Henry Hill was born in 1807. His father, Thomas, was an architect as was his elder brother William. Henry may possibly have received part of his architectural training in England as it is known that he was in London from at least January 1826.
He returned to Cork in early 1827, possibly to join the office of George Richard Pain before going on to establish his own busy practice.
Hill, in his early life at least, appears to have been as interested in landscape and topographical painting as he was in architecture.