2300 75th Street
Boulder, CO, 80301 $ 9,999,900
Bedrooms7 Baths7.4 Sq 17,602 Monthly Estimate*
$ 61,571
Listed by Compass - Boulder
for $9,999,900 with 7 bedrooms and 7 full baths, 4 half baths. This 17,602 square foot home was built in 1999 on a lot size of 39.58.
Situated on nearly 40 private acres surrounded by protected open space, this remarkable estate represents one of Boulder's most exceptional offerings-where architectural beauty, privacy, and an unparalleled Colorado lifestyle come together in rare harmony. Framed by unobstructed views of the Flatirons, Longs Peak, and the Continental Divide, the setting feels both breathtakingly expansive and deeply serene, offering a level of tranquility seldom found this close to town. A gated drive leads to a timeless Nantucket-inspired residence, where cedar siding, wraparound verandas, and a stately porte-cochere create an unforgettable arrival. Thoughtfully designed to balance refined elegance with everyday livability, the seven-bedroom custom home showcases exceptional craftsmanship, generous gathering spaces, an elevator, and seamless indoor-outdoor flow. A one-bedroom apartment with a separate lower-level entrance provides flexibility for guests, live-in support, or an au pair. Created for those who value land, lifestyle, and exceptional amenities, the estate offers features rarely found in Boulder, including a state-of-the-art seven-stall barn with heated wash bays and riding arena, a private pond, resort-style pool and pool house, rooftop hot tub, expansive outdoor living spaces, and a six-car garage. Tailored for equestrian enthusiasts or those seeking a grand, versatile retreat, the property is equally suited for outdoor lovers, car collectors, artists, or musicians seeking space to pursue passions without compromise. Wildlife roams the grounds, sunsets stretch across the mountains, and every vantage point reinforces the rarity of what exists here-a private sanctuary that feels worlds away, yet remains just minutes from Boulder's dining, trails, and cultural amenities. More than a home, this is a legacy estate-an extraordinary opportunity to own one of Boulder's most iconic properties.
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FeaturesInteriorInterior Amenities Eat-in Kitchen Five Piece Bath Kitchen Island Pantry Primary Suite Smart Thermostat Vaulted Ceiling(s) Walk-In Closet(s) Wet Bar
Basement Full Sump Pump Walk-Out Access
Flooring Wood
Fireplace Features Family Room Gas Living Room Primary Bedroom
Basement (Y/N) Y
Window Features Double Pane Windows Window Coverings
Above Grade Finished Area 13127
Half Baths 4
3/4 Baths 2
Laundry Features In Unit
Total Bedrooms 7
Below Grade Finished Area 3367
Main Level Bedrooms 1
Main Level Bathrooms 3
Total Baths 11
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GeneralSewer Septic Tank
Heating Baseboard Radiant
Cooling Ceiling Fan(s) Central Air
Utilities Electricity Available Natural Gas Available
Possession Closing/DOD
Roof Composition
Appliances Bar Fridge Dishwasher Disposal Double Oven Dryer Microwave Oven Refrigerator Self Cleaning Oven Trash Compactor Washer Water Softener
Zoning RR
Garage Spaces 6
Patio/Porch Features Deck Patio
Pool Features Private
Security Features Fire Sprinkler System Smoke Detector(s)
Construction Materials Cedar Stone Frame Wood Siding
Exclusions Seller's personal property artwork 3 Bronze statues on the property (2 horses and children at the fountain) Water Rights Included
Year Built 1999
View City Mountain(s) Plains Water
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Ownership Individual
Waterfront Features Pond
County Boulder
Property Type Residential
HOA N
Attached Garage Y
Subdivision Name South Central
Facing Direction West
Possible Use Residential
Full Baths 5
Status Active
High School Fairview
City Boulder
High School District Boulder Valley RE 2
Lot Size Square Feet 1724081
Listing Terms Cash Conventional
Elementary School Douglass
Tax Annual Amount 40273
Middle/Junior High School Platt
Concessions No
Virtual Tour https://www.youtube.com/watch?v=AjrkW5k9VzI&t=2s
Structure Type House
Standard Status Active
Occupancy Type Owner
Elementary School District Boulder Valley RE 2
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ExteriorExterior Amenities Balcony Gas Grill Spa/Hot Tub
Vegetation Grassed Wooded
Fencing Fenced
Parking Features Heated Garage Oversized RV Access/Parking Tandem
Lot Features Level Meadow Open Space Sprinklers In Front
Water Source Well
Total Parking 6
Building Area Total 17602
Lot Size Acres 39.58
Road Surface Type Paved
Road Frontage Type Private Road
Other Equipment Satellite Dish
Road Responsibility Private Maintained Road
Horse Y/N Y
Horse Amenities Arena Corral(s) Loafing Shed Pasture Tack Room
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* Excluded FeaturesAffordability Calculator
- Monthly Principal & Interest
- $61,571
- Monthly Property Taxes
- $3,356
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Boulder, CO
Average List Price $2,558,418
Percent of Sale Price 74%
About Boulder, CO 102,151 Population
6% Since 2002
$ 65,436 Median Income
31.88 Median Age
18% Households with Children
Trends Information provided by ATTOM Data Solutions.
1955677 Elementary School
1955681 Middle School
Fairview High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 5/28/2026 | $9,999,900 | | Listed Price |