Offered for the first time in its history, this architecturally iconic Lower Chautauqua residence is a rare fusion of art, design and nature set just one block from the Chautauqua Meadow. Built in 1978, expanded and updated in 2007, and inspired by the timeless modernism of Mies van der Rohe and the bold color sensibilities of Luis Barragan, this home remains strikingly ahead of its time. Floor-to-ceiling windows and sliding glass doors create a seamless dialogue between the open-concept interiors and the surrounding landscape of towering pines, rock gardens and mature water-wise landscaping across a remarkable 15,000-square-foot lot. The dramatic living room is anchored by custom wood-paneled ceilings, a sculptural concrete fireplace and west-facing patio access beneath old-growth trees. The kitchen features two islands and opens to a rock garden and views to the north. A serene upper-level primary suite captures breathtaking Flatirons and Flagstaff Mountain views from a private deck, while additional bedrooms, a lower-level guest retreat and an atrium-style studio rec room provide exceptional versatility. A bonsai rock garden borders the property from the sidewalk and provides privacy from the street. Completing the property is an alley-accessed two-car garage in one of Boulder's most coveted settings.this is an amazing home,
For sale
Price cut: $475K (6/24)
$4,275,000
770 6th St, Boulder, CO 80302
4beds
3,871sqft
Single Family Residence
Built in 1978
0.34 Acres Lot
$-- Zestimate®
$1,104/sqft
$-- HOA
What's special
Alley-accessed two-car garageOpen-concept interiorsAtrium-style studio rec roomSerene upper-level primary suiteCustom wood-paneled ceilingsLower-level guest retreatSliding glass doors
- 38 days |
- 880 |
- 35 |
Zillow last checked:
Listing updated:
Listed by:
John McElveen 303-818-7500,
milehimodern - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1059851
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
- Main level bathrooms: 2
Primary bedroom
- Description: Hardwood
- Features: Full Primary Bath
- Level: Upper
- Area: 624 Square Feet
- Dimensions: 24 x 26
Bedroom 2
- Description: Hardwood
- Level: Main
- Area: 198 Square Feet
- Dimensions: 18 x 11
Bedroom 3
- Description: Hardwood
- Level: Main
- Area: 135 Square Feet
- Dimensions: 15 x 9
Bedroom 4
- Description: Carpet
- Level: Lower
- Area: 176 Square Feet
- Dimensions: 16 x 11
Dining room
- Description: Hardwood
- Level: Main
Kitchen
- Description: Hardwood
- Level: Main
- Area: 342 Square Feet
- Dimensions: 18 x 19
Laundry
- Description: Tile
- Level: Upper
- Area: 15 Square Feet
- Dimensions: 5 x 3
Living room
- Description: Hardwood
- Level: Main
- Area: 396 Square Feet
- Dimensions: 18 x 22
Recreation room
- Description: Carpet
- Area: 648 Square Feet
- Dimensions: 18 x 36
Heating
- Forced Air
Cooling
- Ceiling Fan(s)
Appliances
- Included: Electric Range, Self Cleaning Oven, Oven, Double Oven, Washer, Dryer, Disposal
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen, Separate Dining Room, Open Floorplan, Pantry, Kitchen Island, High Ceilings, Sun Room
- Flooring: Wood
- Basement: Partially Finished
- Has fireplace: Yes
- Fireplace features: Living Room
Interior area
- Total structure area: 2,813
- Total interior livable area: 3,871 sqft
- Finished area above ground: 2,813
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Attached
- Attached garage spaces: 2
- Details: Attached
Accessibility
- Accessibility features: Main Floor Bath, Accessible Bedroom
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio, Deck
- Exterior features: Balcony
- Fencing: Partial
- Has view: Yes
- View description: Hills
Lot
- Size: 0.34 Acres
- Features: Paved, Curbs, Gutters, Sidewalks, Street Light, Alley, Fire Hydrant within 500 Feet
Details
- Parcel number: R0006623
- Zoning: RES
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Single Family Residence
Materials
- Stucco
- Roof: Other
Condition
- New construction: No
- Year built: 1978
Utilities & green energy
- Electric: Xcel
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: Southern Exposure, Windows
Community & HOA
Community
- Security: Fire Alarm
- Subdivision: Chautauqua Heights
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $1,104/sqft
- Tax assessed value: $3,459,200
- Annual tax amount: $20,019
- Date on market: 5/22/2026
- Listing terms: Cash,Conventional
- Exclusions: Seller's personal property + all staging items
- Electric utility on property: Yes
- Road surface type: Asphalt
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/24/2026 | Price change | $4,275,000-10%$1,104/sqft |
Source:  IRES as distributed by MLS GRID #1059851 Report a problem | ||
| 5/26/2026 | Listed for sale | $4,750,000$1,227/sqft |
Source: IRES as distributed by MLS GRID #1059851 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $19,223 +1.8% | $216,200 -5.6% |
| 2024 | $18,890 +5.8% | $229,120 -1% |
| 2023 | $17,851 +4.9% | $231,343 +16.1% |
| 2022 | $17,022 +20.9% | $199,180 -2.8% |
| 2021 | $14,086 | $204,912 +21.3% |
| 2020 | $14,086 +11.6% | $168,969 |
| 2019 | $12,617 | $168,969 +10.6% |
| 2018 | $12,617 | $152,726 -9.5% |
| 2017 | $12,617 +16.3% | $168,847 +26.7% |
| 2016 | $10,851 +5.6% | $133,314 +23.4% |
| 2015 | $10,276 +22.1% | $108,009 |
| 2014 | $8,412 +3.6% | $108,009 |
| 2013 | $8,122 -6.8% | $108,009 +3% |
| 2012 | $8,711 -5.6% | $104,913 |
| 2011 | $9,232 +7.1% | -- |
| 2010 | $8,620 +38.3% | $114,220 |
| 2009 | $6,233 +24.9% | $114,220 +7.2% |
| 2008 | $4,991 +2.5% | $106,570 +18.5% |
| 2007 | $4,871 -9.3% | $89,920 +3.1% |
| 2006 | $5,368 +13.8% | $87,240 |
| 2005 | $4,718 +0.7% | $87,240 +13% |
| 2004 | $4,685 +10% | $77,220 |
| 2003 | $4,258 +10.3% | $77,220 +26.6% |
| 2002 | $3,860 | $61,010 -90.9% |
| 2001 | -- | $666,800 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: Grant
Nearby schools
GreatSchools rating
- 6/10Flatirons Elementary SchoolGrades: K-5Distance: 0.5 mi
- 5/10Manhattan Middle School Of The Arts And AcademicsGrades: 6-8Distance: 3.1 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 0.9 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.
A local agent can set up tours, give advice and negotiate with sellers.
- Colorado
- Boulder County
- Boulder
- 80302
- Grant
- 770 6th St
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