At the top of a sloping driveway, the stately Edwardian structure that was the original university building presides over the institution's newer buildings.
The original university building is no longer being used by the university.  
mnli hypothesis: The original university building is no longer being used by the university.   premise: At the top of a sloping driveway, the stately Edwardian structure that was the original university building presides over the institution's newer buildings.