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For sale
  • $10,200,000

    285 Conundrum Crk, Aspen, CO 81611

    3beds
    1,221sqft
    : 
    $61,722/mo
    Get pre-qualified
    Single Family Residence
    Built in 1970
    3 Acres Lot
    $9,329,600 Zestimate®
    $8,354/sqft
    $-- HOA

    What's special

    Expansive flat terrain
    An Exceptional Opportunity in the Heart of Castle Creek Valley. Discover a rare offering just minutes from Aspen, where convenience meets the tranquility of country living. Ideally positioned at the confluence of Castle Creek Valley and Conundrum Creek Valley--one of the widest and sunniest stretches along Castle Creek Road--this remarkable 3-acre property offers an unparalleled building opportunity in a truly breathtaking setting. With expansive, flat terrain and all-day sun from early morning through evening, this premier homesite invites you to design and build your dream residence exactly as you envision. If has been left to the Buyer to designate an activity envelope, which will provide flexibility for placement, allowing you to fully capture the surrounding natural beauty and panoramic views. Despite its rural feel, the property is located just 8 minutes from the core of Aspen, with the Aspen school bus conveniently stopping at the top of Conundrum Creek. Aspen Country Day is only 2 miles down the road. The land is well-suited for families, equestrian use, and those seeking space for dogs and outdoor living. Rich in history and natural significance, Conundrum Creek Valley is known as the spiritual valley of the Ute Indians, where journeys to the hot springs once marked a rite of passage. Owning this property will be your rite of passage. The property includes a charming, 3-bedroom cozy cottage that may be used as a residence or rental during the construction of a new home. There is also potential--subject to Pitkin County approval--to retain the cottage as a Caretaker Dwelling Unit (CDU). Views extend up Conundrum Valley toward the backside of Aspen Highlands, and down the valley toward the striking red cliffs. Included is a well right, spring right and a pond right. Multiple building site options are available, with current allowances for approximately 5,750 square feet above grade. Additional square footage may be pursued through Growth Management or TDR processes. A future owner will complete site plan approval based on their preferred home placement. The property is well-equipped with valuable water resources, including an adjudicated spring, pond, and well. Existing infrastructure includes underground electric, propane, and septic systems. High-speed connectivity options are available via broadband, Dish, or Starlink. Enjoy the soothing sounds of Castle Creek just across the road and take in peaceful walks along Conundrum Creek Road beneath towering 100-foot Blue Spruce and Aspen trees or hike up to the Conundrum Hot Springs.
    57 days
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    266
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    8
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    Zillow last checked:

    Listing updated:

    Listed by:

    Heidi Houston 970-925-6063,

    Compass Aspen

    Source: AGSMLS,MLS#: 192999

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 3
      • Bathrooms: 2
      • Full bathrooms: 1
      • 3/4 bathrooms: 1
      Heating
      • Hot Water, Baseboard
      Appliances
      • Laundry: Inside
      Features
      • Has fireplace: No
      Interior area
      • Total structure area: 1,221
      • Total interior livable area: 1,221 sqft
      • Finished area above ground: 1,221
      • Finished area below ground: 0

      Property

      Lot
      • Size: 3 Acres
      • Features: Landscaped
      Details
      • Parcel number: 291102100013
      • Zoning: Residential

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Other
      • Property subtype: Single Family Residence
      Materials
      • Wood Siding, Frame
      • Foundation: Slab
      • Roof: Metal
      Condition
      • Good
      • New construction: No
      • Year built: 1970

      Utilities & green energy

      • Water: Well, Other
      • Utilities for property: Propane

      Community & HOA

      Community
      • Subdivision: Castle Creek
      Location
      • Region: Aspen

      Financial & listing details

      • Price per square foot: $8,354/sqft
      • Tax assessed value: $5,106,700
      • Annual tax amount: $10,400
      • Date on market: 5/27/2026
      • Listing terms: Cash
      • Inclusions: Dryer, Energy Star Dishwash, Oven, Refrigerator, Washer, Window Coverings, Stove Top, Range, Microwave, Energy Star Dryer, Dishwasher

