There is no justification for developing Green Belt, and no evidence that I have seen that building on brownfield land has been considered (this land might not be in Knebworth). The suggested primary school would be adjacent to the motorway, which seems unwise. The Gun Lane railway bridge is narrow and the additional traffic generated by development would prove unsustainable. There are already serious flooding problems in Gipsy Lane with the existing housing stock. These would be severely exacerbated. Scant if any attention has been paid to the existence of a conservation area (as with KB1).