I am looking to convert my alfresco into an additional bedroom. Below is my current structure The thing to note is where the alfresco ends, there is 3 metre of concrete after that, currently covered by a pergola. I am wary of the living area that will be reduced, but that zone is currently unusable in winters and has aggregated concrete flooring which is impossible to walk on. I am looking at suggestion for design, that ideally won't reduce the living/hosting area while providing cover from the cold. This is a property based in outer wester suburbs of Melbourne.