Complex sentence: More recently the site has hosted the modern buildings of Her Majesty's Coastguard; however the new coastguard station, built in 1980 and opened by Prince Charles, was closed in 2001.
Split into simpler sentences: More recently the site has hosted the modern buildings of Her Majesty's Coastguard. However the new coastguard station, built in 1980 and opened by Prince Charles, was closed in 2001.