630 Northstar Court
Boulder, CO 80304
- 5 beds
- 3 baths
- 3,654 sqft
- 9,074 sqft lot
- $1,231 per sqft
- 1976 build
- – on site
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 at this level with such deep reverence for Haertling's vision, preserving and in some cases completing dramatic forms while enhancing functionality. 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.
Last checked:
As a licensed real estate brokerage, Estately has access to the same database professional Realtors use: the Multiple Listing Service (or MLS). That means we can display all the properties listed by other member brokerages of the local Association of Realtors—unless the seller has requested that the listing not be published or marketed online.
The MLS is widely considered to be the most authoritative, up-to-date, accurate, and complete source of real estate for-sale in the USA.
Estately updates this data as quickly as possible and shares as much information with our users as allowed by local rules. Estately can also email you updates when new homes come on the market that match your search, change price, or go under contract.
Checking…
•
Last updated May 14, 2025
•
MLS# IR1033798 —
This home is listed in more than one place. See it here.
The Building
-
Year Built:1976
-
Builder Name:Silver Lining Builders
-
Builder Model:The Johnson House
-
Construction Materials:Block, Metal Siding, Stucco, Frame
-
Building Area Total:3654
-
Building Area Source:Assessor
-
Structure Type:House
-
Roof:Metal
-
Levels:Three Or More
-
Basement:true
-
Architectural Style:Contemporary
-
Direction Faces:North
-
Exterior Features:Balcony, Spa/Hot Tub
-
Patio And Porch Features:Deck, Patio
-
Window Features:Double Pane Windows, Skylight(s), Window Coverings
-
Security Features:Smoke Detector(s)
-
Above Grade Finished Area:1809
-
Below Grade Finished Area:1845
-
Property Attached:false
Interior
-
Interior Features:Five Piece Bath, Open Floorplan, Primary Suite, Vaulted Ceiling(s), Walk-In Closet(s)
-
Flooring:Tile, Wood
-
Laundry Features:In Unit
Room Dimensions
-
Living Area:3654
Financial & Terms
-
Ownership:Individual
-
Possession:Closing/DOD
Location
-
Latitude:40.04382
-
Longitude:-105.28865
The Property
-
Property Type:Residential
-
Property Subtype:Single Family Residence
-
Parcel Number:R0000067
-
Possible Use:Residential
-
Zoning:RL-2
-
Lot Features:Sprinklers In Front
-
Lot Size Acres:0.21
-
Lot Size SqFt:9,074 Sqft
-
Exclusions:Seller's personal property + any staging items
-
View:Mountain(s)
-
Road Frontage Type:Public
-
Road Surface Type:Paved
Listing Agent
- Contact info:
- Agent phone:
- (720) 422-5131
- Office phone:
- (303) 876-1073
Taxes
-
Tax Year:2024
-
Tax Annual Amount:$14,895
Beds
-
Bedrooms Total:5
-
Lower Level Bedrooms:5
Baths
-
Total Baths:3
-
Full Baths:2
-
Half Baths:1
-
Main Level Baths:1
-
Basement Level Baths:2
The Listing
-
Virtual Tour URL Unbranded:https://my.matterport.com/show/?m=H4Gc9t1Nd3T
Heating & Cooling
-
HVAC Description:Central Air Conditioning
-
Heating:Heat Pump, Radiant
-
Cooling:Central Air
Utilities
-
Utilities:Electricity Available, Natural Gas Available
-
Sewer:Public Sewer
-
Sewer Tap:No
-
Water Source:Public
Appliances
-
Appliances:Dishwasher, Disposal, Down Draft, Dryer, Microwave, Oven, Refrigerator, Washer
Schools
-
Elementary School:Foothill
-
Elementary School District:Boulder Valley RE 2
-
Middle Or Junior School:Centennial
-
High School:Boulder
-
High School District:Boulder Valley RE 2
The Community
-
Subdivision Name:Linden Park 1
-
Association Amenities:Clubhouse, Park, Pool, Tennis Court(s)
-
Association:true
-
Association Name:Hope Starchild
-
Association Fee:$4,770
-
Association Fee Frequency:Annually
-
Association Fee Annual:$4,770
-
Association Fee Total Annual:$4,770
-
Association Fee Includes:Reserves, Snow Removal, Trash
Parking
-
Parking Total:2
-
Carport Spaces:2
Monthly cost estimate
Asking price
$4,500,000
| Expense | Monthly cost |
|---|---|
|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$24,096
|
| Taxes | $1,241 |
| Insurance | $1,237 |
| HOA fees | $398 |
| Utilities | $193 See report |
| Total | $27,165/mo.* |
| *This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Transit Score®
Provided by WalkScore® Inc.
Transit Score measures a location's access to public transit. It is based on nearby transit routes frequency, type of route (bus, rail, etc.), and distance to the nearest stop on the route. Transit Scores range from 0 (Minimal Transit) to 100 (Rider’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
