An archaeological evaluation was commissioned on land at 129 St Denys Road, Southampton, SO17 2JY. The works were undertaken in response to planning conditions set out in planning application 19/01414/FUL approved by Southampton County Council. Three trenches were excavated and intact brickearth was found across the site. A sondage excavated within Trench 2 confirmed brickearth was present to a depth of 1.48 m bgl where alluvial deposits were observed. A modern rubbish pit and a gully of 19th century date, were observed. Both were filled with demolition material. Three parallel ditches (orientated NE - SW) were identified within Trench 2, on the approximate alignment of a field boundary depicted on the 1846 Royal Engineers Map of the area. Upon investigation the ditches were found to more closely resemble robbed out walls due to their vertical sides, flat base and the presence of deliberate backfill comprising building material. A wall was located within the southern extent of the site. The rough courses of limestone blocks and bricks were found bonded with redeposited brickearth. No associated finds were recorded. The construction techniques and materials used suggest an early post-medieval date. Man-made material resembling mortar was identified within the brickearth at 1.3 m bgl. No features were identified in association with the deposit. The results are consistent with those found during previous investigations in the vicinity.