is you neighbour using the cctv for home protection
Are you asking if you can remove it?
I'm really sorry if I'm missing the point but I'm not sure on what basis?
This is private CCTV so they don't need to comply with the DPA.
They are perfectly free to keep CCTV footage if they really think they need to and there is no reason they cannot record footage of your front garden. If it had been looking in a bathroom window then that would be different!
There might be argument that it amounts to harassment if all his cameras are pointed at your property but CCTV cameras have to face somewhere and there is no reason that at least one cannot face your property.
I'm very sorry if that is bad news.
Can I clarify anything for you?