120 Keystone St, Sun Valley, ID 83353
Other
AUD $7,042,030
USD $4,900,000
Published on: 25 Mar 2026
Last updated on: 13 Sep 2026
Property ID: 110106678644
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Land, Sun Valley, ID
120 Keystone St, Sun Valley, ID 83353
Sun Valley Legacy Estate & Development Masterpiece. Discover the pinnacle of mountain living at 120 Keystone St, a premier 52-acre legacy estate in the exclusive Elkhorn area of Sun Valley, Idaho. This rare dual-parcel landholding (18.6 & 33.5 acres) offers a breathtaking canvas for a private horse property or a high-end boutique residential development. The Ultimate Equestrian & Outdoor Retreat: Bordering U.S. Forest Service land, the estate provides unparalleled private canyon access for horseback riding and hiking. Secure your legacy with 1883 water rights (irrigation/stock) and a high-yield well. The property features a serene pond with on-site geothermal potential, creating a year-round alpine oasis for wildlife and residents alike. Developer Upside & Infrastructure: Zoned BC/R-10 with patented mining claims, the land is ready for a luxury compound or multi-homesite project. Utilities (well, septic, buried power) are already installed. Significant val Search address on YouTube for video tours.
Property Details
Basic Info
Basic Info
Property Type
Other
Listing Status
Active
Land Size
210,436.72 m2
County
Blaine
Parcel ID
RP1M0000000750
Provider
Intermountain Multiple Listing Service
Subdivision
Elkhorn Sub
Brokerage Office Name
Keller Williams Sun Valley Southern Idaho
Brokerage Office Phone
(208) 734-1991
Neighbourhoods
Elkhorn Sub
Address
120 Keystone St, Sun Valley, ID 83353
Tax History
| Year | Tax amount | |
|---|---|---|
| 2025 | USD $1207 | AUD $1,735* |
*Converted price in your currency provided by Open Exchange Rates. Exchange rates are subject to continuous change. Neither realestate.com.au nor its affiliates guarantee that the conversion reflects current conversion rates and are not responsible for any inaccuracies. realestate.com.au recommends that you independently verify any information before relying on it.
Contact Agent
James Tautkus
Keller Williams Sun Valley Southern Idaho
647 Filer Ave Suite 101, Twin Falls, ID 83301
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Contact Agent
Contact Agent
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James Tautkus
647 Filer Ave Suite 101, Twin Falls, ID 83301
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Property ID: 110106678644
Original Property ID: 3yd-IMLSID-98979014Data provided by Intermountain Multiple Listing Service, MLS #: 98979014
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