Welcome to the penthouse at 323 Comm Ave, the newest crown jewel in Back Bay. Spanning 4 levels & accessed by private elevator, this home masterfully combines privacy & scale of a single family w/ ease & sophistication of condo living. The living/dining area is defined by high ceilings & an impressive 28-ft frontage, offering natural light & architectural detail throughout. The chef’s kitchen includes Sub-Zero/Wolf appliances & oversized island that seamlessly connects to the family room. Just beyond, a pantry & powder room for added convenience. The living room offers multiple seating areas w/ space for 8+ person dining table. The primary suite is complete with a large dressing room + spa-caliber bath w/ dual vanities, marble finishes & full wet room. Three additional beds offer grand proportions & abundant closet space, while a bonus room w/ front-facing balcony lends perfectly to home office or 5th bedroom. Complete w/ a full walk-out headhouse, private roof deck & 2 heated parking.