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New construction
  • $5,500,000

    9578 Mountain Ridge Dr, Boulder, CO 80302

    4beds
    5,133sqft
    : 
    Residential-Detached, Residential
    Built in 2025
    2 Acres Lot
    $-- Zestimate®
    $1,071/sqft
    $292/mo HOA

    What's special

    Roaring fireplacePanoramic viewsPrivate terraceSpa-inspired bathMultiple decks and terracesCustom dressing roomFloor-to-ceiling glass
    A Mountain Modern Masterpiece in the Heart of Boulder's Front Range, to be completed by the end of 2025! Perched above the clouds in the exclusive and very private Mountain Ridge gated community, this contemporary mountain estate redefines elevated living. 5,133 square feet of exquisite design and luxury craftsmanship, this estate seamlessly blends bold, clean lines with the natural grandeur of Boulder's Front Range legendary landscape. Framed by floor-to-ceiling glass, the panoramic views are nothing short of breathtaking-from the iconic sandstone towers of the Flatirons rising in sculptural splendor to the shimmering skyline of Denver stretching across the horizon. Every sunrise casts a golden glow across the valleys below, while city lights twinkle in the distance each evening like a sea of stars.The open-concept interior flows effortlessly between expansive living, dining, and entertaining spaces, anchored by a state-of-the-art chef's kitchen, a dramatic great room with soaring ceilings with exposed steel beams, and a roaring fireplace that merges indoor elegance with outdoor serenity, all with a Net Zero energy performance. Multiple decks and terraces invite you to breathe in the crisp mountain air, entertain beneath the alpenglow, or simply watch hawks glide on thermals over the foothills.Retreat to a primary suite designed as a personal sanctuary, complete with a spa-inspired bath, custom dressing room, and private terrace perched high above native and natural landscape of the property. Three additional ensuite bedrooms ensures there's space for every guest. Located just minutes from downtown Boulder's renowned shops, restaurants, and trailheads, this is where modern luxury meets wild beauty. Whether as a full-time residence or a seasonal escape, this home is a rare opportunity to own a piece of Colorado's most iconic terrain, with the Rocky Mountains your feet.
    245 days
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    355
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    5
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    Zillow last checked: 8 hours ago

    Listing updated: December 30, 2025 at 08:26pm

    Listed by:

    Cari Higgins 303-717-9934,

    Compass - Boulder,

    Isabel Haas 808-365-4609,

    Compass - Boulder

    Source: IRES,MLS#: 1032965MLS Logo

    Tour with a local agent

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 4
    • Bathrooms: 5
    • Full bathrooms: 4
    • 1/2 bathrooms: 1
    • Main level bedrooms: 1
    Primary bedroom
    • Area: 459
    • Dimensions: 27 x 17
    Bedroom 2
    • Area: 342
    • Dimensions: 19 x 18
    Bedroom 3
    • Area: 266
    • Dimensions: 19 x 14
    Bedroom 4
    • Area: 320
    • Dimensions: 20 x 16
    Dining room
    • Area: 588
    • Dimensions: 28 x 21
    Kitchen
    • Area: 252
    • Dimensions: 12 x 21
    Living room
    • Area: 644
    • Dimensions: 28 x 23
    Heating
    • Forced Air
    Cooling
    • Central Air
    Appliances
    • Laundry: Main Level
    Features
    • Basement: Partially Finished
    Interior area
    • Total structure area: 5,133
    • Total interior livable area: 5,133 sqft
    • Finished area above ground: 5,133
    • Finished area below ground: 0

    Property

    Parking
    • Total spaces: 3
    • Parking features: Garage - Attached
    • Attached garage spaces: 3
    • Details: Garage Type: Attached
    Features
    • Stories: 1
    • Has view: Yes
    • View description: Hills, Plains View, City
    Lot
    • Size: 2 Acres
    Details
    • Parcel number: R0109308
    • Zoning: SFR
    • Special conditions: Private Owner

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Ranch
    • Property subtype: Residential-Detached, Residential
    Materials
    • Wood/Frame
    • Roof: Composition
    Condition
    • Under Construction
    • New construction: Yes
    • Year built: 2025

    Utilities & green energy

    • Electric: Electric, PVREA
    • Gas: Natural Gas, XCEL
    • Sewer: Septic
    • Water: District Water, Left Hand Water
    • Utilities for property: Natural Gas Available, Electricity Available

    Community & HOA

    Community
    • Subdivision: Mountain Ridge
    HOA
    • Has HOA: Yes
    • Services included: Common Amenities
    • HOA fee: $3,500 annually
    Location
    • Region: Boulder

    Financial & listing details

    • Price per square foot: $1,071/sqft
    • Tax assessed value: $378,100
    • Annual tax amount: $1,934
    • Date on market: 5/2/2025
    • Cumulative days on market: 246 days
    • Listing terms: Cash,Conventional
    • Electric utility on property: Yes
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    Estimated market value

    Not available

    Estimated sales range

    Not available

    Not available

    Price history

    Price history
    DateEventPrice
    5/2/2025Listed for sale$5,500,000+633.3%$1,071/sqft
    Source: REcolorado #IR1032965 Report a problem
    1/27/2025Sold$750,000-37.2%$146/sqft
    Source: Public Record Report a problem
    7/15/2008Listing removed$1,195,000$233/sqft
    Source: Listhub #571238 Report a problem
    6/10/2008Listed for sale$1,195,000-2.4%$233/sqft
    Source: Listhub #571238 Report a problem
    6/5/2007Sold$1,225,000+25.6%$239/sqft
    Source: Public Record Report a problem

    Public tax history

    Public tax history
    YearProperty taxesTax assessment
    2025$1,959 +1.3%$23,631 +4.6%
    2024$1,934 -9.2%$22,591 -1%
    2023$2,131 +2%$22,811 +14.4%

    Find assessor info on the county website

    BuyAbility℠ payment

    Est. payment
    $31,858/mo
    Principal & interest
    $27212
    Property taxes
    $2429
    Other costs
    $2217

      Climate risks

      Neighborhood: 80302

      Nearby schools

      GreatSchools rating
      Schools provided by the listing agent
      • Elementary: Eagle Crest
      • Middle: Altona
      • High: Silver Creek

      Source: IRES. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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