One of these boundary walls is my responsibility and it is unstable, it moves when you lean on it. I want to remove it to save car doors being bumped and because it is going to fall over soon and might hurt someone or cause damage. I can't afford a nice brick wall to replace it. I am not going to leave it looking a mess if it is removed, just get the paving patched in to match the rest of the front. My neighbour says I have to replace the wall, and they are getting quite agitated about it. No reason given. They just told me it is a 'party wall' and must be replaced. I thought 'party walls' are interior, 'boundary walls', exterior. :-/ Do I legally have to replace the wall? Is it unreasonable NOT to have a wall or fence on your boundary? Feeling wobbly because I have just been shouted at when I tried to do the right thing and discuss my plans with him.