$4,900,000
 $26,304 est/mo Sourced by Back At You

120 Keystone,Sun Valley, ID 83353

Sun Valley, ID 83353

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Description

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.

Details

MLS #98979014
Listing TypeFor Sale
Sub-TypeResale
StatusActive
Days On Site149
Listing Provided ByKeller Williams Sun Valley Southern Idaho | James Tautkus

Features

ZoningBC/R-10 (UIB)
Acreage52.00
Water FrontYes
Property ViewYes

Exterior

Lot FeaturesOver 40 Acres, Pasture, Sloped, Views, Wooded, Borders Public Owned Land
FencingFence/Livestock

Utilities

UtilitiesPropane, Phone Connected, Electricity Connected, Sewer Connected, Underground Utilities
SewerSeptic Tank
ElectricInstalled

Taxes

Tax Year2025
Tax Annual Amount1206.84
Tax Legal DescriptionElkhorn 46, Keystone 41 A, Carbon Hill 74 A, SEC 15 4N 18E

Area Information

StateID
CountyBlaine
CitySun Valley
Zip Code83353
AreaBlaine
Community NameElkhorn Sub
Listing VS Median (in Elkhorn Sub)
Price:
$4,900,000
low | high
Med:
$0
On site:
149
low | high
Med:
Sourced by Back At You

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Learn More About This Property

StateID
CountyBlaine
CitySun Valley
Zip Code83353
AreaBlaine
Community NameElkhorn Sub
Listing VS Median (in Elkhorn Sub)
Price:
$4,900,000
low | high
Med:
$0
On site:
149
low | high
Med:
Sourced by Back At You
Listing Updated: August 12, 2026 at 4:14:36 PM PDT