GA1, GA2, NS1 will promote the urban sprawl of Stevenage and coalescence of Stevenage, Great Ashby and Graveley.
HT1 and LG1 are contrary to the principles of garden cities where the idea of a green belt to protect the garden city were first applied at Letchworth
EL1, EL 2 and EL3 promote coalescence of discrete settlements at Mangrove Green and Cokernhoe with the urban sprawl of Luton

This is contrary to Section 9 of NPPF ,and also affects settings of parks at Putteridge Bury, Chesfield Park and Letchworth Garden City itself contrary to Section 12 of NPPF