Michael Bloomberg, Sylvester Stallone and other notable names have spent the quiet months buying and selling on the East End.

The size of Michael Bloomberg’s estate makes his daughter’s new home seem relatively tiny by comparison. Built in 2012, her two-story home is still a very roomy 3,000 square feet.

It’s been a big week for Georgina Bloomberg — and she has so much more to come. Not only did the 41-year-old equestrian daughter of former New York City Mayor Michael Bloomberg take to ...