800 Kalmia Avenue, Boulder, CO

$5,300,000

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4

Beds

6

Baths

3,982

Square feet

0.47

Acres

About 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.

Features of 800 Kalmia Avenue

MLS® # IR1041862
Price $5,300,000
Bedrooms 4
Bathrooms 6.00
Full Baths 2
Half Baths 2
Square Footage 3,982
Acres 0.47
Year Built 1981
Type Residential
Sub-Type Single Family Residence
Status Active

Community Information

Address 800 Kalmia Avenue
Subdivision Kalmia
City Boulder
County Boulder
State CO
Zip Code 80304

Amenities

Utilities Electricity Available, Natural Gas Available
Parking Spaces 3
Parking Oversized
# of Garages 3
View Mountain(s)
Is Waterfront No
Has Pool No

Interior

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
Heating Radiant
Cooling Central Air
Fireplace Yes
Fireplaces Gas, Living Room
Stories Two

Exterior

Lot Description Flood Zone, Level
Windows Skylight(s)
Roof Composition

School Information

District Boulder Valley RE 2
Elementary Foothill
Middle Centennial
High Boulder

Additional Information

Date Listed August 21st, 2025
Zoning RES
Foreclosure No
Short Sale No
RE / Bank Owned No

Listing Details

OfficeCompass - Boulder

Listing Map

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