What is the origin of the term "Pound House"?

Question

There are Pound Houses in many towns and villages across the UK. What does the term - "Pound House" mean?

Answer 1

A pound was where straying animals were kept. The Pound House was the home of the pound keeper.

Answer 2

There's a Pound at Pound Piece on the Isle and Royal Manor of Portland, Dorset. This pound was used to collect stray animals that were allowed to graze, by common law, on the 'common land' on the Island. The Royal Manor allowed this, it is controlled now by The Crown Estates. Possibly there is a similar link to other towns/ villages/ parishes etc.
I guess the word impounded has some base in this. To Take lawful possession of, to shut up and animal in a pound.
Pound - municipal enclosure for stray animals.

Answer 3

never heard of this,going to google it,thanks 4 educating me though.