Harold Wilson's Labour government commissioned town planner
Colin Buchanan in 1965 to study the region. He found a region of growing economic importance, in desperate need of proper planning to avoid unplanned sprawl, and suggested the construction of a
modernist urban area between Southampton and Portsmouth. However this was resisted by local authorities who occupied the proposed development sites, and Buchanan's plans were never put into effect. Instead, as a result of high-tech industry and services, the area was able to grow largely without overall planning to become perhaps the most densely populated region of the UK. Different departments of the Solent LEP are distributed across the area, with its 'Growth Hub' being based in Southampton. On 12 November 2013 the government announced the second wave of
City Deals, with a successful joint bid of Southampton and Portsmouth providing £953 million of investment into the Solent LEP. Various attempts at a South Hampshire or Solent City devolution deal have been made, but saw minor local resistance, stemming from the Southampton-Portsmouth rivalry, as well as from the more rural Isle of Wight. Whilst the proposal did otherwise see continued support, particularly from councillors, by 2018 talks with the government had stalled. More recent proposals have included southeast Dorset, that is
Bournemouth, Christchurch and Poole (BCP). After another bid was submitted in 2021,
Gerald Vernon-Jackson claimed the government were "keen" on including BCP in a potential deal. A November 2022 report by BCP Council suggested a Central South deal as an alternative to a Pan-Hampshire deal with BCP tacked on. ==Geography==