Home  /  21805 Koa Lane Star ID 83669 MLS #98988268
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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 Details

Price:
$8,977,000
MLS #:
98988268
Status:
Active
Beds:
5
Baths:
7
Type:
Single Family
Subtype:
Single Family w/ Acreage
Listed Date:
May 29, 2026
Finished Sq Ft:
11,919
Total Sq Ft:
11,919
Lot Size:
745,747 sqft / 17.12 acres (approx)
Year Built:
2015
WaterfrontLakefrontWoodedPoolMiddleton School District #134Mill CreekMiddleton JrMiddleton

Schools

School District:
Middleton School District #134
Elementary School:
Mill Creek
Middle School:
Middleton Jr
High School:
Middleton

Interior

Above Grade Finished Area
11919
Appliances
Dishwasher, Disposal, Double Oven, Microwave, Oven/Range Built-In, Refrigerator, Water Softener Owned, Gas Range
Cooling
Central Air
Flooring
Hardwood
Heating
Forced Air, Passive Solar
Interior Features
Bath-Master, Bed-Master Main Level, Guest Room, Split Bedroom, Den/Office, Family Room, Great Room, Sauna/Steam Room, Rec/Bonus, Two Kitchens, Two Master Bedrooms, Walk-In Closet(s), Walk In Shower, Breakfast Bar, Pantry, Kitchen Island, Quartz Counters
Levels
Two
Main Level Bathrooms
6
Main Level Bedrooms
5

Exterior

Attached Garage YN
1
Construction Materials
Frame, Stone, Stucco
Covered Spaces
16
Garage Spaces
16
Lot Features
10 – 19.9 Acres, Dog Run, Garden, Irrigation Available, Views, Borders Public Owned Land, Chickens, Flood Plain, Wooded, Auto Sprinkler System, Drip Sprinkler System, Full Sprinkler System, Irrigation Sprinkler System
Open Parking YN
1
Parking Features
Attached, RV Access/Parking, Garage (Drive Through Doors), Finished Driveway
Parking Spots
16
Parking Total
16
Patio And Porch Features
Covered Patio/Deck
Roof
Architectural Style
Security Features
Alarm
Spa Features
Hot Tub/Spa, Bath
Waterfront Features
Waterfront, Lake, Pond, River

Financial

HOA Fee
$1,000
HOA Fee Frequency
Annually
Tax Year
2025
Taxes
$19,694

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