In Manhattan, where she lived for five years on the Lower East Side, “I could barely find a one-bed in the same price range, with amenities that could compete,” she said. Her new rental has a washer/dryer, expansive city views and welcome perks, she said: “It’s my first apartment in New York with an actual coat closet, which is amazing.”

In spite of high demand for Brooklyn housing, the new supply remains heavily skewed toward luxury apartments. Overall, New York City had a rental vacancy rate of 3.63 percent, which qualifies as a housing shortage, according to the city’s latest Housing and Vacancy Survey. New York has remained below 5 percent rental vacancy since at least World War II, said Moses Gates, the director of community planning and design for Regional Plan Association, a nonprofit research and advocacy group.

But in the luxury segment, apartments priced at $2,500 or more had a vacancy rate of 8.74 percent, which was “at or approaching” a record high, Mr. Gates said. While the full survey, including a breakdown of Brooklyn vacancy rates, will not be released until summer, there already are signs of a shift at the top of the market, he said.

“We’re at or close to an inflection point, same as we were in 2007,” he said, referring to the recession, when luxury prices flattened and high-end development stalled.

Still, Brooklyn is sprawling, and some developers are testing markets farther afield. In South Williamsburg, the former 11-acre Domino Sugar refinery site includes 325 Kent, where more than half of the 522 units have been leased since last summer. The waterfront development is about a 15-minute walk to the nearest subway; the copper-and-zinc structure with a hollow doughnut core, developed by Two Trees Management and designed by SHoP Architects, has studios for $2,620 up to two-bedrooms starting at $5,520. (A leasing fact sheet on the premises recently offered a reduced rent, based on two months free for a 14-month lease.)

Pablo Marvel, 25, a co-founder of Nova Concepts, a real-estate marketing and tech firm that uses drone photography, moved into a studio apartment in the project in September. “I still feel like people think Manhattan is the epicenter of New York, which is simply not true,” he said. While his office is in the nearby Brooklyn Navy Yard, he said he uses the building’s waterfront common areas, complete with Ping-Pong and pool tables, as a satellite office. Kate Treen, a spokeswoman for the project, said about 40 percent of residents work from home.