
The Sub-Regional Strategy gives priority to urban regeneration by focussing growth on Portsmouth, Southampton and the other existing urban areas. However, previously-developed “brownfield” sites alone cannot accommodate all the necessary development; some building on greenfield land must be planned for. A limited number of extensions to existing urban areas are proposed during the next 10 years, but most greenfield development will take place after 2016 in two Strategic Development Areas (SDAs) – one proposed to the north of Fareham and the other to the north/north east of Hedge End.
Local planning authorities will allocate sufficient land and facilitate the delivery of 80,000 net additional dwellings in South Hampshire between 2006-2026. This housing total is split between the local authority members of PUSH. The apportionment of housing broken down into each local authority, as stated in the South East Plan, is as follows:
| District | Annual Average | Total |
|---|---|---|
| East Hampshire (part) | 60 | 1200 |
| Eastleigh | 354 | 7080 |
| Fareham | 186 | 3720 |
| Fareham SDA | 500 | 10000 |
| Gosport | 125 | 2500 |
| Havant | 315 | 6300 |
| New Forest (part) | 77 | 1540 |
| North / North East Hedge End SDA | 300 | 6000 |
| Portsmouth | 735 | 14700 |
| Southampton | 815 | 16300 |
| Test Valley (part) | 196 | 3920 |
| Winchester (part) | 337 | 6740 |
| Sub-Regional Total | 4000 | 80000 |
The housing distribution figures for individual districts in policy SH5 of the South East Plan broadly reflects the population distribution while taking account of environmental attributes.
A sub-regional spatial strategy was required to support the projected growth figures in the South East Plan and to determine the appropriate distribution of housing. This process was informed by a number of sub-regional assessments, most notably the sub-regional Strategic Flood Risk Assessment. High-level statistical analysis of flood risk in the sub-region to assess the feasibility of the PUSH housing allocation at both the sub-region and local planning authority level was undertaken. Subsequently, these housing allocation figures have been arrived at following broad analysis of flood risk in the sub-region. The second phase of the Strategic Flood Risk Assessment involved the production and delivery of key mapping outputs and guidance to assist Planners and Flood Risk Managers to meet their housing and development targets set out in the South East Plan whilst avoiding flood risk and demonstrating compliance with PPS25.