TRC’s plans have been designed to link comprehensively with the remainder of the Tipner area as and when proposals come forward.

Activities to the west of the M275 will not be affected by the current redevelopment proposals.

A Code of Construction Practice will be prepared for the construction of the scheme. It will require works to be carried out in a way that protects the environment and keeps disturbance to residents to a minimum.

Measures will be employed to ensure that any noise during construction and any impacts on air quality (such as odour and dust) are minimised and temporary in nature.

Wherever possible construction material will be brought in by sea, reducing the numbers of heavy goods vehicles on the local road network.

The main access to the site will be from Twyford Avenue. A future link to the proposed M275 Interchange could be provided, although the Masterplan will deter general traffic from rat-running through local residential streets to access the motorway.

All internal site roads will be restricted to 20mph and sufficient car parking will be provided on the site to avoid any parking on nearby streets. Ample cycle parking will be provided as well as enhanced pedestrian and public transport facilities.

The redevelopment of the Tipner site will provide residents with a wide choice of travel options to enable them to access local services.

Flood protection measures are proposed that will protect the site from flooding from extreme sea levels. The ground levels of the site will be raised generally to between 4.3 and 4.5 meters above sea level so that it will be clear of the most extreme tidal events over the lifetime of the development. The ground naturally slopes upwards towards the south and therefore most of the land raising will be carried out at the waterfront where levels are significantly lower. It is also proposed to build a sea wall along the perimeter of the site.

A new sustainable drainage system has been designed to ensure that there is no risk of flooding from extremely high rainfall intensities. Sufficient capacity will be provided within the underground pipe network to store surface water at times when the ability to discharge water into Tipner Lake is restricted by high tides. Areas of the site will also be designated to safely gather water at shallow depth during times of very heavy rainfall which will, after the rain has passed, discharge into the drainage system.

The site is adjacent to the Portsmouth Harbour Special Protection Area (SPA), part of an international network of sites that are of importance in this instance to wintering birds. Areas of intertidal habitat adjacent to the proposed development have been shown to support important numbers of waterfowl (particularly wading birds) at high tide. These birds roost on the derelict jetty that forms part of the current site frontage and surrounding intertidal infrastructure.

Measures will be put in place to ensure that there is no negative effect on wintering birds such as appropriate timing of works and the design of a ‘wader friendly’ frontage to the development. Public access to the roosting area will be limited to minimise disturbance.

The ecological surveys undertaken at the site between 2006 and 2010 have shown that the site supports relatively little in terms of protected species, and that the habitats and plant assemblage are of limited value. The local conservation interest will therefore be enhanced though appropriate planting and other measures designed to meet local biodiversity targets.