Built during Boston's golden age of brownstones and masterfully renovated in 2018, 21 Claremont Park offers 3,678sqft of refined South End living. This 4-bedroom, 4.5-bathroom home blends timeless charm with modern sophistication, featuring herringbone white oak floors and restored entry doors and bay windows. The parlor level showcases a marble fireplace and an open-concept layout leading to a glass curtain wall and west-facing deck. A custom Neolith kitchen includes a La Cornue gas range, waterfall island, concealed pantry, and 100-bottle wine chiller. The king-size primary suite offers heated floors and a steam shower. A garden-level family room with wet bar opens to an Intelliturf patio and two deeded, direct-access parking spaces. Steps from the Southwest Corridor Park, this single-family brownstone blends timeless charm with modern comfort.