Why would someone tear down a $2.1 million home in Boulder? To build this $7.5 million house, of course.

A luxurious estate in Boulder’s Knollwood neighborhood is on the market for $7.5 million.

The home sits on a 0.45-acre lot at 2135 Knollwood Drive and faces south so that its floor-to-ceiling windows can flood the main rooms with natural sunlight and take in Boulder Canyon and Flatirons, which are visible from nearly every window of the 5,075-square-foot home.

“It’s on the western edge of Boulder right above downtown,” said Tim Goodacre, owner of Goodacre & Company. “It’s private and quiet in the Knollwood subdivision with walking trails right above it.”

Annette Martin, a Boulder architect, designed this home that replaced one which was bought for $2.1 million in 2015.

The single-family property houses three bedrooms and five bathrooms and was built last year. Inside features oak floors and its hallmark centers around the living room.

“The living room expands to the deck, so it’s a true indoor-outdoor living space,” Goodacre said.