Change of use to small residential care home (C2 use) for a maximum of 6 residents and erection of single storey side and rear extension

Demolition of existing care home and redevelopment of site to erect a new secure residential institution care facility (use class C2A secure hospital) with parking

My wife would like to be able to work from our home as a hairdresser. We have an existing brick built outbuilding in our building that will be used for this purpose. We converted our current house 5 years ago from a commercial property (formally the Flaxdressers pub and later Saffron Blue Indian resturant) so it is currently a residential only use type, and we need to change it to mixed-use I believe. Please advise if this is not the case. Access to and from the highway remains the same as when the property was commercial and has sufficient turning area to exit facing the highway. The outbuilding requires only minor building works such as replacement windows/door and insulated plasterboarding internally.

Change of use of dwelling (Use Class C3) to childrens residential home (Use Class C2) with external alterations to include the conversion of a single storey garage for home schooling purposes