855 Union Ave, Boulder, CO 80304
OFF MARKET

855 Union Ave
Boulder, CO 80304

North Wonderland
  • 6 Beds
  • 3.5 Baths
  • 2,328 sqft (on 0.33 acres)

$1,824,300

Trulia Estimate
as of May 19, 2026
Est. Refi. Payment $10,058/mo*
Refinance Your Home

$1,824,300

Trulia Estimate
as of May 19, 2026
Est. Refi. Payment $10,058/mo*
Refinance Your Home
6 Beds
3.5 Baths
2,328 sqft
(on 0.33 acres)

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

Perfect opportunity for developers and visionaries, prime location in North Boulder's coveted locale! Lives like two homes on one lot, the property boasts a sprawling 14,000 square-foot lot with high SUBDIVISION POTENTIAL. Nestled in a neighborhood supporting $3+ million homes, this serene oasis near Wonderland Hill Lake and Lucky's Market offers ample privacy and lush trees. Seize this chance to build your dream, develop or subdivide in this coveted neighborhood."
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources. This description is from October 21, 2025

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Heating only
HOA
None
Price/Sqft
No Info
Listed
180+ days ago

Home Details for 855 Union Ave

Interior Features

Interior Details
Basement: NoneNumber of Rooms: 2Types of Rooms: Primary Bedroom, Kitchen
Beds & Baths
Number of Bedrooms: 6Number of Bathrooms: 4Number of Bathrooms (full): 3Number of Bathrooms (half): 1Number of Bathrooms (main level): 4
Dimensions and Layout
Living Area: 2328 Square Feet
Appliances & Utilities
Utilities: Natural Gas Available, Electricity AvailableAppliances: No Inclusions
Heating & Cooling
Heating: Forced AirHas HeatingHeating Fuel: Forced Air
Fireplace & Spa
Fireplace: Free StandingHas a Fireplace
Gas & Electric
Electric: XcelGas: XcelHas Electric on Property
Levels, Entrance, & Accessibility
Stories: 1Levels: OneAccessibility: Accessible Approach with Ramp
View
No View

Exterior Features

Exterior Home Features
Roof: CompositionFencing: Partial
Parking & Garage
Number of Garage Spaces: 4Number of Covered Spaces: 4Other Parking: Off StreetNo CarportHas a GarageNo Attached GarageParking Spaces: 4Parking: Garage
Frontage
Not on Waterfront
Farm & Range
Does Not Include Irrigation Water Rights
Finished Area
Finished Area (above surface): 2328 Square Feet

Property Information

Year Built
Year Built: 1960
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence
Building
Construction Materials: Frame, BrickNot a New ConstructionNot Attached Property
Property Information
Condition: FixerUsage of Home: Single FamilyParcel Number: R0033825

Price & Status

Price
List Price: $1,650,000

Active Status

MLS Status: Sold

Location

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

Building

Building Area
Building Area: 2328 Square Feet

HOA

No HOA

Lot Information

Lot Area: 0.33 acres

Listing Info

Special Conditions: Private Owner

Offer

Listing Terms: Cash, Conventional, FHA

Energy

Energy Efficiency Features: Southern Exposure

Miscellaneous

Mls Number: 1008933Attribution Contact: 3035238207Above Grade Unfinished Area: 2328Activation Date: Tue May 07 2024Showing Service Name: ShowingTime
Last check for updates: about 5 hours ago
Listed by Alex Jacobson, (303) 523-8207
Compass - Boulder
Eric Jacobson, (303) 437-0221
Compass - Boulder
Bought with: Deanna Franco, (720) 422-5131, 8030 Realty
Source: IRES as distributed by MLS GRID, MLS#1008933

