A 63-unit condominium community in South End, Boston.
Market figures reflect closed sales over the last 24 months. Data sourced from MLS PIN.
The Cosmopolitan is a boutique collection of 63 newly constructed luxury condominiums in Boston's South End, created through the reimagining of the former Church of the Immaculate Conception, originally built in 1850. This adaptive reuse project preserves a landmark structure while delivering contemporary residences ranging from one to three bedrooms. Over the last 24 months, the association has recorded a median sale price of $730,000, roughly $885 per square foot, with homes moving in an average of 27 days on market.
Based on the listing descriptions, residents at The Cosmopolitan enjoy:
HOA fees at the association range from approximately $597.77 to $1,644 per month, reflecting the variety of unit sizes and layouts within the building.
The Cosmopolitan offers one-, two-, and three-bedroom floor plans, giving buyers meaningful flexibility within a single boutique building. One-bedroom residences are frequently configured with 1.5 baths and open-concept living spaces designed to maximize natural light—several listings highlight sun-filled interiors facing East Concord Street. The upper floors are especially distinctive: the penthouse residences built into the 6th and 7th floors take advantage of the former church's architecture, offering unique, one-of-a-kind floor plans that set them apart from typical new construction. Many homes are positioned near the courtyard, fitness center, or elevators, and private balconies—some covered—extend the living space outdoors.
Situated in Boston's vibrant South End, The Cosmopolitan places residents in one of the city's most walkable and characterful neighborhoods. The building's balconies overlook picturesque East Concord Street and a peaceful interior courtyard, offering a quiet retreat within an active urban setting. The combination of new-construction finishes, historic architecture, available garage parking, and a South End address positions The Cosmopolitan as a compelling value for buyers seeking modern luxury without sacrificing neighborhood character.
Justin Rollo is a Massachusetts real estate expert with over a decade of experience and hundreds of South Shore transactions. He tracks every sale, pending, and price movement inside The Cosmopolitan — so whether you're buying into the community or thinking about selling, you're working with someone who knows this specific association inside and out.
Ask Justin about The Cosmopolitan →Over the last 24 months, units at The Cosmopolitan sold at a median of $730,000, about $885 per square foot.
Monthly condo fees at The Cosmopolitan currently range from roughly $597.77 to $1644, depending on unit size and what the association's master policy covers.
The Cosmopolitan is a 63-unit condominium association in Boston, MA.
Recent sales at The Cosmopolitan averaged about 27 days on market, with 3 closings in the period.