Richard A. Snowden confirmed Tuesday he is selling the group of properties to an unidentified Rochester investment group. The deal includes more than $3 million for his home, the historic Miller Mansion, at 175 Nottingham Terrace.

It would mark the highest sale price for a single-family home in Buffalo history. It would also set a record for residential sales for Western New York, where only eight homes have sold for $1 million or more since 1999, according to records kept by the Buffalo Niagara Association of Realtors.

“We got more than we were asking for the house, which I think reflects the significant amount of time and money we’ve put into the property to bring it back to its majestic glory,” Snowden said.