Complex sentence: In spite of auctions in 1852 and 1856 some lots were still unsold in 1858; there were only 28 houses in 1871, vacant plots remained in 1896, and the southern part of the estate was never built on.
Split into simpler sentences: In spite of auctions in 1852 and 1856 some lots were still unsold in 1858; there were only 28 houses in 1871. Vacant plots remained in 1896, and the southern part of the estate was never built on.