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800 Kalmia AvenueBoulder, CO 80304

For Sale

$5,300,000

Smart Buyer Rebate $53,000

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.

Listed by The Zach Zeldner Team

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License #IRTM0284

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Compass - Boulder

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720-480-7650

Listed by Zachary Zeldner

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License #IRP12721

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Compass - Boulder

Last updated September 03, 2025

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Source: REcolorado #IR1041862

Listing Facts

  • TypeSingle-family
  • NeighborhoodJuniper - Kalmia
  • Bedrooms4
  • Bathrooms6
  • Days on Prevu17
  • Taxes$14,540/year
  • Size3,982 sqft
  • Price per sqft$1,331

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

08/22/2025
Status changed to Active
$5,300,000
08/20/2025
Listed by Compass - Boulder
$5,300,000

Property Details for 800 Kalmia Avenue

Exterior

Construction

  • Roof: Composition
  • Structure Type: House
  • Window Features: Skylight(s)
  • Year Built: 1981
  • Construction Materials: Wood Siding

Features

  • Direction Faces: West
  • Fencing: Fenced, Partial
  • Patio And Porch Features: Patio
  • View: Mountain(s)

Measurements

  • Building Area Total: 3,982
  • Lot Features: Flood Zone, Level
  • Lot Size Acres: 0.47
  • Lot Size Square Feet: 20,354

Financial

Taxes

  • Parcel Number: R0071653
  • Tax Annual Amount: $14,540.00
  • Tax Year: 2024

Interior

Features

  • Appliances: Bar Fridge, Dishwasher, Disposal, Double Oven, Dryer, Microwave, Oven, Refrigerator, Washer
  • Fireplace Features: Gas, Living Room
  • Flooring: Tile, Wood
  • Interior Features: Eat-in Kitchen, Kitchen Island, Open Floorplan, Pantry, Vaulted Ceiling(s), Walk-In Closet(s)

Measurements

  • Living Area: 3,982

Rooms

  • Bathrooms Full: 2
  • Bathrooms Half: 2
  • Bathrooms Three Quarter: 2
  • Bathrooms Total Integer: 6
  • Bedrooms Total: 4
  • Main Level Bathrooms: 2
  • Main Level Bedrooms: 1

Other

General

  • Exclusions: Seller's personal property.

Location

  • Subdivision Name: Kalmia

Parking

Parking

  • Garage Spaces: 3
  • Parking Features: Oversized
  • Parking Total: 3

Schools

Elementary School

  • Elementary School: Foothill
  • Elementary School District: Boulder Valley RE 2

High School

  • High School: Boulder
  • High School District: Boulder Valley RE 2

Middle or Junior School

  • Middle Or Junior School: Centennial

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Radiant
  • Sewer: Public Sewer
  • Utilities: Electricity Available, Natural Gas Available
  • Water Source: Public

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.