Rules on squatters

Hello, I'm about 4-5 days old now, and I found this huge wall (triple walls) that span a good distance on the far side is a hole that I can enter, from the looks of the place it was going to be a town but was raided before the walls got up. There doesnt seem to be any claims, personal or city any where. and there are some really advanced looking houses and stuff all over the place. And LOTS of urns.
Iv learned that the red-er something is the more damaged it is and that things decay over time if not on a claim. so I'm guessing this place was ruined long ago.
Tho I dont know how to use most of the stuff in this place, nor can I seem to open any of the gates. Would it be a faux pas to claim some of this as my own and move into one of these nice houses?
Iv learned that the red-er something is the more damaged it is and that things decay over time if not on a claim. so I'm guessing this place was ruined long ago.
Tho I dont know how to use most of the stuff in this place, nor can I seem to open any of the gates. Would it be a faux pas to claim some of this as my own and move into one of these nice houses?