Morgan Stanley Legend’s $80M Upper East Side Fortress Sets New Manhattan Townhouse Benchmark
Former Morgan Stanley CEO John Mack and his wife Christy have listed their 16,000-square-foot Upper East Side mansion at 165 East 70th Street for $80 million. If sold at this price, it would surpass the 2019 record of $77.1 million for the most expensive Manhattan townhouse. The couple purchased the distressed carriage house in 2009 for $13.5 million and spent six years renovating it into a fortified, move-in-ready residence before retiring to North Carolina.