$44,500,000
Active150 Seaport Blvd., Unit GPH
Boston, MA 02210
Listed by The Sarkis Team at Douglas Elliman Real Estate - The Sarkis Team
Listing courtesy of The Sarkis Team, Douglas Elliman Real Estate - The Sarkis Team
Location
Open in MapsAbout This Property
Experience a new echelon of luxury living at The Grand Penthouse, the crown jewel of the St. Regis Residences. Encompassing over 10,000 sq ft across 2 dramatic levels, this one-of-a-kind home sits atop Boston's iconic Seaport, offering panoramic views of Boston Harbor and the city skyline through soaring floor-to-ceiling windows. Designed with extraordinary attention to detail, the residence features a double-height great room, a sculptural curved floating staircase with glass railings, and a grand foyer with an Italian marble radial inlay floor. Every element is curated for refined living and entertaining at scale. The outdoor living experience is equally extraordinary, including a custom infinity-edge pool with a clear acrylic bottom, and a retractable Libart International glass roof, and sweeping water views from every angle. Blending the privacy of a custom home with the legendary service of the St. Regis brand, The Grand Penthouse is a truly rare offering Boston has never seen.
Property Details
Key Facts
Property Type
Condo
Style
Cottage
Living Area
10,609 sqft
Rooms
12
Bedrooms
6
Bathrooms
9 (8 full, 2 half)
Construction
Exterior
Cedar
Basement
No Basement
Flooring
Slate
Garage Spaces
4
Systems & Utilities
Heating
Hot Water Baseboard, Geothermal
Cooling
Central Air
Water
City/Town Water
Sewer
City/Town Sewer
Financial
Taxes (2025)
$420,004/yr
HOA Fee
$22,930/mo
Price / Sqft
$4,195/sqft
MLS #
73383587
Days on Market
133

Sarina Steinmetz
617.610.0207Price History
Listed
Jan 28, 2026
$44,500,000
No price changes recorded.
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MLS #73383587
Listing information provided by MLS Property Information Network, Inc. (MLS PIN). Data last updated June 10, 2026. Information deemed reliable but not guaranteed. © 2026 Steinmetz Real Estate Professionals at William Raveis Real Estate. Equal Housing Opportunity.