There will be 150,000 new homes in Sydney in four years. More than 200 suburbs will get none of them Weâre sorry, this service is currently unavailable. Please try again later. Dismiss Save Normal text size Advertisement More than 150,000 dwellings are forecast to be built across Sydney in the next four years but more than a quarter of the cityâs suburbs will be untouched by the development. NSW Department of Planning forecasters estimate between 132,800 and 171,200 new homes will be built in Sydney by 2025, reflecting continued uncertainty due to COVID-19. But no new homes are forecast to be built in 223 Sydney suburbs.