Seller's Agent in 2026
Deanna Franco
milehimodern - Boulder
(720) 422-5131
4 in this area
63 Total Sales
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.
Last Agent to Sell the Property
milehimodern - Boulder Brokerage Phone: 3038761073 License #40012955 Listed on: 04/08/2026
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Warranty Deed | $3,200,000 | Land Title | |
| Bargain Sale Deed | -- | None Listed On Document | |
| Special Warranty Deed | $1,290,000 | Heritage Title Co | |
| Deed | -- | -- | |
| Deed | $17,000 | -- |
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Closed | $2,000,000 | New Conventional | |
| Closed | $1,032,000 | Adjustable Rate Mortgage/ARM |
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 06/10/2026 06/10/26 | Sold | $3,200,000 | -2.9% | $876 / Sq Ft | |
| 04/08/2026 04/08/26 | For Sale | $3,295,000 | +155.4% | $902 / Sq Ft | |
| 05/22/2019 05/22/19 | Off Market | $1,290,000 | -- | -- | |
| 02/21/2019 02/21/19 | Sold | $1,290,000 | -7.5% | $555 / Sq Ft | View Prior Sale |
| 01/14/2019 01/14/19 | For Sale | $1,395,000 | -- | $600 / Sq Ft |
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2026 | $14,703 | $167,769 | $86,523 | $81,246 |
| 2025 | $14,703 | $167,769 | $86,523 | $81,246 |
| 2024 | $14,895 | $154,200 | $79,525 | $74,675 |
| 2023 | $14,636 | $169,483 | $86,470 | $86,698 |
| 2022 | $13,045 | $140,473 | $67,387 | $73,086 |
| 2021 | $10,821 | $125,718 | $69,326 | $56,392 |
| 2020 | $9,975 | $114,593 | $51,194 | $63,399 |
| 2019 | $6,923 | $87,924 | $51,194 | $36,730 |
| 2018 | $5,969 | $76,046 | $33,408 | $42,638 |
| 2017 | $5,782 | $84,073 | $36,934 | $47,139 |
| 2016 | $5,907 | $76,201 | $48,158 | $28,043 |
| 2015 | $5,594 | $58,904 | $22,527 | $36,377 |
| 2014 | $4,283 | $58,904 | $22,527 | $36,377 |
Seller's Agent in 2026
Deanna Franco
milehimodern - Boulder
(720) 422-5131
4 in this area
63 Total Sales
Buyer's Agent in 2026
Jill Grano
milehimodern - Boulder
(303) 945-0601
1 in this area
47 Total Sales
Seller's Agent in 2019
Tim Goodacre
milehimodern - Boulder
(303) 817-9300
78 Total Sales
Source: IRES MLS
MLS Number: IRE1055831
APN: 1461134-01-003
Ask me questions while you tour the home.