I agree in Ireland things are much more sensible, especially if taking the shot from a public road. Some sites (as Síle mentioned) like Kilkenny castle have a clear not indoor photograph policy, which is understandable. There are, as far as I know, some restrictions in relation to taking photographs of a private property, it normally means you would need to get a release from the person living in the house. I came across that some years ago, my wife is from Cork and I thought it might be nice to get her a framed print of the house she grew up in. As I was very busy in my day job I contacted a photographer in Cork to commission him to get the shot, however he refused without a signed release and would not even try get the release for me.