Living on the top floor of a historic townhouse has its advantages and trade-offs. Atop a 20-foot-wide brownstone at 117 Park Place in Park Slope, this one-bedroom co-op is a walk-up, but a private rooftop terrace makes the climb worthwhile. Asking $1,175,000, the pre-war home has plenty of historic warmth, like a wood-burning fireplace, with modern updates for livability.

In the living room, an open layout maximizes top-floor sunlight. Design details like exposed brick, a skylight, and a wood-burning fireplace add to its all-season charm. The living room opens directly onto a private deck with views of the city skyline and surrounding neighborhood gardens.

The living room flows into the bright, renovated kitchen. A skylight illuminates warm brick walls and Carrara marble worktops. The

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