royal randwick, known as alison road and then royal randwick racecourse during development, is located on existing park land adjacent to centennial park on alison road, opposite the racecourse. this required the construction of a new retaining wall approximately 200 metres long and three metres high together with increasing the height of an existing 1,100-metre long levee by up to 300 millimetres and the removal of approximately 50 established trees.