Welcome to 630 Northstar Court, just featured in Dwell Magazine, 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.
Sold for $3,200,000
$3,200,000
630 Northstar Ct, Boulder, CO 80304
5beds
3,654sqft
Single Family Residence
Built in 1976
9,074 Square Feet Lot
$3,199,100 Zestimate®
$876/sqft
$6,314 Estimated rent
Home value
$3,199,100
$3.01M - $3.39M
$6,314/mo
Zestimate® history
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List your homeWhat's special
Remarkable flatiron viewsIn-floor radiant heatTranquil water featureSecluded private hot tubGrounded in organic materialsArtful yet practical
Zillow last checked:
Listing updated:
Listed by:
Deanna Franco 303-876-1073,
milehimodern - Boulder
Bought with:
Jill Grano, 100031566
milehimodern - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1055831
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Rooms
- Room types: Loft
Primary bedroom
- Description: Cork
- Features: Full Primary Bath, 5 Piece Primary Bath
- Level: Lower
- Area: 208 Square Feet
- Dimensions: 16 x 13
Bedroom 2
- Description: Carpet
- Level: Lower
- Area: 221 Square Feet
- Dimensions: 13 x 17
Bedroom 3
- Description: Carpet
- Level: Lower
- Area: 136 Square Feet
- Dimensions: 8 x 17
Bedroom 4
- Description: Carpet
- Level: Lower
- Area: 192 Square Feet
- Dimensions: 12 x 16
Bedroom 5
- Description: Cork
- Level: Lower
- Area: 180 Square Feet
- Dimensions: 12 x 15
Dining room
- Description: Tile
- Level: Main
- Area: 224 Square Feet
- Dimensions: 14 x 16
Family room
- Description: Carpet
- Level: Lower
- Area: 260 Square Feet
- Dimensions: 13 x 20
Great room
- Description: Tile
- Level: Main
- Area: 220 Square Feet
- Dimensions: 10 x 22
Kitchen
- Description: Tile
- Level: Main
- Area: 264 Square Feet
- Dimensions: 11 x 24
Laundry
- Description: Tile
- Level: Lower
- Area: 78 Square Feet
- Dimensions: 6 x 13
Living room
- Description: Tile
- Level: Main
- Area: 570 Square Feet
- Dimensions: 19 x 30
Recreation room
- Description: Cork
- Level: Upper
- Area: 315 Square Feet
- Dimensions: 15 x 21
Study
- Description: Cork
- Level: Upper
- Area: 315 Square Feet
- Dimensions: 15 x 21
Heating
- Heat Pump
Cooling
- Central Air
Appliances
- Included: Electric Range, Down Draft, Dishwasher, Refrigerator, Washer, Dryer, Microwave, Disposal
- Laundry: Sink, Washer/Dryer Hookup
Features
- Separate Dining Room, Cathedral Ceiling(s), Open Floorplan, Walk-In Closet(s), Two Primary Suites, High Ceilings
- Flooring: Wood
- Windows: Skylight(s), Window Coverings
- Basement: Full,Partially Finished
- Has fireplace: Yes
- Fireplace features: Two or More
Interior area
- Total structure area: 1,809
- Total interior livable area: 3,654 sqft
- Finished area above ground: 1,809
Property
Parking
- Total spaces: 2
- Parking features: Carport
- Garage spaces: 2
- Has carport: Yes
- Details: Carport
Features
- Levels: Three Or More
- Stories: 3
- Patio & porch: Patio
- Exterior features: Sprinkler System, Balcony
- Spa features: Heated
- Has view: Yes
- View description: Hills
Lot
- Size: 9,074 Square Feet
- Features: Paved
Details
- Parcel number: R0000067
- Zoning: RES
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Single Family Residence
Materials
- Frame, Block, Metal Siding, Stucco
- Roof: Metal
Condition
- New construction: No
- Year built: 1976
Details
- Builder name: Silver Lining Builders
Utilities & green energy
- Electric: Xcel, Photovoltaics Seller Owned
- 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
- Features: Clubhouse, Tennis Court(s), Pool, Park
- Security: Fire Alarm
- Subdivision: Linden Park 1
HOA
- Has HOA: Yes
- Services included: Common Amenities, Trash, Snow Removal, Management, Utilities
- HOA fee: $4,770 annually
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $876/sqft
- Tax assessed value: $2,467,200
- Annual tax amount: $14,703
- Date on market: 4/8/2026
- Listing terms: Cash,Conventional
- Exclusions: Seller's personal property + staging items.
