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Ad #7799005

MLS #98988268

A one-of-a-kind opportunity to own one of Idaho's most iconic

21805 Koa Ln, Star, Idaho, 83669

$8,977,000

5Beds

7Baths

11,919Sqft

17.120Acres

About this property

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. Amenities include a full indoor regulation basketball court with viewing lounge, professional-grade pickleball court, remodeled upstairs lounge and poker room with second kitchen and statement wine room, state-of-the-art theater with seating for 12, and a wellness retreat featuring a commercial-grade gym with $70k+ in Rogue equipment and sauna. Outdoor living is unparalleled with a heated pool and spa, waterfall-edge features, private lakes, sandy beachfront, new dock, outdoor kitchen with Wolf grill and Traeger smoker, fire features, pergola lounges, fountains, and curated entertaining spaces throughout. An extraordinary blend of luxury, recreation, privacy, and natural beauty.

Property Features

5 Beds

7 Baths

11,919 Sqft

Built in 2015

17.120 Acres

2 Stories

(private lake, pond, creek)

On Waterfront

Garage, Driveway, RV

Siding: Frame, Stone, Stucco

Has Swimming Pool

Has Pond

Has Fireplace

Solar (Heating), Forced Air, Passive Solar

$19,694 / yr property tax

Canyon County

Not Applicable Community

Additional Photos

Contact Information

Matt Bauscher

Amherst Madison Treasure Valley, LLC

208-330-8515

Location

Listing Agent: Matt Bauscher (License #: SP40991) 208-330-8515
Broker: Amherst Madison Treasure Valley, LLC 208-924-4168 Listing Site
Copyright © 2026 Intermountain Multiple Listing Service. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

LakeHouse.com

Printed Jul 15, 2026

Photo Gallery

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A one-of-a-kind opportunity to own one of Idaho's most iconic - photo 44

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A one-of-a-kind opportunity to own one of Idaho's most iconic - photo 48

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$8,977,000

Beds

Baths

11,919

Sqft

21805 Koa Ln, Star, Idaho, 83669

By contacting this agent you agree to these Terms and Conditions.

Home Idaho (private lake, pond, creek)

MLS# 98988268

Home For Sale

A one-of-a-kind opportunity to own one of Idaho's most iconic

$8,977,000

21805 Koa Ln, Star, Idaho, 83669

Beds

Baths

11,919

Sqft

17.120

Acres

$8,977,000

21805 Koa Ln, Star, Idaho, 83669

5 Beds

7 Baths

11,919 Sqft

17.120 Acres

47 days

on LakeHouse.com

views

saves

Property Details

HOME DETAILS

5 Beds

7 Baths

11,919 Sqft

Built in 2015

17.120 Acres

2 Stories

WATER & VIEW

(private lake, pond, creek)

On Waterfront

EXTERIOR

Garage, Driveway, RV

Siding: Frame, Stone, Stucco

Has Swimming Pool

Has Pond

INTERIOR

Has Fireplace

Solar (Heating), Forced Air, Passive Solar

FINANCIAL & COMMUNITY

$19,694 / yr property tax

Canyon County

Not Applicable Community

See More Details

Location

Open in Google Maps

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Ad Statistics

Ad Number

7799005

Viewed

31 times

Listing Status

Active

Added

May 29, 2026

Last Refresh

Jul 15, 2026 12:57:22 PM

Listing Information

Data Source

Intermountain Multiple Listing Service

Source Property ID

98988268

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About this property

Property Features

Additional Photos

Contact Information

Location

A one-of-a-kind opportunity to own one of Idaho's most iconic

Property Details

HOME DETAILS

WATER & VIEW

EXTERIOR

INTERIOR

FINANCIAL & COMMUNITY

Location

Mortgage Calculator

Listing Information

Request Information

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