Lucien Sproviero

Senior Associate, Marcus & Millichap

Every year, the number of frontier neighborhoods in New York City seems to shrink, block-by-gentrified block.

But there are still a few spots left — even in coveted Brooklyn — for the shrewd operator looking to make a name for himself.

Enter Lucien Sproviero, a senior associate at Marcus & Millichap, who, at only 26, has invaded Bed-Stuy, Crown Heights, Lefferts Gardens and Prospect Heights, selling more than 40 buildings amounting to more than $100 million in business, since he joined the firm in 2011.

“Manhattan gave off that it was not an emerging market,” Mr. Sproviero said. “It was already established. Brooklyn, on the other hand, had room to grow.”

Mr. Sproviero, a Connecticut native, holds a bachelor of science degree in business administration and entrepreneurship from Rider University and has a client base that is a mix of private-equity investors, dipping their toes in multifamily, mixed-use and retail operations. Just this June, Mr. Sproviero sold a four-property, 124-unit portfolio in Crown Heights that closed for $25 million.

The only whiff of scandal around this young prince of Kings County (who in 2013 got his firm’s Brooklyn Shooting Star award) is that Mr. Sproviero doesn’t live in Brooklyn. He lives in Manhattan.

“This is an ongoing thing,” Mr. Sproviero admitted. “My girlfriend and I are about to move in together. She likes Manhattan. I like Brooklyn.” Some day, Lucien, some day.— M.G.