Complex sentence: The current red brick church was completed in 1905, and held its first mass on October 22, a tradition that ended in 2012, when the church was closed by the London diocese due to the building being "unsafe".
Split into simpler sentences: The current red brick church was completed in 1905, and held its first mass on October 22, a tradition that ended in 2012. When the church was closed by the London diocese due to the building being "unsafe".