There is a confirmed outbreak of norovirus at Dearham Primary School.
Public Health England are investigating the outbreak.
Allerdale Borough Council's development panel meet at 1pm in the Wave Centre, Maryport at 1pm this afternoon.
Nearly four hundred objections have been lodge by villagers who say that the scheme, submitted by Persimmon Homes is unworkable. Residents say that expansion on the scale proposed will put unreasonable pressure on roads, drains and sewers.
Locals also ay that the primary school is already over-subscribed and that children would be forced to catch buses to neighbouring villages.
Persimmon would have to pay the school £341,000 in order to allow it to expand as a condition of approval, but a survey into the cost of four new classrooms estimates that the cost of building would be £566,000.