$3,100,000
- 5 Beds
- 5 Baths
- 4,477 sqft
855 Union Ave, Boulder, CO 80304
Est. Mortgage $18,027/mo*
Get Pre-QualifiedWe estimate this home will sell faster than 83% nearby.
Home Highlights
Single-Family Home
Built in 2026
$692/sqft
2 Car Garage
Local Information
-- mins to
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
Source: IRES as distributed by MLS GRID, MLS#1070294

We estimate this home will sell faster than 83% nearby.
Home Details for 855 Union Ave
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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 |
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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 |
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Days on Market: 25 |
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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 |
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Price List Price: $3,100,000Price Per Sqft: $692 |
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MLS Status: Active |
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Direction & Address City: BoulderCommunity: Paris Sub |
School Information Elementary School: FoothillJr High / Middle School: CentennialHigh School: BoulderHigh School District: Boulder Valley Dist RE2 |
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Listing Agent Listing ID: 1070294 |
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Building Details Builder Name: Porchfront Homes |
Building Area Building Area: 4032 Square Feet |
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No HOA |
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Lot Area: 7216 sqft |
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Listing Terms: Cash, Conventional |
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Energy Efficiency Features: Energy Rated |
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BasementMls Number: 1070294Attribution Contact: 720-422-5131Above Grade Unfinished Area: 4032Activation Date: Sat Oct 10 2026Showing Service Name: ShowingTime |
Price and Tax history
| Date | Event | Price |
|---|---|---|
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 | |
Apr 28, 2023 Source: Zillow Rentals | Listed For Rent | $1,850 |
Sep 19, 2022 Source: Zillow Rental Manager | ListingRemoved | |
Sep 2, 2022 Source: Zillow Rental Manager | PriceChange | $1,850 Price decreased by 3% |
Aug 29, 2022 Source: Zillow Rental Manager | Listed For Rent | $1,900 |
Aug 17, 2022 Source: Zillow Rental Manager | ListingRemoved | |
Aug 12, 2022 Source: Zillow Rental Manager | Listed For Rent | $1,800 |
Jul 19, 2021 Source: Zillow Rental Manager | ListingRemoved | |
Jul 16, 2021 Source: Zillow Rental Manager | Listed For Rent | $1,500 |
Feb 24, 2021 Source: N/A | ListingRemoved | |
Oct 23, 2020 Source: N/A | ListingRemoved | $1,600 |
Sep 25, 2020 Source: N/A | PriceChange | $1,600 Price decreased by 14% |
Jun 21, 2020 Source: N/A | PriceChange | $1,850 Price decreased by 3% |
May 1, 2020 Source: N/A | Listed For Rent | $1,900 |
Dec 3, 2018 Source: N/A | ListingRemoved | $1,650 |
Nov 30, 2018 Source: N/A | PriceChange | $1,650 Price decreased by 6% |
Oct 9, 2018 Source: N/A | PriceChange | $1,750 Price decreased by 3% |
Sep 30, 2018 Source: N/A | Listed For Rent | $1,800 |
Mar 20, 2017 Source: N/A | ListingRemoved | $1,650 |
Feb 17, 2017 Source: N/A | PriceChange | $1,650 Price decreased by 7% |
Jan 19, 2017 Source: N/A | Listed For Rent | $1,775 |
Mar 30, 2016 Source: N/A | ListingRemoved | $1,450 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $8,452 | $1,298,900 |
Home facts updated by county records
Around this home
What Locals Say about North Wonderland
Market trends in Boulder
Last updated September 2026
Avg. sale price
$899K
$5.42KMoM
Sale-to-List Price
97.8%
0.4%MoM
Price per sq ft
$494
$4MoM
Available listings
747
22MoM
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
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.

