45 Commonwealth #4 is a rarely available residence in doublewide boutique brownstone on 2nd block, sunny side of Commonwealth Avenue. This truly exceptional south facing home offers approx. 3,000+/- sq.ft.of living space on one level! The home's open concept design, presents a sophisticated elegance with a superb layout consisting of 3 bedrooms, 3.5 baths with family room and study. An abundance of natural light spans across 50' +/- of frontage overlooking the tree-lined Commonwealth Mall and Back Bay skyline. Attention to detail is evident with intricate millwork, custom cabinetry and many built-ins throughout. The living area sightline spans from the fireplaced living room, dining and family rooms through to the chef's kitchen w/island and breakfast bar. Each of the 3 bedrooms offer ensuite baths. Hardwood floors throughout. Direct elevator access to residence and 2 garage parking spaces