Government cuts have taken their toll on the money local schools have to repair and decorate their classrooms and buildings.
Local Lib Dems have proposed a new "schools bonus", requiring developers to pay an amount into a special fund when they get planning permission. This can then be used by schools to maintain and improve their infrastructure.
Merton Council is currently looking at putting in place new planning rules so it's a good time to suggest new ideas, but Labour and Conservative councillors don't seem to have any.
Local campaigner and parent Anthony Fairclough said:
"Our local area desperately needs some new ideas and a fresh start. I'm so pleased to back this schools bonus - a great idea to give back to the community. Everyone deserves the best start in life and a top quality education. Ideas like this would help teachers provide a great environment for learning".