630 Northstar Court Boulder, CO ^$ 4,500,000

630 Northstar Court

^$ 4,500,000

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630 Northstar Court

Boulder, CO, 80304

^$ 4,500,000

Bedrooms5 Baths2.1 Sq 3,654

Monthly Estimate*

^$ 28,074

Listed by milehimodern - Boulder

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Single Family Home for sale in Boulder, CO

for $4,500,000 with 5 bedrooms and 2 full baths, 1 half bath. This 3,654 square foot home was built in 1976 on a lot size of 0.21.

Welcome to 630 Northstar Court, where architecture becomes sculpture and living becomes an artistic experience. Designed by Charles Haertling, Colorado's most celebrated modernist architect, this is not just a home - it's a rare, livable work of art. Virtually no other Haertling home has undergone a renovation of this caliber, with such a deep reverence for the original design while also maintaining a remarkably livable, open and functional floor plan that is also artful yet practical, supporting comfort, flow, and purpose. Originally built in 1976, this sculptural residence, shaped like twin cones, resembling a cassette tape in plan and a double teepee in elevation, is one of Haertling's most iconic creations. Each tower is anchored by a sculptural, wood-burning fireplace, defining elements that ground the soaring geometry with drama and purpose. Set against the backdrop of the foothills, the home offers remarkable Flatiron views, sitting like a sculpture in the landscape and blending geometry, nature, and light. Framed by walls of glass and grounded in organic materials, the home flows into a serene meditation room, a tranquil water feature, and a secluded private hot tub. Outdoor living is elevated with over 1,600 sq ft of decks and patios. Perhaps one of Boulder's best-kept secret enclaves with its coveted location directly across from the private community pool, pickleball/tennis and volleyball courts, and a mere 300-foot walk to access trails with the most jaw-dropping panoramic views of the Flatirons and Foothills, and only 1 mile to Lucky's Supermarket, beloved restaurants, and cafes, easily accessible from scenic bike paths. With downtown Pearl St Mall only 2.5 miles, you will enjoy an unmatched blend of peace, artistry, and convenience. Sustainable upgrades include a 4.5kW solar PV system, EV charger, in-floor radiant heat & 2 mini-splits for cooling & additional heating.

Single Family Active

Price

^$ 4,500,000

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 14,895

Style

Contemporary

Lot Size

0.21

Year Built

1976

Town/City

Boulder

County/Region

Boulder

MLS | Web ID

IR1033798

Features

Interior

Interior Amenities Five Piece Bath Open Floorplan Primary Suite Vaulted Ceiling(s) Walk-In Closet(s)

Basement Full Walk-Out Access

Flooring Tile Wood

Basement (Y/N) Y

Window Features Double Pane Windows Skylight(s) Window Coverings

Above Grade Finished Area 1809

Half Baths 1

3/4 Baths 0

Laundry Features In Unit

Total Bedrooms 5

Below Grade Finished Area 1845

Main Level Bedrooms 0

Main Level Bathrooms 1

Total Baths 3

General

Sewer Public Sewer

Heating Heat Pump Radiant

Cooling Central Air

Utilities Electricity Available Natural Gas Available

Possession Closing/DOD

Roof Metal

Appliances Dishwasher Disposal Down Draft Dryer Microwave Oven Refrigerator Washer

Zoning RL-2

HOA Fee 4770

Association Fee Includes Reserves Snow Removal Trash

Patio/Porch Features Deck Patio

Architectural Style Contemporary

Security Features Smoke Detector(s)

Construction Materials Block Metal Siding Stucco Frame

Exclusions Seller's personal property + any staging items

Year Built 1976

View Mountain(s)

Levels Three Or More

Property Subtype Single Family Residence

Tax Year 2024

Ownership Individual

Assoc Fee Paid Per Annually

County Boulder

Property Type Residential

Association Amenities Clubhouse Park Pool Tennis Court(s)

HOA Y

Subdivision Name Linden Park 1

Facing Direction North

Possible Use Residential

Full Baths 2

Status Active

Directions From Broadway head west on Linden Ave. then north on Wonderland Hill Ave and then north on Northstar Court. Property is on the other side of the loop.

High School Boulder

City Boulder

Association Name Hope Starchild

High School District Boulder Valley RE 2

Lot Size Square Feet 9074

Carport Spaces 2

Listing Terms Cash Conventional

Elementary School Foothill

Tax Annual Amount 14895

Middle/Junior High School Centennial

Concessions No

Virtual Tour https://my.matterport.com/show/?m=H4Gc9t1Nd3T

Structure Type House

Standard Status Active

Occupancy Type Owner

Elementary School District Boulder Valley RE 2

Exterior

Exterior Amenities Balcony Spa/Hot Tub

Lot Features Sprinklers In Front

Water Source Public

Total Parking 2

Building Area Total 3654

Lot Size Acres 0.21

Road Surface Type Paved

Road Frontage Type Public

Builder Model The Johnson House

Internal Only

Street Number 1 630

* Excluded Features

List By

Milehimodern - Boulder

Broker

(720) 422-5131

Phone

Affordability Calculator

$29,315

Per Month

Monthly Principal & Interest: $28,074
Monthly Property Taxes: $1,241
Monthly Home Insurance: --

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Down Payment

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Yearly 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.

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Nearby

Trends
Schools

Single family listings in Boulder, CO

Average List Price ^$2,664,768

Percent of Sale Price 41%

About Boulder, CO

102,151 Population

6% Since 2002

^$65,436 Median Income

31.88 Median Age

18% Households with Children

View more area information

Trends Information provided by ATTOM Data Solutions.

1955676 Elementary School

1955871 Middle School

Boulder High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
5/13/2025	$4,500,000		Listed Price

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630 Northstar Court, Boulder, CO, 80304 is a Single Family Home for sale at $4,500,000 with 3,654 sqft and a lot size of 0.21. 630 Northstar Court has 5 bedrooms, 2.1 baths, and was built in 1976. The property's zip code is 80304 which is in Boulder, CO

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: 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.

The data relating to real estate on this web site comes in part from the Internet Data eXchange (IDX) Program of the REcolorado. Real estate listings held by firms other than Weichert Realtors are marked with the IDX logo and detailed information about them includes the Listing Broker’s Firm Name.

The information being provided is for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Data is updated as of 12/11/2025.

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630 Northstar Court

Single Family Home for sale in Boulder, CO

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