Complex sentence: The shops in the shopping centre down below closed at the end of January 2008, in readiness for the demolition, and a final tour of the upper levels was held by the owners of the site in April 2008.
Split into simpler sentences: The shops in the shopping centre down below closed at the end of January 2008, in readiness for the demolition. A final tour of the upper levels was held by the owners of the site in April 2008.