The sigils are very similar to what's on the Dreaming gateways, yep. Not the same, but they can work in similar ways.
The foundation, not so much, since Anton has disconnected the ley-wards. When he is examining them it would leave vibrations, though--like a live but disconnected wire--but he doesn't have a current reason to do that.
Things like plumbing and energy are stored elsewhere and transmitted as needed, so Toph might feel vibrations when someone turns on a tap or a light (and track where it's been turned on, from the sounds of it). Temperature control is more widespread ... that's probably more of a surface thing rather than an effect internal in the walls, so she wouldn't feel that.
no subject
The foundation, not so much, since Anton has disconnected the ley-wards. When he is examining them it would leave vibrations, though--like a live but disconnected wire--but he doesn't have a current reason to do that.
Things like plumbing and energy are stored elsewhere and transmitted as needed, so Toph might feel vibrations when someone turns on a tap or a light (and track where it's been turned on, from the sounds of it). Temperature control is more widespread ... that's probably more of a surface thing rather than an effect internal in the walls, so she wouldn't feel that.