Plans to extend a “historical” school in Hayes onto protected greenbelt land to keep up with demand are set to be backed by councillors.

Baston House School in Baston Road has applied for permission to demolish sheds and remove portable buildings so it can build eight new classrooms to allow for extra pupils.

The cottages at the site have been used for education since it was opened as an independent school for girls in 1933.

Baston House is now a specialist school for young people on the autistic spectrum, currently rated as ‘good’ school by Ofsted.

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Officers at the council have earmarked the plans for approval at a meeting next week.

In a report to councillors, they explain: “In view of the siting, height and design of the development it is not considered that the proposal would have a significantly harmful impact on the openness of the Green Belt and the purposes of its designation.

“The proposal would allow the expansion of an existing specialist school facility and the enlargement of existing schools which serve a local need.”

It comes despite complaints from neighbours that a bigger school will lead to more traffic problems along Barnet Wood Road.

This is the second time the school has applied for planning permission, with a previous attempt thrown out.

The school said the expansion onto protected open land should be allowed because of special circumstances, adding it will help keep up with demand for pupil places.

The school said in a submitted statement: “The school, due to its specialist nature in educating young people on the autistic spectrum, is currently working with eight south London local authorities and is in much demand.

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“Currently operating with 80 young people, the school is looking to expand its provision by a capacity of 30 to allow more young people to benefit from such a service.

“The school wants to extend into an area currently used as sheds and a garden, bulldozing a derelict groundsman shed – not affecting the existing, historical buildings.”

A decision will be made next week.