Belvedere, Erith and Thamesmead, London
In this project the aim is to enhance the environmental and social quality of 156 ha of marshland, including 15 km of drainage dykes and redevelopment of 12.5 ha of derelict land for 47,500 people living within 1.2 km. Relevant tools for focus include climate change adaptation, flood alleviation, tourism, transport and access, public health and wellbeing. Amongst other benefits, the marshes and other greenspaces provide an un-costed cooling benefit for ca. 2500 households within 450m. Water costs and carbon emissions relating to water treatment will be improved via the natural drainage system (worth £0.6m and £0.3m respectively). The reduction in mortality rate due to an uptake in walking is estimated to be £7.4m. Total benefits generated by the improvements are estimated to be approximately £55m. The total cost of regeneration is £10.54m (including a new link road) making this a good rate of return on investment.
Liverpool's Knowledge Quarter (LKQ) is an inner city neighbourhood which has been identified as a strategic employment site in NW England. An Urban Design and Public Realm Framework was produced for the area in 2007 and the Green Infrastructure Valuation toolkit was commissioned as a follow up. The aim is to reconnect and improve the area through a net gain in green cover (new green roofs, street trees and greenspaces) which will supply a range of benefits such as climate change adaptation, flood alleviation, increase in property value, employment uplift and better health. Savings in building energy costs are estimated at £3.4m, avoided water costs and carbon emissions relating to water treatment are estimated at £1.6 and £2.0m and health benefits from reduced pollution are estimated to be worth £14k. The value of GI benefits is £29m - £45m and more than 70% of this is attributed to new employment opportunity. At the lower estimate level, the benefits should cover the cost of investment (£29.7m).
Ropner Park, Stockton-on-Tees
The GI Valuation Toolkit was used in Ropner Park, a 15.5 ha urban park that has recently undergone extensive improvements. The recreational value tool demonstrated that users are willing to pay an average of £0.96 per visit which is worth £98.8k per year. Take-up of moderate exercise reduced mortality rates (estimated worth £0.65m over 10 years). Property values within 450m were enhanced and urban temperatures are reduced by 1ºC. The total project cost was £3.5m and overall benefits are estimated to be approximately £20m.
(full details on main website - https://www.merseyforest.org.uk/services/gi-val/)