"Until now, we've never seen any national builder express interest in building in the New Orleans area," said Mr. Randon, the broker.

But now national builders with wide experience in the use of the tax-credit program, and completed projects to show the skeptics are entering the local market.

Five local builders and one national builder - Panitz Homes, a subsidiary of Beazer Homes, of Atlanta - are authorized to produce houses in the development.

Lincoln Properties, a national builder based in Texas, has built lightweight steel-stud or woodframe housing on decks above garages throughout the Southwest, for example.

Pulte Homes, a national builder, used to put in only vanities, said Sean Degen, vice president for architectural services.

The Schantz Organ Company of Orrville, Ohio is a major, national builder and restorer of the pipe organ.

Forest City, a national builder based in Cleveland, has already developed this residential form in San Francisco.

Now, KB coordinates the residential development, which includes a mix of homes by KB and Windward, another national builder.

"Ryland is the only national builder we truly like," she said.

Trammell Crow Residential, which was founded in 1978, is the second national builder to build luxury rentals on Long Island.