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About This Home

This 5-bedroom, 7-bathroom single family at 21805 Koa Lane in Star, ID is listed for $8,977,000 ($753 per sqft). Built in 2015, the home offers 11,919 sqft of living space on a 17.12 acres lot.

Agent Description

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.

Key Features

  • Built in 2015
  • 17.12 acre lot
  • 2 stories
  • 16 parking spaces
  • Private pool
  • Fireplace

Property Details

2 stories
7 full
16 spaces
2015

Amenities

PoolFireplaceWaterfrontSpaHardwoodA/CRV Parking

Monthly Cost Estimate

$49,011/mo

20% down · 6.5% · 30 years

Principal$6,492
Interest$38,900
Insurance$2,618
HOA$1,000

Estimates only. Actual payments may vary.

Location

21805 Koa Lane

Star, ID 83669

0 Not Applicable

Features & Amenities

Interior Features

Bath-MasterBed-Master Main LevelGuest RoomSplit BedroomDen/OfficeFamily RoomGreat RoomSauna/Steam RoomRec/BonusTwo KitchensTwo Master BedroomsWalk-In Closet(s)Walk In ShowerBreakfast BarPantryKitchen IslandQuartz Counters

Property Details

Flooring

Hardwood

Construction

Frame Stone Stucco

Pool Features

Patio

Parking

DrivewayRVGarage

Heating

Forced AirPassive SolarSolar (Heating)

Cooling

Central Air

Appliances

DishwasherDisposalDouble OvenMicrowaveOven/Range Built-InRefrigeratorWater Softener OwnedGas Range

Questions & Answers

This 5-bedroom, 7-bathroom single family at 21805 Koa Lane is listed at $8,977,000 ($753/sqft). The estimated monthly payment is $39,900 based on 20% down at 6.5% interest.

HOA fees are $1000/month.

Key features include: Built in 2015, 17.12 acre lot, 2 stories, 16 parking spaces, Private pool, Fireplace. Interior Features: Bath-Master, Bed-Master Main Level, Guest Room.

This property is listed by Matt Bauscher and can be reached at 2083308515 or matt@bauscherrealestate.com.

MB

Matt Bauscher

Agent at Amherst Madison

(208) 330-8515

Listed by Amherst Madison · View on Broker Site

MLS# 98988268· Source: listhub· Updated 3 days ago

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.

21805 Koa Lane, Star, ID 83669

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