This CSV table shows a breakdown of the dwelling stock down to a lower geographic level Lower layer Super Output Area or LSOA, categorised by the property build period and property type. CSV metadata. Counts in the tables are rounded to the nearest 10 with those below 5 recorded as negligible and appearing as -. Data on build period, or age of property, has been used to create 12 property build period categories: Pre-1900, 1900-1918, 1...