Relative moving within three doors!

The chances are that you and they will go on living separate lives as you do now. Starting off cautiously, as has been suggested, is a good idea.

There's always the possibility, too, that they won't like living there and will move on.

I can well imagine how you feel, but if they decide to move there, you can’t do much about it.

Have you discussed with them the fact you are hoping to move there, and made it sound so good that they have decided to follow your lead, or is it a spontaneous decision on their part?

If the former, a bit late but ? would have been better.

If the latter, well….

Good advice Grandmabatty !

I would not like that at all, I can see that it would take the pleasure out of it.

If they are in a chain you can only hope that theirs falls through. Are there any negatives you could moan to them about that might put them off?

There is nothing you can do about them buying property so close by except have very strong boundaries, physically and mentally. Keep your doors, front and back, locked. Gates locked. Have a Ring doorbell. Make it clear from the start there won't be any 'popping in'. Ask them why they want to suddenly move so close and their answer will reassure you or warn you. I once stayed across the path from my parents and it was lovely as the children were able to go between the houses easily. My parents didn't overstep though. Good luck.