New Special Schools For Thurrock Council New Physically Handicapped and Moderate Learning Difficulties Special Schools for Thurrock Council. Treetops Special School Replacement building from the relocation and expansion of Treetops Special School in Grays for a population of 200 pupils. Designed to enable support through to 19 with a residential respite centre on site. Beacon Hill Special School Designed to cater for the needs of Physically Handicapped pupils, this New School replaces the existing Woodacre School, Thurrock. The Schools have been designed together on one site to enable the joint use of key facilities such as Dining and Assembly.