Lovable Lesser-Known Landmarks: The blue belle of 9th Street
Eye On Real Estate
My Blue Heaven.
We start humming that Frank Sinatra tune every time we walk by the baby-blue manse with the mansard roof at 271 9th St.
The French Second Empire-style property is an important piece of pre-Civil War Park Slope architecture. Preservationists refer to as the William B. Cronyn House. He’s the Wall Street merchant who built it in 1856-1857.