Rare to find a 3 BR unit as wide as this one, in a 2 unit building in Charlestown! This gorgeous 3BR/2BA penthouse duplex features an expansive open layout with soaring ceilings, hardwood floors, exposed brick, and a sunny front to back exposure. Enjoy elegant living space with arched marble mantel w/herringbone tile accent, a dedicated dining space, and a spacious kitchen with stainless appliances, quartz countertops, a large island, bar area w/wine refrigerator, and a private deck, perfect for entertaining. A full bath w/shower and laundry is also on the main level. The top floor consists of the primary bedroom w/marble mantel & generous closet space; a large second bedroom, a nursery/office with vaulted skylight and exposed brick, and a beautiful full bath w/glass enclosed marble shower, separate claw foot soaking tub, Carrera vanity, and beadboard wainscoting. Gas heat and 3 Mini split ACs. Sellers have rented a local parking spot for the past 3 years.