 En Route to the New City" published in the USSR in 1966 (although the concept of the "new element" has been dated to 1959); the book was later published as "The Ideal Communist City" in the United States, United Kingdom and Italy.According to the book, the optimal apartment size was about 600 square feet (56 square metres), with one bathroom and two bedrooms.Single-family homes were considered "too 
autonomous".