Thanks for the replies. Still don't know what to do. It appears that they have indeed gone ahead without planning permission. I don't have a problem with the garages, although I don't like people who do as they like without any regard for the law. I do have a problem with them using agricultural land to extend their "garden" as do other neighbours. For instance they have now installed their kids trampoline right in front of a neighbours kitchen window (overlooked pastureland before), and they have "built" a raised football pitch, also on agricultural land, built a new entrance to the property (agricultural land), torn down an ancient hedge, prior to applying for planning etc etc. When the planning was refused they were told this was not permissable, but they've just done it anyway. The ironic thing is that jointly with this person, we bought land to prevent the previous owners from change of use!