Complex sentence: There is little notable building from the later parts of the 20th century, but major recent additions include the lifeboat station and two new structures for Trinity House; that organisation's office building, next door to the Old Custom Houses, was completed in 2005.
Split into simpler sentences: There is little notable building from the later parts of the 20th century, but major recent additions include the lifeboat station and two new structures for Trinity House. The Trinity House office building, next door to the Old Custom Houses, was completed in 2005.