Medford penthouse with 12,000-square-foot terrace on sale for $4.7M

The approximately 7,700-square-foot penthouse at 3920 Mystic Valley Parkway in Medford includes a 12,000-square-foot terrace.

That is nearly 20,000 square feet, then, of living and lounging space in a single unit—which is probably why the Keller Williams listing calls it “the biggest penthouse in the Greater Boston area.”

Unsurprisingly, the price is big too: $4.68 million.

The 12th-floor palace includes three bedrooms, three and a half bathrooms, and a sunroom off that mega-terrace. The price also covers six parking spaces, the building’s luxury amenities, and pretty sweet views of Boston.