Can anyone help me with info about planning permission for change of use please. Currently my house is mixed use with a 2 room flat I live in upstairs which is classed as residential and downstairs is an office, kitchen and toilet which is classed as business offices. I own the house and want to get change of use for the downstairs back into residential - before the business use downstairs it was previously residential. My house is in a small village with one business next door (which used to be residential) and all other properties down my road are residential including 10 new builds opposite me which used to be a farm. Where do I start - I keep looking at different articles and I don't know how to apply. Do I need full planning permission? Do I need architects drawings etc or is it a case of just measuring out the square meterage of the business space we want to get change of use on? Any advice greatly appreciated thanks