#IR1027613, The Bernardi Group, Listing Office: Coldwell Banker Realty-Boulder
#IR1027404·
Listing office: Open Real Estate·
Listing agent: Sara Groem·
Listing office phone: 3032321111
$4,550,000 List price
503 Kalmia Ave Boulder, CO 80304
5 beds
3 full, 1 partial
5,113 sqft
0.6 acres
$890 / sqft
House
Property details
About 503 Kalmia Ave
Open House on Saturday (5/31) from 12-2 PM! 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
Home typeSingle Family Residence
HeatingForced Air
StatusActive
CoolingCeiling Fan(s), Central Air
Size5,113 sqft
BasementYes
Lot size0.57 Acres
Year built1978
ParkingOversized, RV Access/Parking
MLS #IR1027404
Attached garage2 spaces
FireplaceGas, Living Room
Summary
- Partial Bathrooms: 1
- Full Bathrooms: 3
- Appliances: Dishwasher, Disposal, Microwave, Oven, Refrigerator
- Basement: Yes
- Flooring Type: Wood
- Interior: Eat-in Kitchen, Five Piece Bath, Kitchen Island, Open Floorplan, Pantry, Vaulted Ceiling(s), Walk-In Closet(s)
- Fireplace: Gas, Living Room
- Total Bedroom Count: 5
- Garage Space: 2 spaces
- Attached Garage: Yes
- Parking: Oversized, RV Access/Parking
- Architectural Style: Contemporary
- Heating: Forced Air
- Cooling: Ceiling Fan(s), Central Air
- List Price: $4,550,000
- Price/SqFt: $889
- Annual Tax Amount: $27,759
- Tax Year: 2023
- Lot: Flood Zone, Level, Sprinklers In Front
- Year Built: 1978
- Living Area: 5,113 SqFt
- Lot Size: 0.57 Acres
- MLS Number: IR1027404
- MLS Name: RECOLORADO
- Office Name: Open Real Estate
- Office Phone: (303) 232-1111
- Listing Agent: Sara Groem
Listings courtesy of REColorado as distributed by MLS GRID.
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The information contained in this publication is subject to change without notice. METROLIST, INC., DBA RECOLORADO MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. METROLIST, INC., DBA RECOLORADO SHALL NOT BE LIABLE FOR ERRORS CONTAINED HEREIN OR FOR ANY DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
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© 2025 METROLIST, INC., DBA RECOLORADO® – All Rights Reserved
6455 S. Yosemite St., Suite 300
Greenwood Village, CO 80111 USA
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Last updated on: 5/31/2025, 9:12:30 PM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.
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$4,550,000
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. Most Boulder, CO residents have annual incomes between $35k-100k. The majority of families are single, no kids. Residents of this area typically have post secondary degree education.
How much money do the neighbors make?
15%
<35k
30%
35k-100k
27%
100k-200k
28%
200k+
What level of education do the neighbors have?
High School Diploma
Post Secondary Degree
Masters Degree
Doctorate
What types of families live nearby?
35%
Single, No Kids
6%
Single, with Kids
30%
Married, No Kids
29%
Married, with Kids
Are the neighbors home owners or renters?
Home Owners
Renters
How old are people in this area?
18%
<11 yrs old
8%
12-17 yrs old
15%
18-34 yrs old
47%
35-64 yrs old
12%
65+ yrs old
What do the neighbors do for fun?
Skiing/snowboarding
Men's Tennis- Tennis
Where do the neighbors shop?
Nordstrom
Bloomingdales
Brooks Brothers
Where do the neighbors go to eat?
California Pizza Kitchen
Bonefish Grill
Qdoba
What do the neighbors drive?
BMW
Lexus
Acura
What do the neighbors listen to?
Talk/Personality
News
Sports
All data provided by Home Junction and Claritas
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Frequently asked questions
About 503 Kalmia Ave
The listing price of 503 Kalmia Ave property is $4,550,000.
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 $4,550,000.
In April 2025 more than 26 listings in Boulder, CO were sold above the asking price. During the same period more than 27 listings were sold at asking price, while more than 99 were sold below. The inventory of homes for sale in Boulder, CO between March and April 2025 increased by 33%. Listings spent 49 days on the market in April 2025, and had a median list price of $998,062 during the same period.
From Rocket Homes Real Estate and based on county public records data.