Complex sentence: In 1987 the narthex was converted into a dedicated night shelter and a charity was formed to raise money to develop the shelter further, in particular by redeveloping the interior of the church to dedicate more space to homeless people.
Split into simpler sentences: In 1987 the narthex was converted into a dedicated night shelter. Soon afterwards a charity was formed to raise money to develop the shelter further, in particular by redeveloping the interior of the church to dedicate more space to homeless people.