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For sale
  • $3,300,000

    421 Z Rd, Silverthorne, CO 80498

    4beds
    3,098sqft
    : 
    Single Family Residence
    Built in 2017
    1.25 Acres Lot
    $-- Zestimate®
    $1,065/sqft
    $-- HOA

    What's special

    Hot tubAwe-inspiring viewsComposite deckBlue marine granite countertopsCopper-clad exteriorSoaking tubExclusive ptarmigan neighborhood
    Perched atop the exclusive Ptarmigan neighborhood in Silverthorne, 421 Z Rd is a masterfully designed sanctuary blending cutting-edge sustainability with elevated mountain luxury. Situated on 1.25 acres—with the option to acquire an adjacent 1.25-acre parcel for a truly expansive estate—this bespoke 4-bedroom residence showcases some of Summit County’s most awe-inspiring views, spanning from Lake Dillon to the Gore Range. Every inch of this custom-built home has been meticulously curated to captivate the most discerning buyer. The striking copper-clad exterior makes a bold architectural statement, while inside, rich walnut cabinetry and one-of-a-kind Blue Marine Granite countertops—sourced by hand from Dallas, TX—set the tone for refined individuality. The chef’s kitchen is a showpiece of design and function, boasting premium appliances from Wolf, Dacor, and Miele, along with motorized cabinetry for seamless modern living. Even the dishwasher responds with a simple knock. Overhead, a custom interlocking wood ceiling and sculptural chandeliers elevate the aesthetic experience. Three expansive La Cantina floor-to-ceiling sliding glass walls disappear to reveal an unmatched indoor/outdoor lifestyle, flowing onto a composite deck complete with a hot tub overlooking the peaks. Ideal for buyers who value environmental consciousness without sacrificing comfort, the home features owned solar panels that slash utility costs by 80–90%, a cutting-edge SIPS roof, an advanced water treatment system, and a dedicated EV charging station. A greenhouse allows for year-round gardening and sustainability. In the luxurious primary suite, unwind in a spa-like steam shower or a soaking tub that dramatically fills from the ceiling. Located just minutes from world-class skiing and four-season recreation, this home is not only a residence—it’s a statement. 421 Z Rd offers a rare blend of eco-luxury, innovative design, and natural beauty, setting a new standard for Colorado mountain living.
    303 days
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    583
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    29
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    Zillow last checked: 7 hours ago

    Listing updated: March 26, 2026 at 01:30pm

    Listed by:

    Amy Nakos amy@amynakos.com,

    Your Castle Summit, LLC,

    Jennifer Luberto 201-424-9159,

    Your Castle Summit, LLC

    Source: Altitude Realtors,MLS#: S1059453MLS LogoOriginating MLS: Summit Association of Realtors

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 4
      • Full bathrooms: 1
      • 3/4 bathrooms: 1
      • 1/2 bathrooms: 2
      Bedroom
      • Level: Upper
      Bedroom
      • Level: Upper
      Bedroom
      • Level: Lower
      Bedroom
      • Level: Lower
      Dining room
      • Level: Upper
      Other
      • Level: Upper
      Other
      • Level: Lower
      Half bath
      • Level: Upper
      Kitchen
      • Level: Upper
      Laundry
      • Level: Lower
      Living room
      • Level: Upper
      Other
      • Level: Lower
      Heating
      • Radiant
      Appliances
      • Included: Built-In Oven, Double Oven, Dryer, Dishwasher, Electric Cooktop, Freezer, Disposal, Microwave, Refrigerator, Trash Compactor, Washer, Washer/Dryer
      • Laundry: In Unit, See Remarks
      Features
      • Built-in Features, Ceiling Fan(s), Five Piece Bathroom, Fireplace, High Ceilings, Kitchen Island, Primary Suite, Pantry, Quartz Counters, Skylights, Smart Thermostat, Vaulted Ceiling(s), Walk-In Closet(s)
      • Flooring: Concrete, Wood
      • Basement: None,Heated
      • Number of fireplaces: 1
      • Fireplace features: Gas
      Interior area
      • Total interior livable area: 3,098 sqft
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      Property

      Parking
      • Total spaces: 2
      • Parking features: Attached, Garage
      • Garage spaces: 2
      Features
      • Levels: Two,Multi/Split
      • Has view: Yes
      • View description: Lake, Mountain(s)
      • Has water view: Yes
      • Water view: Lake
      Lot
      • Size: 1.25 Acres
      • Features: See Remarks
      Details
      • Parcel number: 1300817
      • Zoning description: Single Family

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Materials
      • Foundation: Poured
      • Roof: Metal
      Condition
      • Resale
      • Year built: 2017

      Utilities & green energy

      • Sewer: Septic Tank
      • Water: Well
      • Utilities for property: Electricity Available, High Speed Internet Available, Propane, Septic Available
      Green energy
      • Energy efficient items: Appliances, Construction, Doors, Exposure/Shade, HVAC, Insulation, Lighting, Roof, Thermostat, Water Heater, Windows

      Community & HOA

      Community
      • Features: Trails/Paths
      • Subdivision: Government Tracts 6-5-77 Sub
      HOA
      • Has HOA: No
      Location
      • Region: Silverthorne

      Financial & listing details

      • Price per square foot: $1,065/sqft
      • Tax assessed value: $2,508,300
      • Annual tax amount: $7,626
      • Date on market: 6/13/2025
      • Exclusions: No
      • Road surface type: Dirt
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        Estimated market value

        Not available

        Estimated sales range

        Not available

        $7,891/mo

        Price history

        Price history
        DateEventPrice
        6/13/2025Listed for sale$3,300,000+746.2%$1,065/sqft
        Source: Altitude Realtors #S1059453 Report a problem
        8/26/2015Sold$390,000$126/sqft
        Source: Altitude Realtors #S391147 Report a problem

        Public tax history

        Public tax history
        YearProperty taxesTax assessment
        2025$7,626 -4.3%$156,769 +3.7%
        2024$7,965 +58%$151,125 -1%
        2023$5,042 -0.9%$152,591 +72.9%
        2022$5,086 +20.8%$88,258 -2.8%
        2021$4,210 +254.1%$90,798 +295%
        2019$1,189 -99%$22,989 -23.8%
        2017$119,600 +10780.3%$30,182 +25.1%
        2016$1,099 -8.1%$24,130
        2015$1,196 +3.2%$24,130 +1.6%
        2014$1,159 +0.3%$23,752
        2013$1,155 $23,752 -23.2%
        2012-- $30,913
        2011-- $30,913 -9.9%
        2010-- $34,326

        Find assessor info on the county website

        Monthly payment

        Est. payment
        $17,161/mo
        Principal & interest
        $16308
        Property taxes
        $853
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          Climate risks

          Neighborhood: 80498

          Nearby schools

          GreatSchools rating
          Schools provided by the listing agent
          • Elementary: Silverthorne
          • Middle: Summit
          • High: Summit

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

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