120 Keystone St. Sun Valley, ID 83340 Active

UPDATED: 11/19/2025 12:09 AM ON SITE: 165 days on site

$5,400,000

52 Acres

Key Details

Property Type Vacant Land

Sub Type Build to Suit Residential

Listing Status Active

Purchase Type For Sale

Subdivision 0 Not Applic.

MLS Listing ID 98950150

HOA Y/N No

Annual Tax Amount $809

Tax Year 2024

Lot Size 52.000 Acres

Acres 52.0

Property Sub-Type Build to Suit Residential

Source IMLS 2

Property Description

A rare Sun Valley offering—this gated 52-acre estate spans two parcels with on-site geothermal water, sweeping Bald Mountain views, and direct access to untouched nature. A secluded forking canyon, accessible to almost no one else, enhances its sense of privacy. The property features a high-yield 20 GPM well and buried electricity for clean aesthetics and reliability. Just minutes from Sun Valley's core, it offers the perfect blend of seclusion and convenience. Bordering Forest Service land, it's a haven for wildlife—elk bugling in fall, ducks in spring, and deer year-round. Enjoy iconic sunsets over the bowls from this elevated retreat. Appraised at $10.2M in 2022, the private road is now being widened and improved. To view the full video tour, search the property address on YouTube.