A view up from the courtyard at 55 Warren, designed by OCV Architects and interior designer Leopold Rosati. (Courtesy Leopoldo Rosati)

Last week, we took a trip around the block from the AN office to go to an open house at 55 Warren hosted by Legrand, the French systems management company. While we were impressed with all the gizmos and glitzy gadgets, it was OCV Architect’s clever renovation of the old cast-iron building that grabbed our attention.

Check out the photos after the jump.