Complex sentence: The Rectory, now alienated, is a 2-storied building built of white brick by the Rev. H.J. Sperling in 1847-8 by a builder called John Bland at a price of £497 exclusive of timber, which was supplied by the estate.
Split into simpler sentences: The Rectory, now alienated, is a two-storey building built of white brick for the Rev HJ Sperling in 1847--8 by a builder called John Bland. The cost was £497 exclusive of timber, which was supplied by the estate.