Complex sentence: The building was removed because of asbestos and poor condition of the structure, at the moment there are no plans by Southern to use it and it is planned that FCC (First Capital Connect) will use it when the Thameslink 2000 project reaches completion.
Split into simpler sentences: The building was removed because of asbestos and poor condition of the structure. At the moment there are no plans by Southern to use it and it is planned that FCC (First Capital Connect) will use it when the Thameslink 2000 project reaches completion.