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1035 5th St, Boulder, Colo.

For sale: $4,250,000

This nearly all-glass house sits on a 3/4-acre lot, but when you consider the open stretch of land bordering the property line — all the way to the base of the Flatirons — it feels like a 100-acre setting.

“It has virtually 360-degree unobstructed views of the parks and the plains and the magnificent peaks of the Flatirons,” says listing agent Jane Stebbins of Goodacre Properties. “It’s really quite breathtaking.”

Designed by New York architect Thomas Phifer, the contemporary structure was built to blend into its surroundings.

Find more details and photos of the home on the Zillow Blog.

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