How to read a planning certificate? A planning certificate is intended to inform a purchaser about town planning rules and restrictions that apply to a property. In practice, it doesn’t achieve this. This is because: ­The actual rules that apply aren’t included in the certificate ­ just the name of applicable controls, which for most users won’t mean much (or in some cases, are even misleading). ­You need a bit of background knowledge to understand the terminology in the certificate. […]