- Electric utility on property: Yes
- Road surface type: Asphalt
Price history
| Date | Event | Price |
|---|---|---|
| 6/10/2026 | Sold | $3,200,000-2.9%$876/sqft |
Source:  IRES as distributed by MLS GRID #1055831 Report a problem | ||
| 4/20/2026 | Pending sale | $3,295,000$902/sqft |
Source:  REcolorado as distributed by MLS GRID #IR1055831 Report a problem | ||
| 4/8/2026 | Price change | $3,295,000-10.7%$902/sqft |
Source: REcolorado as distributed by MLS GRID #IR1055831 Report a problem | ||
| 12/13/2025 | Price change | $3,690,000-18%$1,010/sqft |
Source: IRES as distributed by MLS GRID #1048450 Report a problem | ||
| 5/14/2025 | Listed for sale | $4,500,000+248.8%$1,232/sqft |
Source: IRES as distributed by MLS GRID #1033798 Report a problem | ||
| 2/21/2019 | Sold | $1,290,000-7.5%$353/sqft |
Source: IRES as distributed by MLS GRID #869859 Report a problem | ||
| 1/14/2019 | Listed for sale | $1,395,000$382/sqft |
Source: Goodacre & Company #869859 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $14,895 +1.8% | $154,200 -11% |
| 2024 | $14,636 +12.2% | $173,168 -1% |
| 2023 | $13,045 +20.5% | $174,848 +24.5% |
| 2022 | $10,821 +8.5% | $140,473 +11.7% |
| 2021 | $9,975 | $125,718 +9.7% |
| 2020 | $9,975 +67.1% | $114,593 +30.3% |
| 2019 | $5,969 | $87,924 +15.6% |
| 2018 | $5,969 | $76,046 -9.5% |
| 2017 | $5,969 +1% | $84,073 +10.3% |
| 2016 | $5,907 +5.6% | $76,201 +29.4% |
| 2015 | $5,594 +30.6% | $58,904 |
| 2014 | $4,283 +3.9% | $58,904 -4.7% |
| 2013 | $4,121 -13.2% | $61,794 +8.1% |
| 2012 | $4,746 +4.1% | $57,152 |
| 2011 | $4,560 +7.1% | -- |
| 2010 | $4,258 +23.8% | $56,420 |
| 2009 | $3,438 +3.5% | $56,420 -10.3% |
| 2008 | $3,321 -4.2% | $62,890 |
| 2007 | $3,467 +3.9% | $62,890 +15.9% |
| 2006 | $3,338 +10.6% | $54,260 -6.5% |
| 2005 | $3,019 +0.7% | $58,060 +17.5% |
| 2004 | $2,998 +2.5% | $49,410 -18.3% |
| 2003 | $2,925 +10.3% | $60,510 +44.3% |
| 2002 | $2,651 | $41,920 -90.8% |
| 2001 | -- | $458,100 |
Find assessor info on the county website
Neighborhood: Wonderland Hills
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Nearby schools
GreatSchools rating
- 8/10Foothill Elementary SchoolGrades: K-5Distance: 0.6 mi
- 7/10Centennial Middle SchoolGrades: 6-8Distance: 1.1 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 2.3 mi
Schools provided by the listing agent
- Elementary: Foothill
- Middle: Centennial
- 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.
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Estimated market value
$3,199,100
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Estimated market value
$3,199,100
- Colorado
- Boulder County
- Boulder
- 80304
- Wonderland Hills
- 630 Northstar Ct
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