Success stories on moving houses smoothly with cats?

We are moving houses soon but will only be 1km away from our current place. The new house has a giant sunroom off the back that we plan on making the cats’ room for at least 2-4 weeks. The problem is they’re indoor/outdoor cats. Well we tried really hard to have them be indoor only it worked for about a year and then eventually they escaped while we had a pet sitter and it was just impossible trying to keep them in 100% of the time again.

I’m not very worried about our ginger boy because he’s always been a home body and never wanders far at all. He’s always on the deck or in the garden. I think once he adjusts to the new place he will stay close. I’m more worried about our tortie girl who sometimes adventures off for a day or two before coming home. We will be so close to our old home I’m worried she will turn up there trying to get in 😩