New

Virtual Tour

$3,850,000

2 days ago

503 Kalmia Ave, Boulder, CO

House

5 Bed

4 Bath

5113 sqft

MLS® 1050848

Key Facts
Description
Rooms
Map

Key Facts

Type Single Family Residence

Levels Residential

Size 5113 sqft

Garage Yes

Taxes $28,250

Days Active 1

Lot Size 0.57 acres

Approx. Age 1978

Avg. Price Per Sqft $752

MLS® Number 1050848

Property Address: 503 Kalmia Ave, Boulder, CO, 80304-1733

Average square foot calculated using Size range provided by listing agent.

Description

Privately positioned on 0.57 acres behind a dramatic, illuminated gated driveway, this architecturally distinguished estate, renovated by Harvey Hine, reflects a refined mid-century modern aesthetic and offers a sophisticated balance of timeless design, privacy, and effortless livability. The main-floor primary suite offers a serene retreat with a generous walk-in closet and spa-inspired bath, allowing for luxurious single-level living. An oversized pivoting wood door provides an elegant introduction to the home. The living room features a vaulted ceiling, a statement tiled fireplace, and maple hardwood floors, while large windows and glass doors create a natural connection to the elevated rear deck, ideal for entertaining or quiet evenings at home. The chef's kitchen blends mid-century-inspired warmth with modern performance, featuring custom walnut cabinetry, a dramatic waterfall stone island, designer tile backsplash, walk-in pantry, Wolf range, and Sub-Zero refrigeration. A refined library lounge transitions to a flexible office or fifth bedroom with direct access to the front patio. The fully finished lower level includes a media lounge and private guest suite, with architectural renderings available to reimagine the space as a wellness retreat. Outdoors, the grounds unfold as a secluded oasis with towering 50-foot evergreens, natural boulders, a stone patio, a seasonal water feature, and multiple intimate seating areas. A heated bonus studio provides exceptional flexibility as a gym, art studio, or private office. With its scale, privacy, and layout, the property also presents compelling Sundance Film Festival 2027 rental potential. Ideally located on one of the most desirable streets in coveted Newlands, just minutes to downtown Boulder, open space, trails, shops, and schools. Explore the 3D tour and property video.

MLS® Number1050848

Laundry Level

Central VacNo

FireplaceNo

Acreage0.57

Exterior

GarageYes

Approx. Age1978

BasementPartial, Partially Finished, Sump Pump

DrivewayGarage Door Opener, RV Access/Parking, Attached

Garage Spaces2

Heat

A/C

Heating Fuel

Extras

Price History

-End Date

Not Sold YetSold Price

For Sale

Feb 4, 2026List Date

$3,850,000List Price

Home Appraisal

This property is estimated to sell between: $2,604,000 and $4,473,000.

Similar properties in this area sold on average for: $2,604,772

Expected to sell in 107 days. Similar properties sold in 108 days. This home has been on eXp Realty for 1 day.

The estimated sale price does not take into account many variables such as recent renovations, type of appliances, school district etc. To get a more accurate estimate please contact agent.

Commute

Commute

Starting Address

Destination Address

Like what you see?

Complete the form and we'll be in touch. No login necessary.

Add a Comment

I want to view this property

By checking this box, and clicking "Take a Tour", I am confirming that I have read and agree to Zoocasa's Data Processing & Privacy Policy, and to Zoocasa's Terms of Use.

By checking this box, and clicking "Take a Tour", I am electronically signing and consenting to receive marketing communications (about real estate brokerage services and one or more properties that I may buy, sell, or rent), that may be delivered to me via email, telephone and/or text messaging (using "automated technology" such as an automatic telephone dialing system, and/or an artificial or prerecorded voice), from Zoocasa, eXp Realty® and its independent contractor real estate agents, and/or its or their affiliates, using the contact information I provided. Consent is not a condition of purchase. I may opt-out at any time by emailing [email protected] or calling 1-844-683-4664.

Similar Listings

Comparable Properties

Explore eXp Find an Agent Join eXp Investor Relations Company Careers Home Guides

eXp Life Zoocasa SUCCESS®SUCCESS® Lending eXp Revenos eXp Commercial eXp Luxury eXp Land and Ranch Accessibility

Terms and Conditions Privacy Rights Request Privacy Policy Cookie Policy Brand Guidelines Help Sitemap

2219 Rimland Drive, Suite 301, Bellingham, Washington, 98226

1 833-303-0610

[email protected]

eXp REALTY

DMCA Notice

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply

Fair Housing and Reasonable Accommodations

MLS Compliance Statements

Karen Richards - Designated Managing Broker, Broker Operations - TX

Texas Real Estate Commission information about brokerage services

Texas Real Estate Commission Consumer Protection Notice

eXp Realty® is committed to adhering to the guidelines of The New York State Fair Housing Regulations.The Fair Housing Notice →

*Standardized Operating Procedure for Purchasers of Real Estate Pursuant to Real Property Law 442-H.Learn More →

eXp Realty of California, Inc. | CA DRE# 01878277 | Deborah Penny - Designated Broker

eXp Realty of Southern California, Inc. | CA DRE#01325837 | Jason Crawford – Designated Broker

eXp Realty of Greater Los Angeles, Inc. | CA DRE# 01240990 | Mike Mendibles - Designated Broker

eXp Realty of Northern California, Inc. | CA DRE# 01951343 | Ryan Rosas - Designated Broker