Price History for 855 Union Ave

DatePriceEventSource
06/13/2024$1,500,000Sold
IRES as distributed by MLS GRID #1008933
05/07/2024$1,650,000PendingToActiveIRES as distributed by MLS GRID #1008933
05/07/2024$1,650,000PendingREcolorado as distributed by MLS GRID #IR1008933
05/11/2023ListingRemovedZillow Rentals
04/28/2023$1,850Listed For RentZillow Rentals
09/19/2022ListingRemovedZillow Rental Manager
09/02/2022$1,850PriceChange
Zillow Rental Manager
08/29/2022$1,900Listed For RentZillow Rental Manager
08/17/2022ListingRemovedZillow Rental Manager
08/12/2022$1,800Listed For RentZillow Rental Manager
07/19/2021ListingRemovedZillow Rental Manager
07/16/2021$1,500Listed For RentZillow Rental Manager
02/24/2021ListingRemovedN/A
10/23/2020$1,600ListingRemovedN/A
09/25/2020$1,600PriceChange
N/A
06/21/2020$1,850PriceChange
N/A
05/01/2020$1,900Listed For RentN/A
12/03/2018$1,650ListingRemovedN/A
11/30/2018$1,650PriceChange
N/A
10/09/2018$1,750PriceChange
N/A
09/30/2018$1,800Listed For RentN/A
03/20/2017$1,650ListingRemovedN/A
02/17/2017$1,650PriceChange
N/A
01/19/2017$1,775Listed For RentN/A
03/30/2016$1,450ListingRemovedN/A
03/16/2016$1,450Listed For RentN/A
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$8,452
Assessment$1,298,900
Home facts updated by county records

Comparable Sales for 855 Union Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
725 Union Ave, Boulder, CO
0.14
Single-Family Home
$1,144,000
08/18/25
4
3
2,194
468 Locust Pl, Boulder, CO
0.25
Single-Family Home
$1,784,280
09/30/25
5
3
4,248
4156 15th St, Boulder, CO
0.49
Single-Family Home
$1,950,000
07/11/25
5
2.5
3,076
805 Union Avenue, Boulder, CO
0.07
Single-Family Home
$1,101,000
07/10/25
3
2
1,200
990 Utica Circle, Boulder, CO
0.19
Single-Family Home
$2,800,000
10/28/25
5
4.5
5,179
950 Quince Ave, Boulder, CO
0.41
Single-Family Home
$2,300,000
10/08/25
4
3.5
2,804
1540 Sumac Ave, Boulder, CO
0.50
Single-Family Home
$1,930,000
06/23/25
5
3.5
3,946
1409 Quince Ave, Boulder, CO
0.48
Single-Family Home
$1,450,000
12/15/25
4
3.5
2,975
900 Poplar Avenue, Boulder, CO
0.50
Single-Family Home
$1,350,000
06/27/25
4
2.5
3,758

Assigned Schools

These are the assigned schools for 855 Union Ave.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

North Wonderland
See Local Highlights
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."
    3
    Flag
  • Azeljo
    "Great location nestled among a lake, mountains and a gorgeous park. Short walk to the grocery store, cafes."
    0
    Flag
  • 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."
    1
    Flag

LGBTQ Local Legal Protections

Apartments for Rent

Skip to last item
Skip to first item

Explore by feature

Homes for sale near 855 Union Ave

Skip to last item
Skip to first item

Off Market Homes Near 855 Union Ave

Skip to last item
Skip to first item
Based on information submitted to the MLS GRID as of 2026-05-19 11:07:58 PDT. 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

Homes for rent near 855 Union Ave

Skip to last item
  • Results are loading
Skip to first item
855 Union Ave, Boulder, CO 80304 is a 6 bedroom, 4 bathroom, 2,328 sqft single-family home built in 1960. 855 Union Ave is located in North Wonderland, Boulder. This property is not currently available for sale. 855 Union Ave was last sold on Jun 13, 2024 for $1,500,000 (9% lower than the asking price of $1,650,000). The current Trulia Estimate for 855 Union Ave is $1,824,300.