Coming in second place behind Corcoran is Halstead Property Development Marketing, with 2,241 units at 40 projects. That’s up from the No. 6 spot in 2011.

Halstead was buoyed by large projects including the 554-unit rental Gotham West in Hell’s Kitchen and 388 Bridge Street, the Stahl Organization’s 53-story tower that is Brooklyn’s tallest residential building.

Kliegerman said the firm hired three new project managers to keep up with demand and is pumping resources into its research department.

One of the challenges in a rising market, he said, is tempering his clients’ wide eyes.

“Clients have higher expectations and usually want to raise prices,” he explained. “Managing a client’s expectations in a bull market can be very difficult.”

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