I have 3 different "tort" houses for my sulcata. They are the large plastic dog houses that are in shaded areas.
The burrow is in a place where he won't damage anything, can't escape, and it looks like it's going down at a very gradual slope. He had been hanging out under my low reclined lounge chair that I use when I'm hanging out with him, and that's where he started digging.
It's not that I really mind him burrowing. I assume it's a totall natural thing for him to do. It's been really hot here the past two weeks, so I'm guessing that he's burrowing to cool off. I just get paranoid about possible things that could go wrong...flooding from rain, collapsing dirt, things like that.
I was hoping to gain some insight from other's experences in this so that I can decide whether to let him keep it, or fill it in. But the more I think on it, the more I'm inclined to fill in the burrow. One reason is that I won't be able to get to him when I need to....He usually comes when I call him, but if he got sick or something, I can't imagine him rushing out to see what kind of treats I had for him. PLUS around here, rattlesnakes are known to share burrows with gopher tortoises.... I sure don't want one of them under my lounge chair... lol
Pamela