Complex sentence: The Beaumaris Campus Trade Wing which housed Woodwork, Metalwork, Machine Shop practices and the Canteen, was demolished in the mid/late 90's, that was located east of the science wing, which currently is a grass area.
Split into simpler sentences: The Beaumaris Campus Trade Wing which housed Woodwork, Metalwork, Machine Shop practices and the Canteen, was demolished in the mid/late 90s. It was located east of the science wing, which currently is a grass area.