Oh, well... my bad
Well then, let's create some defenses, shall we?
Ok, wards, first and foremost. A wizard that thinks about it could try and ward his home from the other side as well. Lea did that for Harry, but Edinburgh and Archangel are protected by wizards, not shide. As far as I understand it, they closed up the nevernever around those places and only left one entrance open, easy to defend. But still a pretty straight forward attempt at defending things. I like a more indirect approach.
For example, you could redirect the entrance to your home, instead of reinforcing it. Force your way inside, and the ward will use your strength against you and catapult you out on the other side, back into the nevernever. Or maybe even a whole other place in the nevernever, if the wizard in question is really good at that sort of things.
Or a similar idea, make it a multilevel entrance, so that when you get into the first door, you land in a different patch of the nevernever, from where you can enter the real home. Forcing your way in will still lead you to the wrong place, so you will actually have to disable the wards.
Inside the home itself, you could put down iron on the floor. I think a lot of the shide go barefoot, just because it's their style (and I like the trope), therefore a floor with steel tiles worked into it would work wonders to slow them down.
You can install steel doors with steel handles. If they try to bust through the walls: iron paint. There is magnetic paint out there that you can use to create a magnetic wall anywhere you want. Painting all your walls like that is pricey, but it will be pretty shide proof after that. Though this is a few levels of paranoid, I think. Then again, if someone is being followed, he might have good reason to do so.
That's it for now. If I can think of more things, I'll get back to you