I have recently had a prior notification approval refused for my rear extension. My garage is attached to the house and offset, thus providing a side wall to the proposed extension. Officer says that this is classed as a rear and side extension and therefore refused based on the build being more than half the width of the original property. Is this right? My property isn’t increasing in footprint width at all. Lots of neighbouring properties have added full width conservatories utilising the garage wall as a side wall in these.