Architects have agreed to look again at plans for a school building on the edge of Hampstead Heath after concerns were raised about its proximity to a council estate.

Residents of Lissenden Gardens estate are worried that a new curved teaching block proposed for Parliament Hill School will block out light, and that they will be overlooked.

They raised the issues at a public meeting last week at the Highgate Road school, where architects pledged to review designs to see if it is possible to move the proposed block by a few metres.

The £22million redevelopment by Camden Council would give Parliament Hill, William Ellis School and La Swap sixth form consortium modern classrooms to replace 1950s buildings.

Highgate Green councillor Sian Berry said: “A bit of movement would be really useful. Both heads spoke about the importance of the buildings, which everyone agrees with, but it’s just the design and details that are the problem.”

Cllr Angela Mason, cabinet member for children, said: “This is an important project which will bring a significant improvement in educational facilities for Parliament Hill and William Ellis schools, as well as the La Swap sixth form.”