In December 2005, Imperial announced a science park programme at the Wye campus, with extensive housing; however, this was abandoned in September 2006 following complaints that the proposal infringed on Areas of Outstanding Natural Beauty, and that the true scale of the scheme, which could have raised £110m for the College, was known to Kent and Ashford Councils and their consultants but concealed from the public. When did Imperial abandon their science park program?