120 Keystone St

Sun Valley, ID 83353

About this property

Discover 120 Keystone St, a premier 52-acre legacy estate for sale in the exclusive Elkhorn area of Sun Valley, Idaho. Positioned just minutes from downtown Ketchum and the Sun Valley Resort, this rare dual-parcel landholding--comprising 18.6 and 33.5 acres--offers an unparalleled opportunity for a private equestrian compound or a boutique luxury residential development. Bordering U.S. Forest Service land, the property provides direct, private canyon access for horseback riding, hiking, and outdoor recreation right from your back door. Appraised at $10.5M, this Sun Valley real estate asset combines pristine natural amenities with exceptional utility. The land is anchored by senior 1883 water rights for irrigation and stock, a high-yield well, and a serene pond with on-site geothermal potential. Ready for immediate development, the property features BC/R-10 zoning with patented mining claims, along with installed infrastructure including well, septic, and buried power. Significant value-add and investment upside include a prospective 18-acre USFS land swap to expand contiguous acreage, as well as a recent site analysis indicating potential for a third building site to increase overall density. As one of the last large private landholdings in a supply-constrained Blaine County market, the seller is offering flexible acquisition terms, including owner financing (owner carry paper) for up to five years with 50% down. Search "120 Keystone St Sun Valley" on YouTube to view complete video tours.

About this property

Discover 120 Keystone St, a premier 52-acre legacy estate for sale in the exclusive Elkhorn area of Sun Valley, Idaho. Positioned just minutes from downtown Ketchum and the Sun Valley Resort, this rare dual-parcel landholding--comprising 18.6 and 33.5 acres--offers an unparalleled opportunity for a private equestrian compound or a boutique luxury residential development. Bordering U.S. Forest Service land, the property provides direct, private canyon access for horseback riding, hiking, and outdoor recreation right from your back door. Appraised at $10.5M, this Sun Valley real estate asset combines pristine natural amenities with exceptional utility. The land is anchored by senior 1883 water rights for irrigation and stock, a high-yield well, and a serene pond with on-site geothermal potential. Ready for immediate development, the property features BC/R-10 zoning with patented mining claims, along with installed infrastructure including well, septic, and buried power. Significant value-add and investment upside include a prospective 18-acre USFS land swap to expand contiguous acreage, as well as a recent site analysis indicating potential for a third building site to increase overall density. As one of the last large private landholdings in a supply-constrained Blaine County market, the seller is offering flexible acquisition terms, including owner financing (owner carry paper) for up to five years with 50% down. Search "120 Keystone St Sun Valley" on YouTube to view complete video tours.

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$4,900,000 Active
0 sqft

Presented By Coldwell Banker Distinctive Properties Twin Fall

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Keller Williams Sun Valley Southern Idaho
1-208-734-1991
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Area Information

Elkhorn in Sun Valley | Blaine County | Other

$ 4,900,000
This listing is play_arrow 345.5% higher than the average in the area
$ 1,100,000 in the area
0 SqFt
This listing is play_arrow 0% larger than the average in the area
0 SqFt in the area
$ 0 $/SqFt
This listing is play_arrow 0% less than the average in the area
$ 0 $/SqFt in the area
169 days on site
This listing is play_arrow 604.2% above the average in the area
24 days on site in the area

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Listed By James Tautkus
Brokerage: Keller Williams Sun Valley Southern Idaho

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