PARIS.- Chez Isis was a haven of drinking and dancing in the Roaring Twenties. Customers came in droves, eager to let their hair down in its ground-floor restaurant, basement dance floor and upstairs in its no questions asked hotel. After the Second World War, it became Frances biggest betting shop until 1992, after which it was left to go to ruin. The building, in north Paris 18th arrondissement, was bought by the City of Paris in 2006, following a proposal by the Association des Amis de Magnum Photos, as the venue for the future LE BAL. Ten architects submitted projects in the competition to transform the site of LE BAL. The commission was awarded to Agence Search (Caroline Barat and Thomas Dubuisson). A young team with significant international experience, the agencys proposition is for a beautiful, functional architecture that will not dominate