Complex sentence: John Wood's Hospital which was founded July 7,1659 as an almshouse, it was renovated in 1975 as part of a wider development of the site that saw more than 10 pieces of accommodation built nearby which now forms a rather monotonous selection of sheltered housing.
Split into simpler sentences: John Wood's Hospital which was founded July 7,1659 as an almshouse. It was renovated in 1975 as part of a wider development of the site that saw more than ten residences built nearby, which now form sheltered housing.