Mr. Abramovich can now go ahead .
Mr. Abramovich can now create a mega-mansion out of the rowhouses at 11 - 15 East 75th Street between Fifth and Madison avenues , which are worth $78 million .
Mr. Abramovich can now go ahead and create a mega-mansion out of the rowhouses at 11 - 15 East 75th Street between Fifth and Madison avenues , which are worth $78 million .