A Back Bay townhouse at 59 Commonwealth Ave. sold for $21 million.
According to a Boston Globe report, Maggie Gold Seeling, founder of the boutique luxury real estate firm MGS Group Real Estate, confirmed on Tuesday, Dec. 23, that the listing is the highest-priced sale for a private residence in Boston this year.
The property is a 1910 single-family townhouse with more than 11,000 square feet of living space, eight bedrooms, and eight full baths. It features restored architectural details, multiple private patios and decks, elevator access to all floors, and an attached garage…