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luxurious penthouse in Boston's Seaport District has taken the top spot as the most expensive home for sale in Massachusetts, listed at $49.5 million. The six-bedroom unit at 150 Seaport Blvd. surpasses Blue Heron Farm, a Martha's Vineyard estate once owned by the Obamas, which is now priced at $39 million. Known as "The Grand Penthouse" of the St. Regis Residences, this condo spans over 10,000 square feet across two levels and boasts floor-to-ceiling windows offering breathtaking views of Boston Harbor and the city skyline.

    Designed with meticulous attention to detail, the residence features a double-height great room, a curved floating staircase, and an Italian marble radial inlay floor. The unit was built in 2022 and comes with a monthly HOA fee of $21,870.83 and a parking fee of $1,060. The outdoor living space is equally impressive, featuring a custom infinity-edge pool with a clear acrylic bottom and sweeping water views from every angle.

    The St. Regis Residences tower offers 24-hour concierge service and has previously seen one of the most expensive home sales in Boston after two units were combined and sold for over $20 million. This rare offering combines the luxury of a custom home with the legendary service of the St. Regis brand, making it a truly unique find in Boston's real estate market.