Green Infrastructure, Flooding & Water Management

Green Infrastructure

Green infrastructure describes the network of greenspaces, landscapes and natural elements that intersperse and connect our cities, towns and villages.

Maximising the potential of local green space is a critical environmental priority for PfSH. Providing new local green assets and making more effective use of existing assets will help absorb pressure from new development and reduce the impact on the protected and environmentally sensitive landscapes surrounding and within South Hampshire. Providing high quality green space, accessible to the public, will be essential to delivering development that supports the economic aspirations of the sub-region.

PfSH has developed a Green Infrastructure Strategy which provides a long term framework (to 2034) to shape and enhance an integrated and multi functional green network of South Hampshire’s distinctive local environments to ensure they can adapt to climate change and are managed and valued as part of sustainable, prosperous and healthy lifestyles.

South Hampshire GI Strategy 2017-2034

PfSH is currently drafting a South Hampshire Green Infrastructure Implementation Plan 2019 to deliver the Green Infrastructure Strategy and update the 2012 Implementation Framework. The Plan will set out the strategic green infrastructure projects that will enable growth and development within the sub-region, whilst at the same time deliver a range of environmental and community benefits.

Recent successes include significant improvements in the development of strategic country park facilities at: Aver Valley Country Park, Gosport; Horsea Island Country Park, Portsmouth; Manor Farm Country Park, Hamble; and Royal Victoria Country Park, Netley; and to the rights of way network across South Hampshire.

Flood Risk Management

PfSH Strategic Flood Risk Assessment (SFRA) 2016 Update Report

The PfSH Strategic Flood Risk Assessment (SFRA) 2016 update has delivered revised reporting, mapping and guidance notes to replace the document “Partnership for Urban South Hampshire Strategic Flood Risk Assessment Final Report, December 2007” which was compiled by Atkins Ltd and published in 2007. The update was undertaken on behalf of PfSH by the Eastern Solent Coastal Partnership and delivered in June 2016.

After the publication of the previous PfSH SFRA there were a number of changes to planning guidance and the enactment of new Legislation that includes the Flood and Water Management Act (2010). National planning policy is now defined in the National Planning Policy Framework (NPPF) and the supporting Planning Practice Guidance (NPPG).

This Level 1 Strategic Flood Risk Assessment is a strategic document which assesses and maps all forms of flood risk from tidal, river, groundwater, surface water and sewer sources, taking into account future climate change predictions. The package of work provides appropriate supporting evidence for The PfSH Spatial Strategy review in addition to Local Plans being developed by the local partner authorities.

The purpose of the PfSH SFRA update has been to:

  • provide information that reflects the changes to planning policy and guidance and new Legislation since the previous SFRA;
  • provide a high level assessment of the flood hazard within the Flood Zones;
  • provide a high level assessment of the effects of climate change scenarios on sea level rise at the coast and in estuaries and river flows upstream;
  • provide information on existing defences and flood risk management measures;
  • provide an evidence base to allow a sequential approach to site allocation to be undertaken within a flood zone;
  • allow development of the policies and practices required to ensure that any development being considered in Flood Zones 2 and 3 is appropriate and satisfies the requirements of the NPPF.

You can access and download the updated PfSH SFRA reporting and guidance notes below. The updated flood risk mapping GIS system is also available for online viewing.


Strategic Flood Risk Assessment Update (2016)

Guidance: East Hants Eastleigh Fareham Gosport Havant New Forest Portsmouth Southampton Test Valley Winchester

Please be aware that the Flood Risk Map is currently unavailable, we are endeavouring it to go up as soon as possible, potentially could be a few months. Sincere apologies for the inconvenience caused.

Please use this link as an alternative in the meantime

Water Management: supply and waste water disposal

PfSH, working with the Environment Agency, Southern Water and Portsmouth Water, completed an Integrated Water Management Study (2008) into the requirements for water supply, water quality, drainage and disposal of waste water, and for designated conservation sites, on a sub-regional basis. Together with other work done by the Agency and the water companies this will guide investment in water related infrastructure over the next 25 years, including addressing existing inadequacies in such infrastructure such as severe capacity constraints in drainage and surface run-off infrastructure. A pilot project will be undertaken in Portsmouth to test ways of separating foul drainage and surface runoff infrastructure to increase capacity.

Further information:

Portsmouth Water Water Resources Management Plan (2014)

Southern Water Water Resources Management Plan (2013)