820 6th Street
Boulder, CO, 80302 $ 3,999,999
Bedrooms5 Baths4.1 Sq 5,043 Monthly Estimate*
$ 24,955
Listed by Slifer Smith & Frampton-Bldr
for $3,999,999 with 5 bedrooms and 4 full baths, 1 half bath. This 5,043 square foot home was built in 1990 on a lot size of 0.26.
The Flatirons shape Boulder's identity. Flagstaff defines the view. Set just beneath Flagstaff Mountain on some of the city's most prized ground, this is a home rooted in both nature and prestige. The location is unmatched. In a region ranked among the most desirable places to live in Colorado, and arguably the country, this small enclave consistently leads the way in demand, stability, and lifestyle appeal. Designed by Scott Coburn, the architecture reflects a timeless sensibility with clean lines, exceptional light, and a seamless connection to the outdoors. This is a home where proportion matters more than flash, and where well-considered spaces flow with ease. The result is a layout that invites calm, comfort, and quiet. Flagstone paths, terraced gardens, and multiple stone patios extend the living experience into the landscape. The lawn is framed by flowering crabapple trees, Japanese maples, and curated plantings, all enclosed by custom wrought-iron fencing. Morning coffee, late summer dinners, and crisp fall afternoons all find their rhythm here. Inside, the remodeled kitchen and gathering areas are fluid and welcoming, anchored by a built-in breakfast nook with cushioned wraparound seating. Upstairs, the primary suite opens to a private balcony with Flatiron glimpses in the shadow of Flagstaff. The lower level includes a media room, two additional bedrooms, a flexible space for fitness, office, or studio use, and a cool-storage room perfect for a wine collection. With solar power, mature landscaping, and strong structural integrity, the home is ready for thoughtful updates and poised to reward them. In a market where location is everything, this property offers one of the rarest advantages-enduring value in one of Colorado's most sought-after places to live. Just minutes from downtown, within Boulder's top-rated school district, and steps from miles of iconic trails, the setting speaks for itself.
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FeaturesInteriorInterior Amenities Kitchen Island Pantry Smart Thermostat Walk-In Closet(s)
Basement Full
Flooring Wood
Fireplace Features Family Room Gas Gas Log Living Room
Basement (Y/N) Y
Window Features Bay Window(s)
Above Grade Finished Area 3278
Half Baths 1
3/4 Baths 0
Laundry Features In Unit
Total Bedrooms 5
Below Grade Finished Area 1563
Main Level Bedrooms 0
Main Level Bathrooms 0
Total Baths 5
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GeneralSewer Public Sewer
Heating Forced Air
Cooling Central Air
Utilities Cable Available Electricity Available Natural Gas Available
Possession Closing/DOD
Roof Composition
Appliances Bar Fridge Dishwasher Double Oven Dryer Humidifier Microwave Refrigerator Washer
Zoning Res
Garage Spaces 2
Patio/Porch Features Deck Patio
Security Features Fire Alarm Smoke Detector(s)
Construction Materials Stone Stucco Frame
Year Built 1990
View Mountain(s)
Levels Two
Property Subtype Single Family Residence
Tax Year 2024
Ownership Individual
County Boulder
Property Type Residential
HOA N
Attached Garage Y
Subdivision Name Chautauqua Heights
Possible Use Residential
Full Baths 4
Status Active
High School Boulder
City Boulder
High School District Boulder Valley RE 2
Lot Size Square Feet 11187
Listing Terms Cash Conventional
Spa Features Bath
Elementary School Flatirons
Tax Annual Amount 22682
Middle/Junior High School Manhattan
Concessions No
Virtual Tour https://vimeo.com/928763858?share=copy&turnstile=0.UK4857XocB1chn_Au3CcF8XXymyDVq3_tMZkXzXGU7SkI_iUmHaFkfZbNHSfPKQ1kqm9TMv5qk-gVPd8pisjlGyrnHMqb3S1to_hz8oZwsakN0UwpdyeXj7970kxsmNrV-MNqD2JqpEpF5lO7WP1
Structure Type House
Standard Status Active
Occupancy Type Owner
Elementary School District Boulder Valley RE 2
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ExteriorExterior Amenities Balcony
Vegetation Wooded
Fencing Fenced
Lot Features Level Sprinklers In Front
Water Source Public
Total Parking 2
Building Area Total 5043
Lot Size Acres 0.26
Road Surface Type Alley Paved Paved
Road Frontage Type Public
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* Excluded FeaturesList BySlifer Smith & Frampton-BldrBroker
Affordability Calculator
- Monthly Principal & Interest
- $24,955
- Monthly Property Taxes
- $1,890
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.375% 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 $2,615,222
Percent of Sale Price 35%
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.
1956937 Elementary School
1957357 Middle School
Boulder High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 12/5/2025 | $3,999,999 | -6.87% | Price Down |
| 9/12/2025 | $4,295,000 | -4.45% | Price Down |
| 7/18/2025 | $4,495,000 | | Listed Price |