A historic environment desk-based assessment was undertaken in advance of the construction of a foul water rising main on land to the west of Cottam Power Station, Nottinghamshire. There is one scheduled monument, seven listed buildings and 44 non-designated heritage assets recorded by Historic England and the Nottinghamshire Council HER within a 1km survey area of the proposed development site. The historic background and map regression indicate that the proposed development site was located in area which was prone to flooding from the post-Roman period and is likely to have been used primarily for agricultural purposes in association with nearby human occupation activity. There has been limited change to the field boundaries since the earliest available mapping, until the construction of Cottam Power Station in the late 1950s. Following the assessment work, it was concluded that there would be no direct impact on any known designated heritage asset, and possible temporary construction phase indirect impacts, resulting in a significance of effect of none. There would be no direct or indirect impacts on any known non-designated heritage asset.