#IR1036514, The Bernardi Group, Listing office: Coldwell Banker Realty-Boulder

503 Kalmia Ave Boulder, CO 80304
Property details
About 503 Kalmia Ave
Open House on Saturday (6/21) from 10:30-11:30 AM. 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 main level 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, lush landscaping, and abuts a seasonal ditch. 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.
Highlights
Summary
- Partial Bathrooms: 1
- Full Bathrooms: 3
- Appliances: Gas Range, Dishwasher, Refrigerator, Microwave, Disposal
- Basement: Yes
- Flooring Type: Wood Floors
- Interior: Eat-in Kitchen, Separate Dining Room, Cathedral/Vaulted Ceilings, Open Floorplan, Pantry, Walk-In Closet(s), Kitchen Island
- Fireplace: Gas, Living Room
- Total Bedroom Count: 5
- Garage Space: 2 spaces
- Attached Garage: Yes
- Parking: Garage Door Opener, RV/Boat Parking, Oversized
- Architectural Style: Contemporary/Modern, Ranch
- Heating: Forced Air
- Cooling: Central Air, Ceiling Fan(s)
- List Price: $4,250,000
- Price/SqFt: $831
- Annual Tax Amount: $27,759
- Tax Year: 2023
- Lot: Sprinklers, Level, Stream
- Year Built: 1978
- Stories: 1
- Living Area: 5,113 SqFt
- Lot Size: 0.57 Acres
- MLS Number: 1027404
- MLS Name: IRES MLS
- Office Name: Open Real Estate
- Office Phone: (303) 522-4184
- Listing Agent: Sara Groem
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Last updated on: 6/21/2025, 3:45:29 AM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.
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$4,250,000
503 Kalmia Ave
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Price information
Property sales
Date | Event | Price |
---|---|---|
Feb 21, 2019 | Home Sold | $3,025,000 |
Jul 11, 2018 | Home Sold | $2,875,000 |
Nov 01, 2011 | Home Sold | $1,130,000 |
May 31, 2011 | Home Sold | $1,130,000 |
May 15, 2008 | Home Sold | $1,145,000 |
Jun 06, 2006 | Home Sold | $917,000 |
Tax history
Year | Assessment | Property Tax |
---|---|---|
2023 | $325,131 | $27,759 |
2022 | $223,109 | $20,718 |
2021 | $229,529 | $19,756 |
2020 | $205,563 | $17,893 |
2019 | $242,035 | $15,843 |
2018 | $182,736 | $15,347 |
2017 | $182,736 | $15,062 |
History based on county public records data.
Nearby schools
8
Foothill Elementary School
Public District KG-5
0.4 mi
•1001 Hawthorn Ave
7
Crest View Elementary School
Public District KG-5
1.2 mi
•1897 Sumac Ave
5
Columbine Elementary School
Public District PK-5
1.2 mi
•3130 Repplier St
School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.
Neighborhood
The neighbors living near this home have an average income of $116,146. The most common annual income of people living in Boulder, CO is between $35k-100k. The most common type of family is single, no kids. Most residents in this area have post secondary degree education.
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Frequently asked questions
About 503 Kalmia Ave
The listing price of 503 Kalmia Ave property is $4,250,000.
The property 503 Kalmia Ave is a house located in Boulder, Colorado, 80304.
Active Listing: 503 Kalmia Ave is For Sale (Active/New) which means the seller is accepting offers.
The nearby schools for 503 Kalmia Ave are: Foothill Elementary School (GreatSchools Rating 8/10), Crest View Elementary School (GreatSchools Rating 7/10), Columbine Elementary School (GreatSchools Rating 5/10), Centennial Middle School (GreatSchools Rating 5/10), Casey Middle School (GreatSchools Rating 3/10), Horizons K-8 School (GreatSchools Rating 8/10), Boulder High School (GreatSchools Rating 8/10), New Vista High School (GreatSchools Rating 7/10), Boulder Preparatory Charter High School (GreatSchools Rating 2/10).
According to the records, the last property tax for 2023 is $27,759 (source: MLS/based on county public records data).
The last sale was on February 21, 2019 for $3,025,000 (source: MLS/tax record).
The property at 503 Kalmia Ave has 5 bedrooms and 3 full and 1 half bathrooms.
The property 503 Kalmia Ave is 5,113 SqFt (source: MLS/tax record).
The year of construction for 503 Kalmia Ave is 1978.
This home is located at 503 Kalmia Ave in Boulder, CO and zip code 80304 in the Northwest Boulder neighborhood. This 5,113 square foot home, which was built in 1978, sits on a 0.57 acre lot. Features: 5 bedrooms, 4 bathrooms. It has been listed on Rocket Homes since February 28, 2025 and is currently priced at $4,250,000.
Over 13 listings were sold over their listed price in May 2025 in Boulder, CO. In the same period over 121 listings were sold below the listed price and 41 listings were sold for the listed price. In May 2025 in Boulder, CO there were 21.9% more homes for sale than in April. In May 2025 median list price was $979,047 and the average listing age was 38 days.