150 Seaport Blvd Unit Gph, Boston, MA
6 bd · 10 ba · 10,609 sqft Condo listed at $44,500,000, built in 2022 in the South Boston Waterfront neighborhood.
About this home
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
- Price
- $44,500,000
- Bedrooms
- 6
- Bathrooms
- 10
- Interior
- 10,609 sqft
- Price / sqft
- $4195
- Year built
- 2022
- Type
- Condo
- Days on market
- 328
- Est. property tax
- $534,000/yr · $44,500/mo · 1.2% MA avg
- HOA
- $22,930/mo
Estimated monthly payment
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Price history
▼ 10.1%Most recent change on 2026-01-28: $49,500,000 → $44,500,000.
- Jan 28, 2026$44,500,000Price change
- Jun 2, 2025$49,500,000Initial list price
Location
This home is located in Boston, MA. Browse more Boston listings on the Boston market page or explore the full Boston market report.
About Boston: Boston is the capital and most populous city of the U.S. state of Massachusetts. It serves as a cultural and financial center of New England, a region of the Northeastern United States. Boston has an area of 48.4 sq mi (125 km2) and a population of 675,647 as of the 2020 census, making it the third-most populous city in the Northeastern United States after New York City and Philadelphia. The larger Greater Boston metropolitan statistical area had a population of 4.9 million in 2023, making it the largest metropolitan area in New England and the eleventh-largest in the United States. (source: Wikipedia)
Climate: Average year-round temperature is 52°F with 203 dry days per year and 46.9 inches of annual rainfall.
Home Intelligence
Neighborhood (zip 02210)
This neighborhood is highly educated (41% hold a bachelor's degree) and is primarily renter-occupied (24% owner-occupied). Median age is 37.4; median household income is $179,643.
- Median income
- $179,643
- Median age
- 37.4
- Owner-occupied
- 23.5%
- Bachelor's degree
- 40.9%
- Census median home value
- $1,136,700
Source: US Census Bureau American Community Survey 5-year estimates.
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