800 Kalmia Ave

Boulder, CO 80304

$5,300,000
Price
4
Beds
3,982 Sq. Ft.
$1,331 / Sq. Ft.
3,982
Sq. Ft.
$1,331
per Sq. Ft.
Listed By CompassVirtual Tour
Listed By CompassVirtual Tour

Description

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...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.

Listing Agents

  1. Zach Zeldner

    Zach Zeldner

    Listing Agent

    Compass

    zach.zeldner@compass.com

    P: (720)-480-7650

    CallTextEmail
  2. Zach Zeldner

    Zach Zeldner

    Alternative Listing Agent

    Compass

    zach.zeldner@compass.com

    P: (720)-480-7650

    CallTextEmail

Amenities

  • Air Conditioning
  • Dryer
  • Garage
  • Parking Included
  • Private Outdoor Space
  • Radiant Heating
  • Washer
  • Washer / Dryer in Unit
LISTING UPDATED: 09/25/2025 01:21 PM

Property Details for 800 Kalmia Avenue

StatusActive
MLS #1041862
Days on Compass106
Taxes$14,540 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential-Detached
Year Built1981
Lot Size0.47 AC / 20,354 SF
CountyBoulder County
Buyer's Agent Compensation2.8%

Location

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Building Information for 800 Kalmia Avenue

Stories2Year Built1981Building Size-Lot Size0.47 AC / 20,354 SF

Payment Calculator

$27,401 per month

30 year fixed, 6.28% Interest

Principal and Interest

$26,189

Property Taxes

$1,212

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 800 Kalmia Avenue

Summary
Location and General Information
  • Longitude and Latitude: -105.28663, 40.03848
  • Latitude: 40.04
  • Longitude: -105.29
  • Elementary School District: Boulder Valley Dist RE2
  • Middle Or Junior School District: Boulder Valley Dist RE2
Parking
  • Garage Type 1: No
  • # of Garage Spaces 1: 3
  • # of Garage Spaces 3: Yes
  • Parking Features: Oversized
Taxes and HOA Information
  • Tax Information: No
  • Tax Year: 2024
  • Tax Annual Amount: $14,540
  • Parcel Number: R0071653
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Property
Lot Information
  • Lot Improvements: Wooded, Level
  • Lot Size Area: 20,354.00
  • Lot Size Units: Square Feet
  • Has Irrigation Water Rights: No
  • Has Improvements: No
  • Vegetation: Evergreen Trees, Deciduous Trees
Property and Assessments
  • Total Finished Area Source: Other
  • Total Finished Area Units: Square Feet
  • Living SqFt: 3982
  • Above Grade Finished Area Units: Square Feet
  • Sq Ft Apx: 0
  • Below Grade Finished Area Units: Square Feet
  • Total Finished Area: 3982
  • Location Description 2: No
  • Pano Url Position: 1
  • Are Ditches Active: No
  • Security Features: Smoke Detector(s)
  • New Construction YN: No
  • Property Styles: 2
  • Levels: Two
  • Home Warranty YN: No
Utilities
  • Cooling: Yes
  • Has Solar Photovoltaic: Photovoltaics
  • Solar PV Kilowatts: 9.86
  • Solar PV Year Installed: 2024
  • Utilities 1: No
  • Electric: Electric, XCEL
  • Gas: Natural Gas, XCEL
  • Sewer: City Sewer
  • Green Energy Generation: Solar PV Owned
  • Heating YN: Yes
Interior and Exterior Features
Exterior Features
  • Flooring: Wood Floors
Interior Features
  • ViewYN: Yes
  • Interior Features: Study Area, Eat-in Kitchen, Cathedral/Vaulted Ceilings, Open Floorplan, Pantry, Walk-In Closet(s), Kitchen Island, Steam Shower
  • Laundry Features: Sink, Upper Level
  • Spa YN: No
  • Window Features: Wood Frames, Skylight(s)
  • Fireplaces 1: Gas, Living Room
  • All Bedrooms Conform: Yes
  • Full Bathrooms: 2
  • Half Bathrooms: 2
  • Bathrooms Total Decimal: 4.5
  • Rough-in Bathrooms: 0
  • Three Quarters Bathrooms: 2
  • Baths Full Additional: 0
  • Baths Full Basement: 0
  • Baths Half Additional: 1
  • Baths Half Basement: 0
  • Baths Three Quarters Additional: 0
  • Baths Three Quarters Basement: 0
  • Baths Three Quarters Lower: 0
  • Baths Three Quarters Upper: 1
  • Main Level Bathrooms: 2
Living Room
  • Living Room Level: Main
  • Living Room Length: 23
  • Living Room Width: 21
  • Living Room Area: 483
  • Living Room Floor Covering: Wood Floor
Family Room
  • Has Family Room: No
Kitchen
  • Kitchen Level: Main
  • Kitchen Length: 20
  • Kitchen Width: 9
  • Kitchen Area: 180
  • Kitchen Floor Covering: Wood Floor
Master Bedroom
  • Primary Bedroom Level: Upper
  • Primary Bedroom Length: 20
  • Primary Bedroom Width: 13
  • Primary Bedroom Area: 260
  • Primary Bedroom Floor Covering: Wood Floor
Bedroom 2
  • Bedroom 2 Level: Upper
  • Bedroom 2 Length: 13
  • Bedroom 2 Width: 12
  • Bedroom 2 Area: 156
  • Bedroom 2 Floor Covering: Wood Floor
Bedroom 3
  • Bedroom 3 Level: Upper
  • Bedroom 3 Length: 14
  • Bedroom 3 Width: 12
  • Bedroom 3 Area: 168
  • Bedroom 3 Floor Covering: Wood Floor
Bedroom 4
  • Bedroom 4 Level: Main
  • Bedroom 4 Length: 11
  • Bedroom 4 Width: 12
  • Bedroom 4 Area: 132
  • Bedroom 4 Floor Covering: Wood Floor
Laundry Room
  • Laundry Room Length: 7
  • Laundry Room Width: 8
  • Laundry Room Floor Covering: Tile
Rec Room
  • Rec Room Length: 24
  • Rec Room Width: 29
  • Rec Room Level: Additional Upper
Study
  • Study Length: 13
  • Study Width: 12
  • Study Level: Main
  • Study Floor Covering: Wood
Rental
Rental Information
  • Lease Sq Ft Unit: Square Feet
  • Horse YN: No

