820 Union Ave
Boulder, CO 80304
North Wonderland- 2 Beds
- 1.5 Baths
- 1,507 sqft
$1,237,900
as of Aug 23, 2026
$1,237,900
as of Aug 23, 2026
- 2 Beds
- 1.5 Baths
- 1,507 sqft
Home Highlights
Property Type
Single-Family Home
Living Area
1,507 sqft
Price/Sqft
$821
Local Information
-- mins to
About this House
This is beautiful home with spacious living and dining room. Kitchen, dining room transition to living room smoothly. Living room opens to back yard by large double door and toll windows. Back yard Brick patio is perfect for BBQ or having lunch in open space. Enjoy large back yard with Apple and peach trees.
Walk to wonderland lake, hiking trial and foothills park.
Close to North Boulder shopping center and easy access to Pearl street and down town area.
tenant reponible for utilities, trash removal and garbage collection
Walk to wonderland lake, hiking trial and foothills park.
Close to North Boulder shopping center and easy access to Pearl street and down town area.
tenant reponible for utilities, trash removal and garbage collection
820 Union Ave, Boulder, CO 80304 is a 2 bedroom, 2 bathroom, 1,507 sqft single-family home in North Wonderland. It last sold for $451,000 on Dec 20, 2004 (12,428% above the $3,600 asking price). More recently, it was listed as a rental in January 2026 with an asking price of $3,600 per month. That rental listing was removed on February 13, 2026. It is currently off market. The Trulia Estimate is $1,237,900, with a rent estimate of $3,584/month.
Home Details for 820 Union Ave
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Property Type / Style Property Type: Single Family Home |
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Lease Term: 1 YearAvailable: now |
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Appliances & Utilities DryerWasher |
Heating & Cooling Air ConditioningCooling System: Central Air |
Levels, Entrance, & Accessibility Floors: Hardwood |
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Parking & Garage Parking: Off Street Parking, On Site |
Comparable Sales for 820 Union Ave
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.12 | Single-Family Home | $1,190,000 | 10/10/25 | 3 | 2.5 | 1,336 sqft | |
0.34 | Single-Family Home | $750,000 | 03/16/26 | 3 | 2.5 | 1,196 sqft | |
0.62 | Single-Family Home | $900,000 | 03/26/26 | 2 | 2 | 1,754 sqft | |
0.68 | Single-Family Home | $289,556 | 05/26/26 | 2 | 2 | 1,102 sqft | |
0.68 | Single-Family Home | $268,744 | 04/10/26 | 2 | 2 | 1,102 sqft | |
0.76 | Single-Family Home | $505,000 | 10/31/25 | 2 | 2 | 938 sqft | |
0.25 | Single-Family Home | $212,200 | 08/12/26 | 1 | 1 | 634 sqft | |
0.55 | Single-Family Home | $1,575,000 | 04/07/26 | 3 | 2 | 1,724 sqft | |
0.35 | Single-Family Home | $1,350,000 | 06/17/26 | 3 | 4 | 2,464 sqft | |
0.64 | Single-Family Home | $850,000 | 12/30/25 | 5 | 2 | 1,720 sqft |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Around this home
What Locals Say about North Wonderland
LGBTQ Local Legal Protections
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Price and Tax history
| Date | Event | Price |
|---|---|---|
Feb 13, 2026 Source: Zillow Rentals | ListingRemoved | $3,600 |
Jan 25, 2026 Source: Zillow Rentals | Listed For Rent | $3,600 |
Jul 21, 2023 Source: Zillow Rentals | ListingRemoved | |
Jun 29, 2023 Source: Zillow Rentals | Listed For Rent | $3,500 |
Jun 15, 2022 Source: Zillow Rental Manager | ListingRemoved | |
Jun 8, 2022 Source: Zillow Rental Manager | Listed For Rent | $3,200 |
Jun 21, 2021 Source: Zillow Rental Manager | ListingRemoved | |
Jun 16, 2021 Source: Zillow Rental Manager | PriceChange | $2,950 Price decreased by 5% |
May 26, 2021 Source: Zillow Rental Manager | Listed For Rent | $3,100 |
Mar 24, 2021 Source: N/A | ListingRemoved | |
May 17, 2018 Source: N/A | ListingRemoved | $2,850 |
Apr 24, 2018 Source: N/A | PriceChange | $2,850 Price increased by 4% |
Apr 18, 2018 Source: N/A | Listed For Rent | $2,750 |
Dec 20, 2004 Source: N/A | Sold | $451,000 |
Jul 24, 2002 Source: N/A | Sold | $525,000 |
Jul 5, 2000 Source: N/A | Sold | $377,000 |
Apr 2, 1997 Source: N/A | Sold | $242,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $7,443 | $1,253,700 |
Home facts updated by county records
Frequently asked questions about 820 Union Ave
- What is 820 Union Ave estimated to be worth?Trulia's estimated value for 820 Union Ave in Boulder, CO is $1,237,900.
- What is the price history for 820 Union Ave?820 Union Ave in Boulder, CO last sold for $451,000 in December 2004.
- Is Boulder a buyer's or seller's market?Boulder is currently a balanced market, based on recent for-sale activity.
- What's the median sale price in Boulder?The median sale price in Boulder is $897K. That is up $10.37K from the prior month.
- Does 820 Union Ave have air conditioning?Yes, 820 Union Ave in Boulder, CO has air conditioning.
- Does 820 Union Ave have laundry facilities?Yes, 820 Union Ave in Boulder, CO has in-unit laundry.
Homes for rent near 820 Union Ave
Affordability
TIP:Try to keep your rent within a third of your gross household income. Learn why in our Renter's Guide.
For this property
PER YEAR
is the suggested income
Win over prospective landlords with your smart budgeting. As a good rule of thumb, ideally you would have at least three times your monthly rent in combined household income.

