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Recreational Land with Home for Sale in Star, Idaho

21805 Koa Ln, Star, ID 83669

$8,977,000
17.1 acres
Active sale
ago
Est $44,707/mo

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.

11,919
Sq feet
5
Beds
7
Full baths
2015
Built

Location

Street address
21805 Koa Ln
Zip code
83669
School district
Middleton School District #134
Elevation
2,454 feet
Coordinates
43.6836, -116.5137

Directions

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.

Property details

Acreage
17.12 acres
MLS #
IMLS 98988268
Posted

Property taxes

2025
$19,694

Expenses

Homeowner Association Fee
$1,000 annually

Parcels

  • R34035010B0

Legal description

Details and features

Listing

Type
Residential

Lot

Waterfront
Lake, Pond, Waterfront
Features
10-19.9 Acres, Auto Sprinkler System, Borders Public Owned Land, Chickens, Dog Run, Drip Sprinkler System, Flood Plain, Full Sprinkler System, Garden, Irrigation Available, Irrigation Sprinkler System, Views, Wooded

Exterior

Parking Spaces
16
Parking
Driveway, Garage, RV
Pool
Patio
Hot Tub
Yes

Structure

Stories
2
Water
Well
Sewer
Septic Tank
Heating
Forced Air, Passive Solar, Solar
Cooling
Central Air
Materials
Frame, Stone, Stucco

Interior

Rooms
Bathroom x 7, Bedroom x 5, Den, Family Room
Flooring
Hardwood
Appliances
Dishwasher, Disposal, Double Oven, Gas Range, Microwave, Oven/Range Built-In, Refrigerator, Water Softener Owned
Features
Bath-Master, Bed-Master Main Level, Breakfast Bar, Den/Office, Family Room, Great Room, Guest Room, Kitchen Island, Pantry, Quartz Counters, Rec/Bonus, Sauna/Steam Room, Split Bedroom, Two Kitchens, Two Master Bedrooms, Walk in Shower, Walk-In Closet(s)

Property utilities

CategoryTypeStatus
PowerSolarConnected

Nearby schools

NameTypeDistrict
Mill CreekElementaryMiddleton School District #134
Middleton JRMiddleMiddleton School District #134
MiddletonHighMiddleton School District #134

Listing history

DateEventPriceChangeSource
May 29, 2026New listing$8,977,000IMLS
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Payment calculator

This 17.12-acre property is located at 21805 Koa Ln in Star, ID 83669. The property is available for sale for $8,977,000. It has a 11,919 sq ft 5 bedroom, 7 bath house built in 2015.

Listed by Amherst Madison, (208) 924-4168

Checked 1 hour agoUpdated Source

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