Property History for 800 Kalmia Avenue

DateEvent & SourcePriceAppreciation
Jun 15, 2022

Sold (Public Record)

Public Record #1492605214

$2,691,300—
DateEvent & SourcePrice
06/15/2022

Sold (Public Record)

Public Record #1492605214

$2,691,300

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 800 Kalmia Avenue

Taxable ValueLand$148,537Additions$16,913Total$165,450
Tax Record2024$14,540 ($1,212 / month)
Home Facts
Beds3Baths1.8Total Finished SqFt2,627 SqFtAbove Grade Finished SqFt2,627 SqFtStories2Lot Size20,343 SqFtStyleSingle Family ResidenceYear Built1981Year Renovated2006Zoning1112CountyBOULDERAPN1461-24-1-17-002

Schools near 800 Kalmia Avenue

This home is within Boulder Valley Re 2 School District.
Rating
School
Type
Grades
Distance
Foothill Elementary School
Public - K to 5
Centennial Middle School
Public - 6 to 8
Boulder High School
Public - 9 to 12
University Hill Elementary School
Public - PK to 5
Rating
School
Distance
Foothill Elementary School
PublicK to 5

Centennial Middle School
Public6 to 8

Boulder High School
Public9 to 12

University Hill Elementary School
PublicPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 800 Kalmia Avenue, Boulder, CO 80304

800 Kalmia Avenue is a single family home for sale in Boulder, CO 80304. This property was listed for sale on August 20, 2025 by Compass, it's currently listed at $5,300,000. It has been on the market for a total of 106 days and was last sold on June 15, 2022. This listing's school district is Boulder Valley Re 2 School District. Nearby schools include Foothill Elementary School, Centennial Middle School and Boulder High School. 800 Kalmia Avenue is a 4-bed, 6-bath, 3,982 sqft single family home built in 1981.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Based on information from one of the following Multiple Listing Services: REColorado, Summit MLS Inc (a wholly owned subsidiary of Summit Association of REALTORS), Pikes Peak Association of Realtors, IRES, Grand Junction Area REALTOR, CREN, Vail Board of REALTORS and Grand County Board of REALTORS . Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by REColorado, Summit MLS Inc (a wholly owned subsidiary of Summit Association of REALTORS), Pikes Peak Association of Realtors, IRES, Grand Junction Area REALTOR, CREN, Vail Board of REALTORS and Grand County Board of REALTORS is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.