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21805 Koa Lane Star, ID 83669
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Key Details
Property Type Single Family Home
Sub Type Single Family w/ Acreage
Listing Status Sold
Purchase Type For Sale
Square Footage 11,919 sqft
Price per Sqft $646
Subdivision 0 Not Applicable
MLS Listing ID 98994369
Sold Date 10/01/26
Bedrooms 5
HOA Fees $83/ann
HOA Y/N Yes
Abv Grd Liv Area 11,919
Year Built 2015
Annual Tax Amount $19,693
Tax Year 2025
Lot Size 17.120 Acres
Acres 17.12
Property Sub-Type Single Family w/ Acreage
Source IMLS 2
Property 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.
Location
State ID
County Canyon
Direction Use Google Maps to get to the location address. From Downtown Star, Continue West on Highway 44, S on Bent Ln, SE on Castagnola Ln, Then S on Chateau Ct.
Rooms
Family Room Main
Primary Bedroom Level Main
Master Bedroom Main
Main Level Bedrooms 5
Bedroom 2 Main
Bedroom 3 Main
Bedroom 4 Main
Living Room Main
Kitchen Main Main
Family Room Main
Interior
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
Heating Forced Air, Passive Solar
Cooling Central Air
Flooring Hardwood
Fireplaces Type Three or More, Gas
Fireplace Yes
Appliance Dishwasher, Disposal, Double Oven, Microwave, Oven/Range Built-In, Refrigerator, Water Softener Owned, Gas Range
Exterior
Garage Spaces 16.0
Pool In Ground, Pool, Private
Community Features Single Family
Waterfront Description Waterfront,Lake,Pond,River
Roof Type Architectural Style
Porch Covered Patio/Deck
Attached Garage true
Total Parking Spaces 16
Private Pool true
Building
Lot Description 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
Faces Use Google Maps to get to the location address. From Downtown Star, Continue West on Highway 44, S on Bent Ln, SE on Castagnola Ln, Then S on Chateau Ct.
Sewer Septic Tank
Water Well
Level or Stories Two
Structure Type Frame,Stone,Stucco
New Construction No
Schools
Elementary Schools Mill Creek
High Schools Middleton
School District Middleton School District #134
Others
Senior Community Yes
Tax ID R34035010B0
Ownership Fee Simple
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