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120 Keystone, Sun Valley, ID 83353

$5,250,000
  • 120 Keystone, Sun Valley, ID 83353 Main Photo

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Active

Listing Courtesy of: Keller Williams Sun Valley Southern Idaho
Agency Phone: 208-734-1991
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LOT SIZE 52.000 acres MLS#98979014
STATUSActive PROPERTY TYPELand - Commercial SUBDIVISIONElkhorn Sub

Listing Courtesy of: Keller Williams Sun Valley Southern Idaho
Agency Phone: 208-734-1991
IDX logo


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. 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.

120 Keystone | MLS# 98979014

This land located at 120 Keystone, Sun Valley, ID 83353 is currently listed for sale with an asking price of $5,250,000. The property has approximately 52.00 Acres. Search Sun Valley real estate on dbergland.cbboise.com today.

Property Features

Property Type: Land - Commercial
Fenced: Yes
Lot Size: 52.00 Acres
Taxes: $1,206

Feature Descriptions

Days on Site: 24
Fencing: Fence/Livestock
Lot: Over 40 Acres
Parcel#: RP1M0000000750
Sewer: Septic Tank
Utilities: Propane, Phone Connected, Electricity Connected, Sewer Connected, Underground Utilities
Water: Well, Geothermal
Waterfront: Pond/Stream/Creek
Zoning: BC/R-10 (UIB)

Listed By / Shown By

Listed By

Agency Name: Keller Williams Sun Valley Southern Idaho
Agency Phone: 208-734-1991

Shown By

Agent Name: Don Bergland
Agent Phone: (208) 901-6076
Agency Title: Coldwell Banker Tomlinson

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Estimated Payment

$ 29,574.45 per month $27,942.70 Principal & Interest $100.50 Property Tax $1,531.25 Homeowner's Insurance

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Disclaimer: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 04/17/2026. The listing information on this page last changed on 04/17/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Fri 04/17/2026 12:07:01 AM EST) or INTERMOUNTAIN MLS (last updated Thu 04/16/2026 11:32:19 PM EST). Real estate listings held by brokerage firms other than Coldwell Banker Tomlinson may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.

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