The Hospial ISN'T listed, only the church. You can nominate a building to be listed (you don't need to be the buildings owner to do this), the form for doing this is here
and the guidance notes for filling in the form are here
Pevsner in the Buildings of England describes the Hospital as follows:
The part which is the former workhouse has a central entrance block with tower and short rectangular spire, 1862-3 by Thomas Leyland. The wings on either side have since been raised in height. The other symmetrical block, with a prominent central feature, further north, was the Union School, 1868.