Pinebank Mansion was a Queen Anne style house sited on a hill overlooking Jamaica Pond in Boston, Massachusetts.

Built in 1868 by John Hubbard Sturgis, it was the only mansion retained by Frederick Law Olmsted in his plans for the Emerald Necklace park system.

After this burned down in 1868, Ned instructed his cousin and architect John Hubbard Sturgis to build the third Pinebank house.

[8] The memorial design chosen delineates the mansion's perimeter in granite, set flush with the ground, and the outline filled with grass.

The front of the house will be marked with a low brick, granite-topped wall that can be used as a bench, and up to three metal signs will contain information on the former building.