Welcome to the Los Angeles Tall Buildings Structural Design Council world-wide-web home page. The Los Angeles Tall Buildings Structural Design Council formed in 1988 is a nonprofit organization whose members are those individuals who have demonstrated exceptional professional accomplishments in the structural design of tall buildings. The Los Angeles Tall Buildings Structural Design Council is a liaison organization to the Council on Tall Buildings and Urban Habitat, an international nonprofit organization of architects, engineers, planners, developers, and other professionals involved in the design, construction and operation of tall buildings.