As of early September 2025, the most expensive Boston condo sales from August have not been widely reported with specific details. However, market reports from August and July highlight several key details and areas that likely saw the top luxury transactions. Midtown, the Seaport District, and Back Bay were confirmed as Boston’s most expensive neighborhoods for condos, and sales activity has been strong.

Based on recent 2025 market trends and limited available information, here are the details of the luxury condo market in Boston during August:

Most expensive neighborhoods: For the period from February to August 2025,
Midtown topped the list of most expensive neighborhoods with a median sale price of \$1,935,000. The Seaport District and Back Bay followed closely behind.
Highest price per square foot: The Seaport District remains one of the most exclusive and expensive areas, commanding the highest price per square foot in the city.
Key luxury developments: Condos in high-end developments such as the
EchelonSeaport and The Quinn in the South End likely contribute to the market’s most expensive sales. A corner unit at The EchelonSeaport, for example, was listed for \$2.25 million in August.
August sales activity: While specific sales data is limited, overall market activity remained strong. One confirmed sale was a penthouse at 129 Beacon Street in Back Bay for \$2,650,000, which sold on August 29, 2025.

Outlook for Boston’s luxury market

Persistent demand: Investor and buyer confidence remains high for top-tier properties, keeping Boston a resilient multifamily market.
Future reports: For specific, verified sales data, you may need to wait for real estate firms or publications to release their official market reports in the coming weeks.