Complex sentence: The Westside is a new name for an area of the city centre of Birmingham, England, which includes many new and planned buildings such as The Cube, Library of Birmingham, the V Building and Regal Tower.
Split into simpler sentences: The Westside is a new quarter in the city centre of Birmingham, England. There are many new builds in this area of the city centre including The Cube, Library of Birmingham, the V Building and Regal Tower.