This report presents the factual results of laboratory tests into the one-dimensional consolidation properties of clays from the Lias group. Two sets of tests were carried out, one loading to 4400 kPa and the other loading to 1776 kPa, based on the size of sample available. The lowest range of volume compressibility was 0.021 m2/MN and the highest 2.302 m2/MN. The lowest range of consolidation coefficient was 0.27 m2/year and the highest 159.54 m2/year
