My parents' house had a small kitchen extension put on about 10 years ago. It's about 12 sq m. They now would like to put on another extension (a bedroom, utility and bathroom) at the rear of the house. The house is a bunglow in the country. My question is this: Does the original kitchen extension have to be included in the 40 sq m that are allowed without having to get PP? I read somewhere that after 7 years you have automatic retention of an extension???
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