523 Walnut St, Unit A

Aspen, CO 81611

$15,450,000
Price
4
Beds
3,815 Sq. Ft.
$4,050 / Sq. Ft.
3,815
Sq. Ft.
$4,050
per Sq. Ft.
108A3497-Edit
108A3322
108A4493
108A4587
108A4460-2
108A4480-2
108A4566
108A4581
108A3527
108A4538
108A4515
108A3314
108A4505
108A4504
108A4548
108A4558
108A3411
108A3548
108A3568
108A3580
108A3392
108A3393
108A3554
108A3561
108A4561
108A3043
108A3374
108A3540
108A3542
108A3589
108A4602-2

Description

Capture front row views of Aspen from sunrise to sunset, in this elegant four-bedroom single family home within walking distance to the core. A light and open floor plan places the main living room, dining area, and kitchen on the upper level, complemented by a family room adjacent to the kitchen. Two fireplaces and walls of windows frame dramatic mountain scenery, creating an immersive, close up perspective of Ajax. The covered outdoor terrace is an ideal setting for entertaining, complete with...Capture front row views of Aspen from sunrise to sunset, in this elegant four-bedroom single family home within walking distance to the core. A light and open floor plan places the main living room, dining area, and kitchen on the upper level, complemented by a family room adjacent to the kitchen. Two fireplaces and walls of windows frame dramatic mountain scenery, creating an immersive, close up perspective of Ajax. The covered outdoor terrace is an ideal setting for entertaining, complete with a BBQ grill and dining table, and offers an exceptional vantage point for watching fireworks illuminate the slopes of Ajax. The main floor features a primary suite with a spa-like bathroom and soaking tub. The lower level offers high ceilings, three bedroom suites, and a comfortable media room with a wet bar. Additional features include a mudroom, laundry with two sets of washers and dryers, and a two car garage. Smuggler, Rio Grande and Hunter Creek trails are close by for hiking and biking, while downtown Aspen is only a five minute stroll away.
  1. Listed by Carrie Wells • Coldwell Banker Mason Morse-Aspen • (970) 925-7000

Property Details for 523 Walnut Street, Unit A

Garage
Yes
Property Faces
Southeast
Style
Contemporary
Sub/Loc
Fox Crossing
LISTING UPDATED: 01/27/2026 10:52 AM

Property Details for 523 Walnut Street, Unit A

StatusActive
MLS #191466
Days on Market1
Taxes$29,549 / year
HOA Fees$715 / month
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family
Year Built2013
Lot Size0.13 AC / 5,662 SF
CountyPitkin County

Location

Listing Courtesy of Coldwell Banker Mason Morse-Aspen, Carrie Wells
Add your commute

Building Information for 523 Walnut Street, Unit A

Stories-Year Built2013Building Size-Lot Size0.13 AC / 5,662 SF

Payment Calculator

$78,478 per month

30 year fixed, 6.15% Interest

Principal and Interest

$75,301

Property Taxes

$2,462

HOA Dues

$715

The Payment Calculator is for illustrative purposes only.

Property Information for 523 Walnut Street, Unit A

General Information
Location Details
  • Directions: From Main Street - left on N Mill Street. Right on Gibson Ave. Left on Walnut. Property on left.
Key Details
  • Acreage: Refer to Lot Size
  • Room Total: 0
General Details
  • Under Construction: No
  • Parcel #: 273707392015
  • Lv Ht SqFt: 3,815.00
  • Zoning: Residential
  • Total SqFt: 3,815.00
  • Lot Size Area: .13
  • Unfinished SqFt: .00
  • General Info: Unit Faces: Southeast
Feature Details
Feature Details
  • Water Source: Public
  • Payment Per: Monthly
  • Gas: Yes
  • Inclusions: Dryer, Oven, Refrigerator, Washer, Range, Microwave, Dishwasher
  • Cooling: Central Air
  • Fireplace Features: Gas
  • Heating: Radiant, Natural Gas
  • Laundry Features: Inside
  • HOA Dues: $715
  • Condition: Excellent
  • Cooling: Yes
  • Garage Spaces: 2.00
  • Heating: Yes
  • Sanitation:Sewer: Yes
  • Fireplace Y N: Yes
  • Construction: Frame: Yes
  • Exterior: Wood Siding: Yes
  • Condition: Excellent: Yes
  • Gas: Natural Gas: Yes
  • Location Amenities: Corner Lot: Yes
  • Location Amenities: Views: Yes
  • Substructure: Finished Basement: Yes
Listing / Finance Information
Listing Information
  • Pre-Fabricated Home: No
  • Listing Info: REO: No
Financial Information
  • Tax Year: 2024
  • Metro Tax District: Yes
  • Keywords Info: Total HOA Fee Per Year: $8,580.00
  • Financing Info: Metro Tax District: No
  • Financing Info: Transfer Tax: Yes
  • Financing Info: HOA Transfer Fee: No

Property History for 523 Walnut Street, Unit A

DateEvent & SourcePriceAppreciation
Jan 25, 2026

Listed (Active)

Aspen Glenwood MLS #191466

$15,450,000—
Oct 17, 2012

Sold (Public Record)

Public Record #340316731

$1,120,000—
DateEvent & SourcePrice
01/25/2026

Listed (Active)

Aspen Glenwood MLS #191466

$15,450,000
10/17/2012

Sold (Public Record)

Public Record #340316731

$1,120,000

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

Public Records for 523 Walnut Street, Unit A

Taxable ValueLand$366,990Additions$531,850Total$898,840
Tax Record2024$29,549 ($2,462 / month)
Home Facts
Beds4Total Finished SqFt5,599 SqFtAbove Grade Finished SqFt3,815 SqFtFinished Basement SqFt1,784 SqFtStories3Lot Size5,529 SqFtStyleCondominiumYear Built2013CountyPITKINAPN273707392015Fireplace TypeHas Fireplace

Schools near 523 Walnut Street, Unit A

This home is within Aspen School District No. 1 in the County of Pitkin and Sta.
Rating
School
Type
Grades
Distance
Aspen Elementary School
Public - PK to 4
Aspen Middle School
Public - 5 to 8
Aspen High School
Public - 9 to 12
Aspen Community Charter School
Charter - PK to 8
Rating
School
Distance
Aspen Elementary School
PublicPK to 4

Aspen Middle School
Public5 to 8

Aspen High School
Public9 to 12

Aspen Community Charter School
CharterPK to 8

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 523 Walnut Street, Unit A, Aspen, CO 81611

523 Walnut Street, Unit A is a single family home for sale in Aspen, CO 81611. This property was listed for sale on January 26, 2026 by Coldwell Banker Mason Morse-Aspen, it's currently listed at $15,450,000. It has been on the market for a total of 1 days and was last sold on October 17, 2012. This listing's school district is Aspen School District No. 1 in the County of Pitkin and Sta. Nearby schools include Aspen Elementary School, Aspen Middle School and Aspen High School. 523 Walnut Street, Unit A is a 4-bed, 5-bath, 3,815 sqft single family home built in 2013.

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, Inc., its subsidiaries, affiliates and their agents and associated third parties 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.

Listing Courtesy of Coldwell Banker Mason Morse-Aspen, Carrie Wells

All information is deemed reliable, but accuracy is not guaranteed. Listing information is based on information from the Aspen / Glenwood MLS for the period 01/25/2026 05:00 PM through 01/28/2026 09:31 AM. The property information being provided is for the consumer’s personal non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated on 01/27/2026 10:52 AM