Flood risk and drainage is a vital measure to take into account when developing a building, One Moulsecoomb Way has had a comprehensive drain/age and flood risk assessment carried out by HWA Consulting Engineers, their results shown in Planning Application BH2020/01110 ‘DRAINAGE STRATEGY & FLOOD RISK STATEMENT V5.0’ (08/22). Their results showed that the property falls in a ‘Zone 1’ chance of flooding, meaning there is a 0.1% chance of flooding, this reduced the need for additional infrastructure to prevent flood damage. The drainage services on the property were also summarised in this document, stating that surface water was to be removed through ground infiltration, requiring minimal additional infrastructure to move the surface water away from the property. However, foul water was to be disposed of through two separate connections to the Southern Water foul sewer, one would be located on the East side of the site and the other on the West side, this is to ensure there is adequate drainage capacity for the full occupancy of the property. The foul sewer runs under street level on Moulsecoomb Way and Lewes Road (shown bellow).
