Russian billionaire Roman Abramovich started assembling his $78 million trio of Upper East Side townhouses at 11-15 East 75th Street back in January of 2015, but it wasn’t until this past March that he first released his proposal to combine the townhouses into a giant mansion. The Department of Buildings rejected his initial, $6 million proposal, which called for “an 18,255-square-foot mansion with a six-foot front yard, 30-foot backyard, and pool in the cellar,” as 6sqft previously reported… (View original article)