The real estate market in New York’s Hamptons has cooled from a frenzied pace, with the median sale price in the beachfront towns falling to the lowest in a year and a half.

In the three months through June, Hamptons homes sold for a median of $849,000, down 6.5 percent from the second quarter of 2014, according to a report Thursday by brokerage Douglas Elliman Real Estate and appraiser Miller Samuel Inc. Completed deals in the area, the favored summer retreat of Wall Street financiers, tumbled 16 percent to 590.

More owners are putting their homes on the market after a surge in demand pushed prices to a seven-year high in 2014. Listings at the end of June totaled 1,694, up 2.9 percent from a year earlier and higher than the six-year quarterly average of 1,571, the firms said. With increased choices in most price ranges, shoppers were able to take their time on deals.

“The intensity has slowed a bit,” said Jonathan Miller, president of New York-based Miller Samuel and a Bloomberg View contributor. “Any time you have a pronounced period of growth, which we had in 2014, that pulls in more inventory because sellers say, ‘Hey it’s time to sell.’”

At the current pace of transactions, it would take 8.6 months to sell all the homes on the market, up from 7.1 months at the end of June 2014, the firms said.

Sag Harbor

Julie Tatkon-Kent decided last year was an opportune time to try to downsize from the six-bedroom Sag Harbor home that she and her wife had custom-built in 1998. The Hamptons market had recovered from its recessionary lows, and there were signs that mortgage rates might climb.

“I knew those rates weren’t going to stay low forever,” said Tatkon-Kent, 58, a psychotherapist who runs a private practice from the house and plans to live in the area until the couple’s 15-year-old daughter finishes high school.

Working with broker Paul Brennan of Douglas Elliman, she listed the property, on a half-acre with a swimming pool, in June 2014 for $2.25 million, Brennan said. About a year later, she accepted an offer of $2.2 million, agreeing to whittle the price tag in exchange for being able to stay in the home through October, Tatkon-Kent said.

“The market is not moving at the pace that it was a year ago, but it’s still moving,” Miller said.

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