PARIS (AP) Builder William J. Leavitt has introduced a second project in his campaign to make American-style in dividual ¢homes the French fashion. _ Another 600-house community is under way as Lesigny, about 25 kilometers east of Paris. It is being phased in ,at the same time that the last handful of the first 600 Levitt houses wn France, at Mesnil-Saint-Denis west of Paris, are being finished. 7 Levitt France, subsidiary of Levitt Sons, Inc. itself now a subsidiary of the International Telephone Telegraph Cor poration, supplies only an insig nificant share of the total French housing market. But his associates credit Mr. Lecitt with popularizing the idea of a single house with a yard in this country where housing has been in a crisis for 50 years. Many suburban developments are five stories high — without eleva tors. “ Mr. Levitt told a news con ferences that the new houses are the ss as he builds in the Unite tates except for ma terials and certain alterations, to conform to French norms. Design variations, along with other factors, make the French homes cost 25 per cent more than their American counter parts — even though floor space is slightly smaller. Low labor productivity is another cost-raising factor, Mr. Levitt said, although he said his own training program has, brought improvements over the initial project.’