Check Availability
$3,900,000
↓ $375K (8.8%)
● House - For Sale

770 6th St

Boulder, CO 80302
bedrooms
4 Beds
bathrooms
3 Baths, 1 Half Bath
square feet
3,871 Ft²
$20,818
Est. Monthly

About This Property

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,
Unit Size
3,871 Ft²
Days on Market
-
Land Size
0.34 acres
Price per sqft
$1,007
Property Type
House
Property Taxes
$1,668
HOA Dues
-
Year Built
1978

Listed By

John McElveen
milehimodern - Boulder

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Last updated: 21 days ago (IRES MLS #IRE1059851)

Price History

Date / Event Date Event Price
Aug 23, 2026 Price Decreased $3,900,000
↓ $375K (8.8%)
Price Decreased
Jun 26, 2026 Price Decreased $4,275,000
↓ $475K (10%)
Price Decreased
May 22, 2026 Listed $4,750,000
Listed

Property Highlights

Garage
Fireplace
With View
Parking Details
Has Garage
Parking Features: Attached
Garage Spaces: 2
Interior Details
Half Bathrooms: 1
Full Bathrooms: 3
Interior Features: Eat-in Kitchen, Open Floorplan, Pantry, Kitchen Island, High Ceilings, Separate Dining Room, Washer/Dryer Hookup, Sun Room
Appliances: Electric Range, Self Cleaning Oven, Oven, Double Oven, Washer, Dryer, Disposal, Fire Alarm
Flooring Type: Wood
Has Fireplace
Fireplace Features: Living Room
Basement: Partially Finished
Exterior Details
Square Footage: 3871
Square Footage Source: $0
Architectural Style: Contemporary
Year Built: 1978
Levels: Two
Construction Materials: Stucco
Patio and Porch Features: Patio, Deck
Lot Features: Paved, House Faces West, Gutters, Sidewalks, Street Light, Alley, Fire Hydrant within 500 Feet
Lot Size Area: 14810.4
Lot Size Units: Square Feet
Lot Size Acres: 0.34
Lot Size Square Feet: 14810.4
Water Source: Public
Financial Details
Tax Annual Amount: $20,019
Utilities Details
Cooling Type: Ceiling Fan(s)
Heating Type: Forced Air
Sewer : Public Sewer

Building Info

Overview

    General

  • Year Built: 1978
  • Effective Year Built: 2000
  • Building Count: 1
  • Total Rooms: 10
  • Bedroom Count: 4
  • Bathroom Count: 3
  • Full Bathrooms: 2
  • Partial Bathrooms: 3
  • Building Condition: 7
  • Building Quality: 4
  • Construction Type: 6
  • Building Style: 2
  • Exterior Walls Type: 23
  • Interior Walls Type: 3
  • Roof Shape Type: 0
  • Roof Cover Type: 14
  • Floor Count: 200
  • Living Units: 1
  • Floor Cover: 0
  • Basement Type: 3
  • Basement Area: 1,058
  • Garage Type: 1
  • Garage Square Area: 340
  • Parking Space Count: 1
  • Patio Type: 0
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 15,026
  • Total Building Area: 4,211
  • Gross Building Area: 4,211
  • Building Area: 3,871
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 13
  • Heated Square Feet: 3,871
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: CHAUTAUQUA HEIGHTS - BO
  • Land Acres: 0000000345
  • Standard Land Use Code: 1001
  • County Land Use Code: 1112
  • Legal Description 1: LOTS 39-42 INC BLK 7 CHAUTAUQUA HEIGHTS

Neighborhood

  • School District Name: Boulder Valley School District RE-2
  • Census Tract: 012201

Geography

  • Assessors Map Reference: B17-J
  • Account Number: R0006623
  • Parcel: R0006623
  • Block: 7
  • Lot: 39
  • Meridian: SEC 36 TWN 1N RNG 71
  • Municipality: BOULDER
  • Latitude: 40.0013
  • Longitude: -105.286

    Address

  • Full Address: 770 6th St
  • Address - House Number: 770
  • Address - Street Name: 6th
  • Address - Suffix Type: St
  • State: CO
  • City Name: Boulder
  • Carrier Code: C040
  • 4-Digit Zip Code: 7417
  • Zip Code: 80302

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $1,785,126
  • Tax Rate Code Area: 00-010

    Appraisal Valuation

  • Standard Deviation: 0.1655
  • Valuation Date: Jun 21, 2023
  • Confidence Score: 79
  • Final Value: 3,568,411
  • High Value: 4,159,245
  • Low Value: 2,977,576

    Market Valuation

  • Market Total Value: $3,419,700
  • Market Land Value: $2,099,300
  • Market Improvement Value: $1,320,400

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $231,343
  • Assessed Land Value: $142,018
  • Assessed Improvements Value: $89,325

    Sales

  • Current Sale Contract Date: Jul 25, 1990
  • Current Sale Recording Date: Jul 25, 1990
  • Current Sale Document Type: 27
  • Current Sale Input Document Number: 1054361
  • Previous Sale Recording Date: Mar 02, 1978
  • Previous Sale Contract Date: Mar 02, 1978
  • Previous Sale Document Type: 27
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Central Boulder


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Frequently Asked Questions

When was property at 770 6th Street built and last sold?
The property at 770 6th Street was built in 1978 and last sold on Jul 25, 1990 for $0.
How much is this home worth?
The estimated value of the home located at 770 6th Street is $3,902,516.
What are some comparable homes to 770 6th Street?
There are currently no comparable homes to 770 6th Street.