Madonna is suing after she was blocked from buying a neighbour's apartment in her luxury New York building. The Material Girl has filed legal papers in Manhattan Supreme Court against the board and management company at her Central Park West apartment block. Madge already owns a 6,000-ft duplex pad in the building, which boasts its own gym and beauty salon, but she also wanted to buy the one next door as well, to expand her living space. The summons accuses the co-op board and Midboro Management of breach of contract for allegedly holding up the sale of Julie Clark Thayer's seventh-floor apartment and orders the transfer of 868 co-op shares to the singer. She is seeking a court order allowing the sale to go through, as well as legal fees and expenses, according to the documents. Madonna, 49, moved into the building overlooking Central Park in the city's Upper West Side after she was rejected by the board at the nearby San Remo board in 1985. A spokeswoman for Madonna was unavailable for comment today. Picture: Janet Mayer