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105 W William Street, Superior, CO – $1,650,000

  • 4 Beds
  • 5 Baths
  • 2,669 Sqft
  • .16 Acres
  • 4 Beds
  • 5 Baths
  • 2,669 Sqft
  • .16 Acres

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105 W William Street

This impeccably designed Scandinavian ranch-style home, created by Unum Collective and built by Against the Grain Builders, offers the perfect blend of modern elegance and functional design in Old Town Superior. The home includes a 3-car garage with custom cabinetry and an electric vehicle charger, plus a nearly 700 sq ft ADU with vaulted ceilings, a full bath, and bar-top island, ideal for guests, rental income, or additional living space. With soaring vaulted ceilings and an open floor plan, the home is bathed in natural light through expansive windows, complemented by beautiful oak flooring throughout. The spacious primary suite features large windows, a freestanding tub, and a curbless walk-in shower for a luxurious spa experience. A dedicated office with a private exterior entrance provides a quiet space for work or meetings, while the mudroom with custom lockers ensures convenient organization. The chef’s kitchen boasts custom European-style walnut cabinetry, a paneled 30" Sub-Zero refrigerator, and premium Bosch appliances, with a large island featuring bar-top seating for casual dining. The professionally landscaped backyard offers privacy and a peaceful setting for outdoor living. A true masterpiece of Scandinavian design and craftsmanship, this home offers luxurious, move-in-ready living in one of Old Town Superior’s most sought-after locations.

Listing Office: eXp Realty, LLC

Essential Information

  • MLS® #3315759
  • Price$1,650,000
  • Bedrooms4
  • Bathrooms5.00
  • Full Baths3
  • Half Baths2
  • Square Footage2,669
  • Acres0.16
  • Year Built2025
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StyleContemporary
  • StatusActive

Community Information

  • Address105 W William Street
  • Subdivisionn/a
  • CitySuperior
  • CountyBoulder
  • StateCO
  • Zip Code80027

Amenities

  • Parking Spaces3
  • # of Garages3

Utilities

Cable Available, Electricity Connected, Internet Access (Wired), Natural Gas Connected

Parking

220 Volts, Concrete, Electric Vehicle Charging Station(s), Exterior Access Door, Heated Garage, Insulated Garage, Storage

Interior

  • HeatingForced Air
  • CoolingCentral Air
  • StoriesOne

Interior Features

Ceiling Fan(s), High Ceilings, Kitchen Island, Open Floorplan, Pantry, Walk-In Closet(s)

Appliances

Dishwasher, Disposal, Double Oven, Dryer, Freezer, Gas Water Heater, Microwave, Oven, Range, Range Hood, Refrigerator, Self Cleaning Oven, Smart Appliance(s), Sump Pump, Washer

Exterior

  • Lot DescriptionIrrigated, Landscaped
  • WindowsDouble Pane Windows
  • RoofShingle
  • FoundationConcrete Perimeter

Exterior Features

Gas Valve, Lighting, Private Yard, Rain Gutters, Smart Irrigation

School Information

  • DistrictBoulder Valley RE 2
  • ElementaryMonarch K-8
  • MiddleMonarch K-8
  • HighMonarch

Additional Information

  • Date ListedSeptember 18th, 2025

Listing Details

  • eXp Realty, LLC
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Listing information last updated on October 17th, 2025 at 4:33pm MDT.