Site Event/Activity record ESF23221 - Evaluation - Land at Red House Lane, Leiston

Trial trench evaluation excavated 27 trenches in advance of the construction of residential development on the c.8.5ha site. A programme of magnetometery geophysical survey was carried out in advance of the evaluation. Out of the 27 trenches, 15 trenches were blank while 12 revealed archaeological features. Topsoil deposits (0.17m-0.39m deep) were identified as mid-dark grey brown with flint gravel and modern material inclusions. Subsoil deposits (0.06-m-0.67m deep) were identified as mid-reddish brown silt sand. The natural geological horazon varied across the site. In the southern half of the site was sand with some clay seams. The majority of the rest of the site was a till of sand and clay with higher concentrations of clay in the northeast corner while deposits of chalk marl and clay were identified in the northwest corner of the site (S1).