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Svea Grover

svea.grover@engelvoelkers.com +1(208) 720-0377

$ 5,250,000

Est. payment -/mo

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Active

120 Keystone St Sun Valley, ID 83353

52 Acres Lot

UPDATED:

Key Details

Property Type Vacant Land

Sub Type Single Family Residence

Listing Status Active

Purchase Type For Sale

MLS Listing ID 26-334170

HOA Y/N No

Annual Tax Amount $1,206

Tax Year 2025

Lot Size 52.000 Acres

Acres 52.0

Lot Dimensions Realtor

Property Sub-Type Single Family Residence

Source Sun Valley Board of REALTORS®

Property 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.
Search address on YouTube for video tours. 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 senior 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 value-add opportunities exist through a potential 18-acre USFS land swap, and recent analysis indicates potential for a third building site, offering even greater density and investment value.

Strategic Opportunity: Located minutes from Ketchum and Sun Valley Resort, this $10.5M-appraised asset is offered with flexible acquisition options. Owner will carry paper for up to five years with 50% down; other terms are negotiable. Control one of the last large private holdings in a supply-constrained market.

Location

State ID

County Blaine

Area Sun Valley

Zoning BC/R-10

Direction Located at the gated, private terminus of Keystone Street within the exclusive Elkhorn community of Sun Valley, Idaho.

Interior

Fireplace No

Exterior

Fence Fenced

Utilities Available Electric, Telephone, Well-Individual, Septic, Underground Utilities

Waterfront Description Pond,See Realtor Remarks,Wetlands

View See Remarks

Garage No

Others

Tax ID RP1M0000000750

Listed by Keller Williams Sun Valley Southern Idaho

NEARBY SCHOOLS & PROPERTIES

Svea Grover

License ID: SP44823

+1(208) 720-0377

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