421 Z Rd Silverthorne, CO 80498
Estimated payment $18,132/month
Highlights
- Primary Bedroom Suite
- 1.25 Acre Lot
- Vaulted Ceiling
- Lake View
- Green Roof
- Wood Flooring
About This Home
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.
Listing Agent
Your Castle Summit, LLC Brokerage Email: amy@amynakos.com License #ER40042506 Listed on: 06/13/2025

Co-Listing Agent
Your Castle Summit, LLC Brokerage Email: amy@amynakos.com License #FA100093391
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $7,626
Year Built
- Built in 2017
Lot Details
- 1.25 Acre Lot
- Dirt Road
Parking
- 2 Car Attached Garage
Property Views
- Lake
- Mountain
Home Design
- Split Level Home
- Concrete Foundation
- Metal Roof
Interior Spaces
- 3,098 Sq Ft Home
- 2-Story Property
- Partially Furnished
- Built-In Features
- Vaulted Ceiling
- Ceiling Fan
- Skylights
- Gas Fireplace
- Heated Basement
- Smart Thermostat
Kitchen
- Eat-In Kitchen
- Built-In Double Oven
- Electric Cooktop
- Microwave
- Freezer
- Dishwasher
- Kitchen Island
- Quartz Countertops
- Trash Compactor
- Disposal
Flooring
- Wood
- Concrete
Bedrooms and Bathrooms
- 4 Bedrooms
- Primary Bedroom Suite
- Walk-In Closet
Laundry
- Laundry in unit
- Washer and Dryer
Eco-Friendly Details
- Green Roof
- Energy-Efficient Windows
- Energy-Efficient Exposure or Shade
- Energy-Efficient Construction
- Energy-Efficient HVAC
- Energy-Efficient Lighting
- Energy-Efficient Insulation
- Energy-Efficient Doors
- Energy-Efficient Thermostat
Schools
- Silverthorne Elementary School
- Summit Middle School
- Summit High School
Utilities
- Radiant Heating System
- Propane
- Well
- Water Heater
- Septic Tank
- Septic System
- High Speed Internet
Listing and Financial Details
- Assessor Parcel Number 1300817
Community Details
Overview
- No Home Owners Association
- Government Tracts 6 5 77 Sub Subdivision
Recreation
- Trails
Map
Home Values in the Area
Average Home Value in this Area
Tax History
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 |
---|---|---|---|---|
2024 | $7,965 | $151,125 | -- | -- |
2023 | $7,965 | $147,440 | $0 | $0 |
2022 | $5,043 | $88,258 | $0 | $0 |
2021 | $5,087 | $90,798 | $0 | $0 |
2020 | $4,210 | $80,279 | $0 | $0 |
2019 | $1,189 | $22,989 | $0 | $0 |
2018 | $2,083 | $39,034 | $0 | $0 |
2017 | $1,099 | $22,516 | $0 | $0 |
2016 | $1,196 | $24,130 | $0 | $0 |
2015 | $1,159 | $24,130 | $0 | $0 |
2014 | $1,155 | $23,752 | $0 | $0 |
2013 | -- | $23,752 | $0 | $0 |
Property History
Date | Event | Price | Change | Sq Ft Price |
---|---|---|---|---|
06/13/2025 06/13/25 | For Sale | $3,300,000 | +746.2% | $1,065 / Sq Ft |
08/26/2015 08/26/15 | Sold | $390,000 | 0.0% | $271 / Sq Ft |
07/27/2015 07/27/15 | Pending | -- | -- | -- |
03/30/2015 03/30/15 | For Sale | $390,000 | -- | $271 / Sq Ft |
Source: Summit MLS
MLS Number: S1059453

APN: 1300817
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