finished Area
Finished Area (above surface): 4032 Square Feet

Days on Market

Days on Market: 25

Property Information

Year Built
Year Built: 2026
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceArchitecture: Farmhouse,Contemporary
Building
Construction Materials: Frame, CompositionIs a New ConstructionNot Attached Property
Property Information
Usage of Home: Single FamilyNot Included in Sale: Seller's personal property + all staging items.Parcel Number: R0618277

Price & Status

Price
List Price: $3,100,000Price Per Sqft: $692

Active Status

MLS Status: Active

Location

Direction & Address
City: BoulderCommunity: Paris Sub
School Information
Elementary School: FoothillJr High / Middle School: CentennialHigh School: BoulderHigh School District: Boulder Valley Dist RE2

Agent Information

Listing Agent
Listing ID: 1070294

Building

Building Details
Builder Name: Porchfront Homes
Building Area
Building Area: 4032 Square Feet

HOA

No HOA

Lot Information

Lot Area: 7216 sqft

Offer

Listing Terms: Cash, Conventional

Energy

Energy Efficiency Features: Energy Rated

Miscellaneous

BasementMls Number: 1070294Attribution Contact: 720-422-5131Above Grade Unfinished Area: 4032Activation Date: Sat Oct 10 2026Showing Service Name: ShowingTime

Price and Tax history

DateEventPrice
Oct 10, 2026
Source: IRES as distributed by MLS GRID #1070294
Listed For Sale
$3,100,000
Jun 13, 2024
Source: REcolorado as distributed by MLS GRID #IR1008933
Sold
$1,500,000
May 7, 2024
Source: IRES as distributed by MLS GRID #1008933
PendingToActive
$1,650,000
May 7, 2024
Source: REcolorado as distributed by MLS GRID #IR1008933
Pending
$1,650,000
May 11, 2023
Source: Zillow Rentals
ListingRemoved

Neighborhood Overview

Neighborhood stats provided by third party data sources.

What Locals Say about North Wonderland

  • Azeljo
    "The Skip stops often and is quick ride to downtown pearl street mall or connect to the main bus stop which goes anywhere."
  • Azeljo
    "Great location nestled among a lake, mountains and a gorgeous park. Short walk to the grocery store, cafes."
  • Jan K.
    "I enjoy the quietness, closeness to nature, friendly neighbors. I appreciate the quality of nearby grocery store with abundance of organic food & quality meat & poultry. Several coffee shops within walking distance. Waldorf Elementary & High School, Foothills Community Park, Wonderland Lake, and City of Boulder Open Space all within a short distance. RTD, the public bus, runs about every 10 minutes from various stops on Broadway. Bus to downtown & to University of Colorado & to Denver International Airport. Northwest Boulder is a fabulous area to live in. My house has continued to increase in value. This area is strong in this economy."

Market trends in Boulder

Last updated September 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$899K
$5.42K
MoM
Sale-to-List Price
97.8%
0.4%
MoM
Price per sq ft
$494
$4
MoM
Available listings
747
22
MoM
Sourced by Trulia Market Trends

Home Value

Learn more about this home's value by checking out the value of nearby homes and how much similar homes have sold for.

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.03
Single-Family Home
$2,221,785
09/11/26
5
4
4,318
0.20
Single-Family Home
$1,500,000
07/24/26
5
3.5
3,170
0.19
Single-Family Home
$1,700,000
09/16/26
4
4
3,389
0.36
Single-Family Home
$1,820,000
07/14/26
4
4
3,794
0.33
Single-Family Home
$4,300,000
02/27/26
5
5
4,959
0.45
Single-Family Home
$2,500,000
12/15/25
4
4.5
4,805
0.48
Single-Family Home
$1,450,000
12/15/25
4
3.5
2,975
0.48
Single-Family Home
$2,085,000
07/31/26
4
4.5
3,686
0.58
Single-Family Home
$2,255,000
08/25/26
5
4.5
3,851

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
0.01
-
4
4
4,678
Off Market
0.02
$2,141,000
4
3
2,720
Off Market
0.03
$1,521,600
4
2.5
2,300
Off Market
0.03
$1,554,500
3
2
2,342
Off Market
0.03
$1,509,400
3
2
1,758
Off Market
0.03
$2,221,785
5
4
4,318
Recently Sold
0.03
$2,035,100
4
4
3,554
Off Market
0.03
$2,728,600
6
5.5
5,028
Off Market
0.03
-
-
-
-
Off Market
0.03
$2,489,800
5
4
3,046
Off Market
0.03
$2,887,000
5
4
3,018
Off Market
0.03
$1,436,800
3
2.5
2,210
Off Market
0.04
$1,633,800
4
3.5
3,000
Off Market
0.04
$2,025,100
5
4
3,404
Off Market
0.04
$1,772,200
4
3
2,018
Off Market
0.04
$1,719,000
3
2
1,440
Off Market
0.04
$2,573,200
3
1.5
1,224
Off Market
0.04
$2,140,500
4
3
3,235
Off Market
0.05
$1,985,400
5
4
3,870
Off Market
0.05
$1,670,000
4
3
2,378
Off Market

LGBTQ Local Legal Protections

Deanna Franco, milehimodern - Boulder
Agent Phone: (720) 422-5131
Based on information submitted to the MLS GRID as of 2026-11-02 12:38:19 PST. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information

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Frequently asked questions about 855 Union Ave

  • What is the estimated monthly payment for 855 Union Ave?
    Based on a $3,100,000 list price with 20% down at today's rates, the estimated monthly payment for 855 Union Ave in Boulder, CO is approximately $18,349 (about $16,905 principal & interest, $1,369 property taxes, and $75 homeowner's insurance). This is an estimate. Actual payment depends on your loan terms.
  • How does the list price for 855 Union Ave compare to homes in Boulder?
    855 Union Ave in Boulder, CO is listed at $3,100,000, about 245% above the $899K median sale price in Boulder.
  • What are the closest schools to 855 Union Ave?
    The closest schools to 855 Union Ave in Boulder, CO are Boulder High School (rated 9/10), Centennial Middle School (rated 6/10), Foothill Elementary School (rated 9/10).
  • Does 855 Union Ave have air conditioning?
    Yes, 855 Union Ave in Boulder, CO has air conditioning.
  • Does 855 Union Ave have laundry facilities?
    Yes, 855 Union Ave in Boulder, CO has laundry facilities.
  • Does 855 Union Ave have a yard?
    Yes, 855 Union Ave in Boulder, CO has a yard.
855 Union Ave, Boulder, CO 80304 is a 5 bedroom, 5 bathroom, 4,477 sqft single-family home built in 2026. 855 Union Ave is located in North Wonderland, Boulder. This property is currently available for sale and was listed by IRES as distributed by MLS GRID on Oct 9, 2026. The MLS # for this home is MLS# 1070294.