The Sand Dollar House, a distinctive 2,240-square-foot residence in Lakeway, Texas, built in 1979 by Frank Lloyd Wright protégé John Covert Watson, is currently listed for $1.99 million. This three-bedroom, two-bathroom house, also known as "The Mushroom House" due to its unique shape, was originally designed for artist Eugenia Hunt as a second home and is characterized by a circular, fan-shaped roof and biomorphic architecture. From above, the roof resembles a sand dollar, which inspired one of its monikers.

The current owners, Karena Dawn and Bobby Goldstein, co-founders of the fitness company Tone It Up, acquired the property in 2021. While they updated the deck, the interior largely retains its original design. The home is constructed from steel and gunite, a material commonly used in swimming pools, contributing to its curvy facade and interior. It features petal-shaped skylights, round windows, and various outdoor spaces including covered terraces overlooking Lake Travis.

Inside, the residence boasts a living room with floor-to-ceiling glass offering panoramic lake views and an arched, kiva-style fireplace. Other notable features include a swooping built-in banquette in the dining area, a wet bar, a U-shaped kitchen with 180-degree views, and a spiral staircase. The primary bedroom includes an arched fireplace and curved ceiling, while its en-suite bathroom channels Antoni Gaudí's style with a curved dual sink, soaking tub with emerald green tiles, and a large circular window that opens for fresh air. Michelle Jones and Todd Grossman of Compass hold the listing for this property, which is located just outside Austin, known for its golf courses and marinas, and offers significant privacy despite its proximity to a main road.