Precast is new technology . But sobha does not have expertise to use it properly . Thre have been several incidenses in sda phase 1 which prove the bad quality of this project and leakage is a major issue in all the apartments. Sobha customer cell gives good response that they will fix it but it will never be fixed. It keeps reoccuring even after fix is done. Totally unsetisfied with my purchase. This brand value has proved to be a nightmare to me.