Variation of conditions 10 (Drainage) and removal of condition 11 (Validation report) of planning permission 17/02969/B56 (Change of use of Nielsen House and annexe from office (Use Class B1(a)) to residential (Use Class C3) to provide 114 x 1-bed flats and 20 x 2-bed flats. This application is for determination as to whether prior approval of the Council is required and, if required, whether it should be granted. This application is assessed solely in respect of transport and highway impacts, contamination risks, flooding risks, impacts of noise from commercial premises on the intended occupiers of the development on the site.) to allow the updated drainage scheme to reflect the adjustments and confirm no remediation is deemed necessary within the boundaries of the development site.