DfE announcment on 29th May 2019:

Schools will benefit from an extra £50million to improve facilities and create more good school places for children with special educational needs. The Government also announced a further £680million to create 40,000 new good school places.

https://www.gov.uk/government/news/multi-million-pound-investment-in-state-of-the-art-facilities-for-children-with-special-educational-needs