503 Kalmia Avenue
Boulder, CO 80304
- 5 beds
- 4 baths
- 5,113 sqft
- ~1/2 acre lot
- $929 per sqft
- 1978 build
- – on site
Tucked behind a private, gated entrance on a lush 0.57-acre lot, this home, remodeled by renowned architect Harvey Hine, offers the pinnacle of luxury and modern design. Step through the oversized wood pivot door that leads to an open-concept great room with soaring vaulted ceilings, a dramatic fireplace, and warm maple hardwood floors. Expansive windows fill the space with natural light and offer seamless access to the rear deck, perfect for entertaining. The chef's kitchen features custom cabinetry, stone countertops, tile backsplashes, a Wolf range, and a Subzero refrigerator. A spacious walk-in pantry and waterfall island enhance functionality and elegance. A cozy library lounge area leads to a home office or fifth bedroom with direct front patio access. The primary suite is a serene retreat with a spacious bedroom, walk-in closet, and a spa-like en suite bathroom. A fully finished lower level with media room, fitness area, and guest suite provides ample space for family or visitors. The striking wood exterior, metal roof, and grand slate patio set the tone for a residence that exudes sophistication and tranquility. The expansive grounds offer tranquility with a water feature, several seating areas, stone patios, a deck, 40-50' evergreens surrounding the property, natural boulders, and lush landscaping. The home abuts a seasonal ditch with optional irrigation! Don't miss the bonus heated studio which is ideal for a gym, art studio, or office. Additional amenities include an attached two-car garage, a dramatic illuminated gated driveway, and ample extra parking. Located in Newlands, with easy access to North Boulder, downtown, hiking trails, open space, and top-rated schools, this home offers the perfect blend of luxury, privacy, and convenience. Don't miss the virtual tour and listing video.
Last checked:
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Last updated Mar 1, 2025
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MLS# IR1027404 —
This home is listed in more than one place. See it here.
The Building
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Year Built:1978
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Architectural Style:Contemporary
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Construction Materials:Stucco, Wood Frame
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Structure Type:House
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Patio And Porch Features:Deck, Patio
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Window Features:Double Pane Windows, Window Coverings
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Security Features:Smoke Detector(s)
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Roof:Metal
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Basement:true
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Levels:One
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Building Area Total:5381
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Building Area Source:Other
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Above Grade Finished Area:3329
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Below Grade Finished Area:1784
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Property Attached:false
Interior
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Interior Features:Eat-in Kitchen, Five Piece Bath, Kitchen Island, Open Floorplan, Pantry, Vaulted Ceiling(s), Walk-In Closet(s)
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Flooring:Wood
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Fireplace Features:Gas, Living Room
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Laundry Features:In Unit
Room Dimensions
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Living Area:5113
Location
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Latitude:40.03968
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Longitude:-105.28963
The Property
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Property Type:Residential
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Property Subtype:Single Family Residence
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Parcel Number:R0077871
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Possible Use:Residential
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Zoning:SFR
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Lot Features:Ditch, Flood Zone, Level, Sprinklers In Front
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Lot Size Acres:0.57
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Lot Size SqFt:24794
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Exclusions:Staging furnishings.
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Vegetation:Wooded
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Road Frontage Type:Public
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Road Surface Type:Paved
Listing Agent
- Contact info:
- Agent phone:
- (303) 522-4184
- Office phone:
- (303) 232-1111
Taxes
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Tax Year:2024
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Tax Annual Amount:28250
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Tax Legal Description:TRACT 349A 24-1N-71
Beds
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Bedrooms Total:5
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Main Level Bedrooms:4
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Basement Level Bedrooms:1
Baths
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Total Baths:4
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Full Baths:3
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Half Baths:1
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Main Level Baths:3
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Basement Level Baths:1
The Listing
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Virtual Tour URL Unbranded:https://www.zillow.com/view-imx/7a5f37b6-fcae-4795-a761-4fdca9c766da?setAttribution=mls&wl=true&initialViewType=pano&utm_source=dashboard
Heating & Cooling
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Heating:Forced Air
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Cooling:Ceiling Fan(s), Central Air
Utilities
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Utilities:Electricity Available, Natural Gas Available
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Sewer:Public Sewer
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Water Source:Public
Appliances
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Appliances:Dishwasher, Disposal, Microwave, Oven, Refrigerator
Schools
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Elementary School:Foothill
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Elementary School District:Boulder Valley RE 2
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Middle Or Junior School:Centennial
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High School:Boulder
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High School District:Boulder Valley RE 2
The Community
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Subdivision Name:Foothills
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Association:false
Parking
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Parking Total:2
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Parking Features:Oversized, RV Access/Parking
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Attached Garage:true
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Garage Spaces:2
Monthly cost estimate
Asking price
$4,750,000
| Expense | Monthly cost |
|---|---|
|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$25,434
|
| Taxes | $2,354 |
| Insurance | $1,306 |
| Utilities | $225 See report |
| Total | $29,319/mo.* |
| *This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Transit Score®
Provided by WalkScore® Inc.
Transit Score measures a location's access to public transit. It is based on nearby transit routes frequency, type of route (bus, rail, etc.), and distance to the nearest stop on the route. Transit Scores range from 0 (Minimal Transit) to 100 (Rider’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
