 Other possibilities, like in situ concrete, or encouraging individual low-rise construction, were discarded.During 1954–1961, engineer Vitaly Lagutenko, chief planner of Moscow since 1956, designed and tested the mass-scale, industrialized construction process, relying on concrete panel plants and a quick assembly schedule.During 1961, Lagutenko's institute released the K-7 design of a prefabricated 5-story building that became typical of the Khrushchyovka.