What does $11.9M buy in Star? Three ponds, two pools and a ‘one-of-a-kind’ estate

An under-construction Star home “redefining” luxury real estate in the Treasure Valley is scheduled to return to the market on Monday — resetting the top of Ada County’s high-end housing market in the process.

The Riverland Estate promises 10.5 acres, three natural ponds, two swimming pools and a 14,000-square-foot home tucked by the Boise River in Star’s Stonebriar subdivision.

At $11.9 million, it's the most expensive new home for sale in Ada County — and the most expensive new home that selling agent Carissa Pinnix has seen in the region.

“It’s one of the coolest properties I have personally ever seen,” Pinnix, owner of Selling Boise Real Estate, told the Idaho Statesman in an interview. “I do think it’s redefining luxury in the Treasure Valley.”

Eight-figure properties exist in the Boise area, Pinnix said, but most are custom homes or established estates. It’s rare to see a new home at this price built on spec, but that’s what Meridian builder Iron Oak Homes is doing here.

The home, which has a Meridian address, fronts the Boise River in a small, well-heeled subdivision between Idaho 16 and South Star Road.

The riverfront location, Pinnix says, makes it “one of a kind.”

“When you’re on the property, you feel like you’re in the mountains, in the middle of nowhere,” she said. “Then, you pop out, and you’re seven minutes from Costco.”

Inside, the home itself boasts a theater room, an indoor basketball court and a golf simulator. Outside, there are two pools: a heated infinity-edge main pool (with a hidden 28-foot slide) and a private pool and cold-plunge accessible off the primary bedroom suite.

Iron Oak is still framing the house, Pinnix said, but she’s seen surprising interest from buyers. The estate has gotten “more traction” than her $2 million to $3 million homes, she said.

“I think it shocked all of us to see the activity at this price point,” she said. “Obviously, it’s a niche market — but I think there’s a market for it.”

The luxury market is also growing at slightly lower price-points, with large-lot homes in Eagle increasingly running $7 million or $8 million, Pinnix told the Statesman.

Still, it’s rare to see houses in that echelon change hands: Just two Ada County homes (one new, one existing) sold for $5 million or more through the first six months of 2026, according to data from the Intermountain Multiple Listing Service, a real estate clearinghouse.

While the Riverland Estate is the priciest home hitting the market in Ada County, it’s not the most expensive for sale in the Treasure Valley. That’d be Parma Lodge and Stables, 450 acres of hunting, horse and crop land about 45 minutes from Boise. Represented by ranch brokers Hall and Hall, the multi-building stable property and its 9,000-square-foot owners lodge are listed for $22.5 million.