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800 Kalmia Avenue, Boulder, CO – $5,300,000

  • 4 Beds
  • 6 Baths
  • 3,982 Sqft
  • .47 Acres
  • 4 Beds
  • 6 Baths
  • 3,982 Sqft
  • .47 Acres

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800 Kalmia Avenue

Tucked behind mature trees on one of North Boulder's most private streets, 800 Kalmia Avenue sits on a half-acre lot and is a newly transformed modern retreat that blends warmth, precision, and timeless design. Reimagined in 2024, the home showcases refined materials, elevated finishes, and foothill views throughout. A welcoming entry with custom built-ins and hidden storage sets the tone for the craftsmanship inside. At the center, a light-filled great room features wide-plank white oak floors with radiant heat, a paneled fireplace, skylights, and full-height glass doors that open to the outdoors. The chef's kitchen includes a Bluestar range, Thermador refrigeration, a marble-topped island, and unlacquered brass hardware. A walk-through butler's pantry adds prep and storage with an ice maker, beverage drawers, and wine storage. From the kitchen, a Dutch door and sliders connect to the backyard, where curated landscaping, a flat lawn, and foothill views create a private sanctuary. Flexible main-level spaces include a family room with built-ins, a stylish powder room with marble sink, and a guest suite that adjoins a versatile office, music room, or den. Upstairs, a landing leads to three en suite bedrooms. The vaulted primary suite captures southern light and mountain views. Its spa-like bathroom offers a soaking tub, steam shower, dual marble vanity, bidet toilet, and walk-in closet. Two additional bedrooms feature custom details such as Zellige tilework, bespoke vanities, and built-in bunk beds. The newly constructed detached three-car garage doubles as a multifunctional extension with a recreation room, kitchenette, laundry and gear-washing area. A stone patio just off the kitchen is plumbed for an outdoor fireplace, perfect for evenings under the stars. Set in a quiet enclave minutes from North Boulder's trailheads, parks, and shopping, 800 Kalmia Avenue offers refined living with privacy, versatility, and enduring design.

Listing Office: Compass - Boulder

Essential Information

  • MLS® #IR1041862
  • Price$5,300,000
  • Bedrooms4
  • Bathrooms6.00
  • Full Baths2
  • Half Baths2
  • Square Footage3,982
  • Acres0.47
  • Year Built1981
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StatusActive

Community Information

  • Address800 Kalmia Avenue
  • SubdivisionKalmia
  • CityBoulder
  • CountyBoulder
  • StateCO
  • Zip Code80304

Amenities

  • Parking Spaces3
  • ParkingOversized
  • # of Garages3
  • ViewMountain(s)

Utilities

Electricity Available, Natural Gas Available

Interior

  • HeatingRadiant
  • CoolingCentral Air
  • FireplaceYes
  • FireplacesGas, Living Room
  • StoriesTwo

Interior Features

Eat-in Kitchen, Kitchen Island, Open Floorplan, Pantry, Vaulted Ceiling(s), Walk-In Closet(s)

Appliances

Bar Fridge, Dishwasher, Disposal, Double Oven, Dryer, Microwave, Oven, Refrigerator, Washer

Exterior

  • Lot DescriptionFlood Zone, Level
  • WindowsSkylight(s)
  • RoofComposition

School Information

  • DistrictBoulder Valley RE 2
  • ElementaryFoothill
  • MiddleCentennial
  • HighBoulder

Additional Information

  • Date ListedAugust 21st, 2025
  • ZoningRES

Listing Details

  • Compass - Boulder
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Listing information last updated on September 13th, 2025 at 11:18am MDT.