The National Basketball Players Association will sell its Harlem building and move into 47,234 square feet in the Durst Organization’s 1133 Sixth Ave.

Arthur Mirante and Martin Cottingham of Avison Young represented the NBPA in the 21-plus-year lease, which had an asking rent in the mid-$70s per foot. The Durst Organization was repped in-house by Tom Bow and Rocco Romeo.

“We are bringing all the superstars to Midtown, and they will love it up here,” said Mirante, the Tri-State president of Avison Young. “We will have a world-class training facility in a former RCA recording studio.”

The training facility on the double-height fifth floor will include a basketball court, while the executive offices are part of the sixth floor.

“Now they will have a home and the excitement of being in New York and being able to work out in privacy in Midtown Manhattan,” Mirante said.

The NBA store is nearby on Fifth Avenue, while the players will also be able to easily attend or play their own games at Madison Square Garden and Barclays Center in Brooklyn.

The association is moving out of 11,000 square feet at 310 Lenox Ave., which is in contract to be sold to an investor. The 25,000-square-foot building is also the home of the Red Rooster Restaurant.

With Labor Day out of the way, summer deals are getting done. In a deal worth nearly $250 million, we’ve now learned Jeff Sutton and Bobby Cayre’s Aurora Capital has signed a 99-year lease for 511 Fifth Ave. on the southeast corner of East 43rd Street, sources said.

The 17-story building has been completely occupied by IDB Bank since the 1960s. Here, it has all 165,000 square feet for its headquarters and a bank branch with 65 feet of frontage along the increasingly valuable Fifth Avenue.

The building is also next to 509 Fifth Ave., where Sutton and Aurora also own the retail store now occupied by Skechers.

Bruce Mosler, David A. Green, Josh Kuriloff and Louis Wolfowitz of Cushman & Wakefield marketed the widely sought-after lease opportunity for three families.

None of the parties returned calls for comment.

Across the avenue, the development site at 520 Fifth Ave. was just sold to Ceruzzi Properties and Shanghai’s SMI USA for $275 million by Joseph Sitt.

Despite a family feud over their purchase, Raphael Toledano, president of Brookhill Properties, is scheduled to close Wednesday on 16 apartment buildings in the East Village with 301 rental units and 15 retail stores for roughly $97 million.

The buildings include Nos. 223, 229, 231-233 and 235 E. 5th St.; 228 E. 6th St.; 66 and 95 E. 7th St.; 27 St. Mark’s Place; 334 E. 9th St., 253 E. 10th St., along with 323-325, 327, 329, 510 and 514 E. 12th St.

The off-market deal was negotiated by Toledano directly with the sellers, the Tabak/Garfinkel families, with financing supplied by Josh Zegen’s Madison Realty Capital.

This has been an interesting year for Toledano, a 25-year-old who, unlike his contemporaries — who are renting apartments for their first job — is instead buying dozens of apartment buildings for himself.

He already paid $42 million for 125 W. 16th St. in Chelsea; $15.5 million for three other East Village buildings; and is in contract for 11 more for nearly $55 million.

But success has its detractors: Toledano was sued by his uncle, Aaron Jungreis of Rosewood Realty Group, who claims he is entitled to be in this deal. Jungreis didn’t return a call for comment.

Toledano said, “It’s not clear what motivated my uncle to file a baseless lawsuit against me, and we will not let these distractions deter us from continuing to grow our portfolio and follow through on our mission of providing a better quality of life for our residents in the East Village.”