A developer has signed a multimillion pound contract to carry out work on the former Keymer Tiles site, in Burgess Hill.
Croudace Homes signed a contract for the re-profiling and ground improvement of the former site, in Nye Road, with engineering and specialist land remediation contractors, Hydrock.
This follows on from the demolition of the factory on the site.
The design and build contract will start immediately, and take approximately 12/18 months to complete.
The 19.2 hectare brownfield site includes a large pit of exhausted and the uneven ground.
Levels will require extensive re-levelling to create a surface suitable for 475 new homes.
Prior to work starting on site, Croudace has been working closely with Natural England and the Natural History Museum to protect and record ecology and paleontological features respectively.
Croudace Group Chief Executive, Russell Denness, said: “After months of careful preparation we are delighted to start works on this exciting project to bring a former industrial site back into new use and provide much needed new homes to suit all means.
“The earthworks to transform the clay pit into a site suitable for housing is a critical phase, and we are therefore very pleased to have Hydrock as our partner; their extensive knowledge, experience and capability in these types of projects is highly valued.”
Outline permission for a development of 475 homes on this site was given outline permission in 2010.
The more detailed planning application for the first 125 homes was given permission in June this year.