The New York City Landmarks Preservation Commission recently approved this 5-story, single family townhouse in the Upper West Side-Central Park West Historic District. The contemporary and contextual design draws inspiration from the district in utilizing a single material, limestone, to express a multitude of architectural features. The verdant character of the block on which it resides is continued inward in the form of integrated flower boxes along the facade and a continuous living wall that spans the full five stories of an open, centralized stair.