Fantastic enclosures! They should all be very happy dragons!
Re the cats, according to the Companion Animals Act, cats MUST be locked inside at night. You are well within your rights to catch any you see roaming round at night and take them to the RSPCA. Imagine all those vulnerable colonies of waterdragons you guys were mentioning. GRRRR, IT MAKES ME SO ANGRY. Mammal-owners should be more responsible for their pets, considering the havoc a cat can wreak on local wildlife. :evil: