de Witt Consulting were engaged by John Holland Group (JHG) to supply all surveying services associated with the construction of the John Hunter Hospital Southern car park extension. The scope of the survey included the establishment and installation of site control which involved aligning the proposed design with the existing car park structure to the north, set out of all piles and concrete columns, set out for the car park landings and the ramps connecting the various levels of the structure as well as the completion of the compliance documentation required by JHG to allow the project handover.