Tucked behind the Boulder Flatirons this fully remodeled gem sits on 37+ acres surrounded by miles and miles of protected land that can never be developed or built on. If privacy, peace, and views - all with easy access to Boulder - is what you are looking for, 428 Bison is home. The studs-out remodel includes a high-end kitchen featuring Thermador appliances, radiant heat under the two new ensuite bathrooms and under the white oak floors on the main level. Luxe wool berber carpet upstairs. New windows, new electric and plumbing. This energy efficient home has a HERS rating of 61, a newer metal roof, and the composite exterior was recently painted. Outside the house you'll find new decking, new flagstone flatwork, newly rebuilt moss rock retaining walls, and professional landscaping. The 37 acres includes two historic barns from the original Walker Ranch and your own seasonal creek with private patio (on the creek), the ideal place to unwind and recharge in complete privacy. You can walk out your door and onto the Ethel Harrold trailhead that abuts the western edge of the property, or take a leisurely walk up the private road to the secret back entrance to Bear Mountain.
Sold for $1,450,000
$1,450,000
428 Bison Dr, Boulder, CO 80302
2beds
2,190sqft
Single Family Residence
Built in 1977
37 Acres Lot
$1,386,600 Zestimate®
$662/sqft
$3,616 Estimated rent
Home value
$1,386,600
$1.28M - $1.51M
$3,616/mo
Zestimate® history
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$8,452/mo
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Zillow last checked:
Listing updated:
Listed by:
Martin Anderson 720-839-5465,
Compass-Denver
Bought with:
Rochelle Leyba Cale, 100001494
8z Real Estate
Source: IRES as distributed by MLS GRID,MLS#: 1009758
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 2
- Full bathrooms: 2
- Main level bathrooms: 1
Primary bedroom
- Description: Carpet
- Features: 3/4 Primary Bath
- Level: Upper
- Area: 224 Square Feet
- Dimensions: 14 x 16
Bedroom 2
- Description: Wood
- Level: Main
- Area: 168 Square Feet
- Dimensions: 14 x 12
Dining room
- Description: Wood
- Level: Main
- Area: 120 Square Feet
- Dimensions: 12 x 10
Family room
- Description: Concrete
- Level: Lower
- Area: 243 Square Feet
- Dimensions: 9 x 27
Kitchen
- Description: Wood
- Level: Main
- Area: 140 Square Feet
- Dimensions: 10 x 14
Laundry
- Description: Concrete
- Level: Lower
- Area: 100 Square Feet
- Dimensions: 10 x 10
Living room
- Description: Wood
- Level: Main
- Area: 255 Square Feet
- Dimensions: 15 x 17
Heating
- Radiant
Cooling
- Ceiling Fan(s)
Appliances
- Included: Electric Range, Self Cleaning Oven, Dishwasher, Refrigerator, Washer, Dryer, Microwave
Features
- Cathedral Ceiling(s), Open Floorplan
- Windows: Window Coverings
- Basement: Walk-Out Access
- Has fireplace: Yes
- Fireplace features: Living Room
Interior area
- Total structure area: 1,435
- Total interior livable area: 2,190 sqft
- Finished area above ground: 1,435
Property
Parking
- Total spaces: 4
- Parking features: Garage
- Garage spaces: 4
- Details: Off Street
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio, Deck
- Exterior features: Sprinkler System
- Has view: Yes
- View description: Mountain(s), Hills, Panoramic
- Waterfront features: Stream(s)
Lot
- Size: 37 Acres
- Features: Wooded, Evergreen Trees, Deciduous Trees, Native Plants, Rock Outcropping, Abuts Public Open Space, Xeriscape
Details
- Additional structures: Storage, Outbuilding
- Parcel number: R0026554
- Zoning: F
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Single Family Residence
Materials
- Composition
- Roof: Metal
Condition
- New construction: No
- Year built: 1977
Utilities & green energy
- Electric: United Power
- Sewer: Septic Tank
- Water: Well
- Utilities for property: Electricity Available, Propane
Community & neighborhood
Location
- Region: Boulder
- Subdivision: Walker Ranch Area
Other
Other facts
- Listing terms: Cash,Conventional
- Road surface type: Gravel
Price history
| Date | Event | Price |
|---|---|---|
| 7/5/2024 | Sold | $1,450,000$662/sqft |
Source:  IRES as distributed by MLS GRID #1009758 Report a problem | ||
| 5/28/2024 | Pending sale | $1,450,000$662/sqft |
Source:  REcolorado as distributed by MLS GRID #IR1009758 Report a problem | ||
| 5/17/2024 | Listed for sale | $1,450,000+108.6%$662/sqft |
Source: IRES as distributed by MLS GRID #1009758 Report a problem | ||
| 7/17/2018 | Sold | $695,000$317/sqft |
Source: IRES as distributed by MLS GRID #853786 Report a problem | ||
| 6/23/2018 | Pending sale | $695,000$317/sqft |
Source: WK Real Estate #853786 Report a problem | ||
| 6/18/2018 | Listed for sale | $695,000$317/sqft |
Source: WK Real Estate #853786 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $6,545 +1.6% | $68,269 -8.3% |
| 2024 | $6,444 +22.6% | $74,451 -1% |
| 2023 | $5,257 +4.8% | $75,172 +39.7% |
| 2022 | $5,014 +60.1% | $53,821 -2.8% |
| 2021 | $3,132 | $55,369 +67.3% |
| 2020 | $3,132 -19.5% | $33,097 |
| 2019 | $3,892 | $33,097 -19.9% |
| 2018 | $3,892 | $41,328 -9.5% |
| 2017 | $3,892 -1.4% | $45,690 +10% |
| 2016 | $3,948 +6.3% | $41,543 -7.5% |
| 2015 | $3,715 -7.6% | $44,919 |
| 2014 | $4,022 +36% | $44,919 |
| 2013 | $2,957 +5.7% | $44,919 +34% |
| 2012 | $2,798 -8.7% | $33,511 |
| 2011 | $3,065 +6.2% | -- |
| 2010 | $2,885 +18% | $37,170 |
| 2009 | $2,445 +2.6% | $37,170 -2.1% |
| 2008 | $2,384 -7.9% | $37,960 |
| 2007 | $2,589 +3.5% | $37,960 -5.7% |
| 2006 | $2,501 +3.4% | $40,260 |
| 2005 | $2,419 +0.5% | $40,260 -2.2% |
| 2004 | $2,406 +1.7% | $41,160 |
| 2003 | $2,366 +10.4% | $41,160 +13.9% |
| 2002 | $2,142 | $36,140 -90.9% |
| 2001 | -- | $395,000 |
Find assessor info on the county website
Neighborhood: 80302
Nearby schools
GreatSchools rating
- 6/10Flatirons Elementary SchoolGrades: K-5Distance: 4.1 mi
- 5/10Manhattan Middle School Of The Arts And AcademicsGrades: 6-8Distance: 5.5 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 4.5 mi
Schools provided by the listing agent
- Elementary: Flatirons
- Middle: Manhattan
- High: Boulder
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$1,386,600
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$1,386,600
- Colorado
- Boulder County
- Boulder
- 80302
- 428 Bison Dr
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