Plans for luxury Port Arthur hotel

Guests should expect to fork out more than $1000 a night to stay at a luxury hotel proposed for Port Arthur.

Plans have been revealed for a $25 million luxury hotel overlooking the Port Arthur Historic Site in southern Tasmania.

The Federal Group on Friday unveiled its concept which includes 20 suites - expected to cost guests more than $1000 a night - along with a bar, restaurant and spa treatment facility.

"The resort is focused on providing a unique guest experience that is completely luxurious yet understated and respectful to the site," architect Peter Walker said.