A tenant has added a garage to the side of his property. We agreed to the wooden structure as it was well within permitted development requirements. The property was originally one detached house but was split into 2 semi detached houses. The planners are saying that because the property has been subdivided the measurements for the garage are too wide as they can only take them from the subdivided part. However I understand original dwelling to be as it was built. Can anyone help clear this up? Thankyou