Off market since Jul 2026

The Story

21805 Koa Lane

Star, ID 83669 · Home

A one-of-a-kind opportunity to own one of Idaho’s most iconic legacy estates. Privately positioned behind the gates of an exclusive waterfront enclave, this extraordinary 17.5-acre property offers over 1,200 feet of Boise River frontage, more than 2,400 feet of private lake frontage, and unmatched privacy bordered by protected state land. Encompassing nearly 12,000 sq ft with 6,000+ sq ft of covered outdoor living and 4,200+ sq ft of garage space, the residence was designed for year-round entertaining and resort-style living. Extensive renovations completed between 2024-2026 introduced designer finishes, custom stonework, and dramatic walls of glass with water views from every room. …


Facts & Features

Property Info

Price
$8,977,000
Completion Year
2,015
Living Space
11,919 sq ft
Bedrooms
5
Bathrooms
7
Garage
16 spaces
Lot size
17 acres

Features & Amenities

Pool

Yes

Garage / Parking

16 spaces

Fireplace

Yes

Cooling

Central Air

Heating

Forced Air, Passive Solar

Appliances

Range, Oven, Dishwasher, Disposal, Double Oven, Microwave, Refrigerator, Water Softener Owned, Gas Range

Flooring

Hardwood

Lot Information

Garden, Views, Wooded, Waterfront

Water Source

Well

Sewer

Septic Tank

Listing Broker

Amherst Madison

Broker Name

Amherst Madison

Agent

Matt Bauscher