According to the Belgrade's first general urban plan, from 1924, the Belgrade Zoo and the new botanical garden were to be built in Topčider. The plan also envisioned forestation of Topčidersko Brdo and Senjak, formation of the new park and establishment of the continuous green area with the Topčider. Project started in 1926 while the Hyde Park was finished in the 1930s. International tender which was supposed to reconstruct Topčider by the standards of the then modern urbanism was halted by World War II.