Atterbury died in 1956 at the age of 87 in Southampton Hospital. He is buried beneath a simple stone --which notes that he was an inventor architect--in a shady and secluded family plot. His father was a lawyer who became the general counsel for the Erie Railway and his maternal grandfather, Samuel Latham Mitchill, was a physician and politician. Mitchill was also a proponent of the construction of the Erie Canal, a project undertaken by his close friend, DeWitt Clinton, also buried in Green-Wood.
In 2008, Cottage Living Magazine ranked Forest Hills Gardens as the number one “cottage community” in the United States. And recent online postings can be found for tours of “Grosvenor Atterbury’s Forest Hills.”
Atterbury's former Manhattan residence was listed for sale in 2011at the staggering price of $38 million. Realtors generously said they would seal the deal for a cool $35million.