If you design some of the most stylish and beautiful modern houses in the Los Angeles area, including many for celebrityclients, how do you ensure that the projects are built to the standards you, and your patrons, demand? If you're the highlysought-after firm of Marmol Radziner + Associates, you do what an increasing number of practices are doing: becomeyour own contractor, building your projects with the same rigor and beauty with which they were designed, and, in theprocess, remake your firm into one of the most visible and successful design-build firms in the country.