A non-material amendment to 3/19/1024/FUL: Detailed planning application for the erection of 254 dwellings, associated parking, landscaping and amenity space, along with vehicular and pedestrian access from Thieves Lane and Welwyn Road. Amendments to house types. Amendments to internal floor plan and elevations for type B842 (Plots 70, 71, 75, 76 and 78) and amendments to window locations type S825 (11, 18 and 39).