        Estimated market value

        $9,329,600

        $8.86M - $9.80M

        $23,237/mo

        Price history

        DateEventPrice
        5/27/2026Listed for sale$10,200,000$8,354/sqft
        Source: AGSMLS #192999 Report a problem
        11/16/2025Listing removed$10,200,000$8,354/sqft
        Source: AGSMLS #188387 Report a problem
        5/27/2025Listed for sale$10,200,000+3%$8,354/sqft
        Source: AGSMLS #188387 Report a problem
        10/22/2024Listing removed$9,900,000$8,108/sqft
        Source: AGSMLS #181131 Report a problem
        8/23/2024Price change$9,900,000-5.7%$8,108/sqft
        Source: AGSMLS #181131 Report a problem
        7/31/2024Price change$10,500,000-3.7%$8,600/sqft
        Source: AGSMLS #181131 Report a problem
        5/18/2024Listed for sale$10,900,000-2.7%$8,927/sqft
        Source: AGSMLS #181131 Report a problem
        1/16/2024Listing removed--
        Source: AGSMLS #181131 Report a problem
        9/24/2023Listed for sale$11,200,000+135.8%$9,173/sqft
        Source: AGSMLS #181131 Report a problem
        11/14/2021Listing removed--
        Source: Zillow Rental Manager Report a problem
        10/25/2021Price change$4,500-18.2%$4/sqft
        Source: Zillow Rental Manager Report a problem
        9/21/2021Price change$5,500-65.6%$5/sqft
        Source: Zillow Rental Manager Report a problem
        6/17/2021Listed for rent$16,000$13/sqft
        Source: Zillow Rental Manager Report a problem
        6/16/2021Listing removed--
        Source: AGSMLS #168160 Report a problem
        1/12/2021Listed for sale$4,750,000+39.9%$3,890/sqft
        Source: AGSMLS #168160 Report a problem
        8/1/2019Listing removed$3,395,000$2,781/sqft
        Source: Compass Aspen #155257 Report a problem
        4/23/2019Price change$3,395,000+2.9%$2,781/sqft
        Source: Compass Aspen #155257 Report a problem
        12/14/2018Price change$3,300,000-2.2%$2,703/sqft
        Source: Compass #155257 Report a problem
        9/3/2018Listed for sale$3,375,000+164.7%$2,764/sqft
        Source: Compass #155257 Report a problem
        6/4/2002Sold$1,275,000$1,044/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$9,759 +9.6%$319,170 -7.1%
        2024$8,901 +41.2%$343,640 -0.7%
        2023$6,305 +0.3%$345,960 +73.2%
        2022$6,288 $199,720 -2.8%
        2021-- $205,460 +7%
        2020$5,923 +0.5%$192,080
        2019$5,891 +33.5%$192,080 -0.7%
        2018$4,412 $193,430 +23.6%
        2017$4,412 +15.2%$156,500 -0.2%
        2016$3,831 -10%$156,810
        2015$4,255 +7.5%$156,810 +8.7%
        2014$3,959 $144,280 -1.4%
        2013-- $146,300 -4%
        2012$4,006 $152,390
        2011-- $152,390 -20.2%
        2010-- $191,040 -13.2%
        2009-- $220,010 +40.7%
        2008$3,865 +65.7%$156,360
        2006$2,333 -2.3%$156,360 +83.3%
        2005$2,387 $85,320 -11.6%
        2004-- $96,550
        2003-- --
        2002-- --
        2001-- --
        2000-- --
        1999-- $689,500
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

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        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
        See how much you could borrow to make a competitive offer.

        Climate risks

        Neighborhood: 81611

        Getting around

        0 / 100
        Car-Dependent
        20 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating

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