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  • $5,300,000

    800 Kalmia Ave, Boulder, CO 80304

    4beds
    3,982sqft
    : 
    Residential-Detached, Residential
    Built in 1981
    0.47 Acres Lot
    $-- Zestimate®
    $1,331/sqft
    $-- HOA

    What's special

    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.
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    Zillow last checked: 7 hours ago

    Listing updated: 21 hours ago

    Listed by:

    The Zach Zeldner Team 720-480-7650,

    Compass - Boulder,

    Zachary Zeldner 720-480-7650,

    Compass - Boulder

    Source: IRES,MLS#: 1041862MLS Logo
    Travel times

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 4
    • Bathrooms: 6
    • Full bathrooms: 2
    • 3/4 bathrooms: 2
    • 1/2 bathrooms: 2
    • Main level bedrooms: 1
    Primary bedroom
    • Area: 260
    • Dimensions: 20 x 13
    Bedroom 2
    • Area: 156
    • Dimensions: 13 x 12
    Bedroom 3
    • Area: 168
    • Dimensions: 14 x 12
    Bedroom 4
    • Area: 132
    • Dimensions: 11 x 12
    Kitchen
    • Area: 180
    • Dimensions: 20 x 9
    Living room
    • Area: 483
    • Dimensions: 23 x 21
    Heating
    • Radiant
    Cooling
    • Central Air
    Appliances
    • Included: Gas Range/Oven, Double Oven, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Microwave, Disposal
    • Laundry: Sink, Upper Level
    Features
    • Study Area, Eat-in Kitchen, Cathedral/Vaulted Ceilings, Open Floorplan, Pantry, Walk-In Closet(s), Kitchen Island, Steam Shower, Open Floor Plan, Walk-in Closet
    • Flooring: Wood, Wood Floors, Tile
    • Windows: Wood Frames, Skylight(s), Wood Windows, Skylights
    • Basement: None
    • Has fireplace: Yes
    • Fireplace features: Gas, Living Room
    Interior area
    • Total structure area: 3,982
    • Total interior livable area: 3,982 sqft
    • Finished area above ground: 3,982
    • Finished area below ground: 0
    Video & virtual tour

    Property

    Parking
    • Total spaces: 3
    • Parking features: Oversized
    • Garage spaces: 3
    • Details: Garage Type: Detached
    Features
    • Levels: Two
    • Stories: 2
    • Patio & porch: Patio
    • Fencing: Partial,Wood
    • Has view: Yes
    • View description: Hills
    Lot
    • Size: 0.47 Acres
    • Features: Wooded, Level
    Details
    • Parcel number: R0071653
    • Zoning: RES
    • Special conditions: Private Owner

    Construction

    Type & style
    • Home type: SingleFamily
    • Property subtype: Residential-Detached, Residential
    Materials
    • Wood Siding, Painted/Stained
    • Roof: Composition
    Condition
    • Not New, Previously Owned
    • New construction: No
    • Year built: 1981

    Utilities & green energy

    • Electric: Electric, XCEL
    • Gas: Natural Gas, XCEL
    • Sewer: City Sewer
    • Water: City Water, City of Boulder
    • Utilities for property: Natural Gas Available, Electricity Available
    Green energy
    • Energy generation: Solar PV Owned

    Community & HOA

    Community
    • Subdivision: Kalmia
    HOA
    • Has HOA: No
    Location
    • Region: Boulder

    Financial & listing details

    • Price per square foot: $1,331/sqft
    • Tax assessed value: $2,524,400
    • Annual tax amount: $14,540
    • Date on market: 8/20/2025
    • Listing terms: Cash,Conventional
    • Exclusions: Seller's Personal Property.
    • Electric utility on property: Yes
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