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For sale
  • $19,750,000

    671 Alpine Ln, Ketchum, ID 83340

    7beds
    9,056sqft
    : 
    Single Family Residence
    Built in 1989
    0.48 Acres Lot
    $17,193,000 Zestimate®
    $2,181/sqft
    $-- HOA

    What's special

    Heated walkways and drivewayCozy tv roomSunny quiet residential neighborhoodNew da vinci roofTwo powder rooms
    Experience timeless elegance in this completely remodeled .48-acre estate, masterfully designed by Mark Sikes. The breathtaking main residence showcases 5 bedrooms and 5.5 baths with a 2-car garage, complemented by a guesthouse with 2 additional guest suites, 2.5 baths, garage and private gym. Every detail exudes sophistication creating a seamless fusion of luxury, comfort, and modern convenience Main House: 6708 SF livable square feet Architecture by Janet Jarvis Remodeled in 2019 by Lee Gilman Interior design by Mark D Sikes, winter 2024 Five bedrooms, all with en-suite baths Large great room with wet bar, fireplace and multiple seating areas Formal dining room with custom banquette and fireplace Hardwood flooring & designer wool carpeting throughout Kitchen with attached sitting area & fireplace Butler's Pantry Cozy TV Room Mud room with custom ski "lockers" Two car attached garage Lower-level primary bedroom with spa-bathroom, large dressing room and private outdoor patio Temperature controlled wine storage room Lower level sitting room with wet bar -- opens to exterior courtyard Two powder rooms Gas forced air and air conditioning Guest House: 2436 livable square feet Two bedroom suites, plus loft office, kitchenette Large gym with sauna and bathroom Additional two-car attached garage Designer furniture negotiable. Exterior: 0.48-acre property in downtown Ketchum. Landscape architecture by Chase Goulay, BYLA Large outdoor patio, fire-pit and multiple dining & seating areas, perfect for entertaining. New Da Vinci roof. Heated walkways and driveway Sunny, quiet residential neighborhood Two blocks to restaurants, shopping and Ketchum Town Square
    98 days
    |
    2,024
    |
    55
    |

    Zillow last checked: 7 hours ago

    Listing updated: February 11, 2026 at 11:31pm

    Listed by:

    Williams | Hendricks,

    Sun Valley Real Estate, LLC,

    Katherine Rixon 208-913-0072

    Source: Sun Valley BOR MLS,MLS#: 25-333918MLS Logo

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 7
      • Bathrooms: 10
      • Full bathrooms: 10
      Heating
      • Has Heating (Unspecified Type)
      Features
      • Smart Thermostat
      • Has fireplace: Yes
      Interior area
      • Total structure area: 9,056
      • Total interior livable area: 9,056 sqft
      • Finished area above ground: 9,056

      Property

      Parking
      • Parking features: Garage - Attached
      • Has attached garage: Yes
      Features
      • Has spa: Yes
      Lot
      • Size: 0.48 Acres
      Details
      • Parcel number: RPK0000047003A
      • Zoning: K/LR

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Condition
      • New construction: No
      • Year built: 1989

      Community & HOA

      Community
      • Subdivision: Ketchum Townsite
      Location
      • Region: Ketchum

      Financial & listing details

      • Price per square foot: $2,181/sqft
      • Tax assessed value: $9,928,337
      • Annual tax amount: $35,133
      • Date on market: 12/10/2025
      • Inclusions: Washer, Refrigerator, Range - Gas, Oven - Gas, Dryer, Dishwasher
      • Exclusions: All Owners Personal Property, Art, Furnishings
      • Road surface type: Paved
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        Estimated market value

        $17,193,000

        $16.16M - $18.22M

        $4,767/mo

        Price history

        Price history
        DateEventPrice
        12/10/2025Listed for sale$19,750,000+119.6%$2,181/sqft
        Source: Sun Valley BOR MLS #25-333918 Report a problem
        10/29/2018Listing removed$8,995,000$993/sqft
        Source: Keller Williams Realty Sun Valley and Southern Idaho #18-323128 Report a problem
        6/16/2018Listed for sale$8,995,000$993/sqft
        Source: Keller Williams Sun Valley Southern Idaho #18-323128 Report a problem

        Public tax history

        Public tax history
        YearProperty taxesTax assessment
        2024$33,458 +9.3%$9,803,337 +16.3%
        2023$30,623 -7.4%$8,429,070
        2022$33,086 -2.4%$8,429,070 +22%
        2021$33,887 -6.2%$6,906,485 +11.8%
        2020$36,111 +15.8%$6,178,254 +23%
        2019$31,180 +3.4%$5,021,689 +15.9%
        2017$30,154 $4,331,365 +1.7%
        2016$30,154 +1%$4,257,200 +20.5%
        2013$29,848 $3,532,449 -5.5%
        2012-- $3,738,555 -4.3%
        2011-- $3,906,403 -6.9%
        2010-- $4,195,225

        Find assessor info on the county website

        BuyAbility℠ payment

        Est. payment
        $108,268/mo
        Principal & interest
        $101849
        Property taxes
        $6419
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          Climate risks

          Neighborhood: 83340

          Getting around

          68 / 100
          Somewhat Walkable
          63 / 100
          Bikeable

          Nearby schools

          GreatSchools rating

          Local experts in 83340

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