It is clear that a combination of Options H1 and H2 will be required to deliver the significant housing requirement of the Core Strategy review. To provide a realistic prospect of achieving the housing requirement a range of sites of a variety of different sizes and locations should be identified for development in sustainable locations within the HMA. Identifying a range of sites in a variety of different locations will help create the choice and competition of the market for land and ensure delivery. It must be ensured that any proposed urban extensions are deliverable within the plan period and that, if larger sites are identified, only the part that is deliverable in the plan period is included in the supply figures. It is, therefore, necessary to understand the infrastructure requirements, likely delivery rates and the ability of sites delivered quickly when making allocations.