All London Green Grid

All London Green Grid
Name	All London Green Grid
Settlement type	Strategic green infrastructure network
Subdivision type	Country
Subdivision name	United Kingdom
Subdivision type1	Region
Subdivision name1	Greater London

All London Green Grid

The All London Green Grid is a strategic framework for green infrastructure and urban planning in Greater London developed to coordinate green spaces, ecological networks, recreation routes and sustainable drainage across London boroughs. It links parks, Regent's Park, Richmond Park, Hampstead Heath, river corridors such as the River Thames and the River Lea, and metropolitan routes including the Capital Ring and Thames Path to support biodiversity, recreation and climate resilience. The initiative interacts with policy instruments associated with Mayor of London, Greater London Authority, and statutory planning regimes including Town and Country Planning Act 1990 and regional strategies.

Overview

The All London Green Grid provides a spatial strategy for integrating green corridors with urban fabric across London Borough of Camden, London Borough of Hackney, London Borough of Hounslow, London Borough of Waltham Forest, London Borough of Lambeth and other boroughs. It complements networks such as the Blue Ribbon Network and links to designated sites like Sites of Special Scientific Interest including Epping Forest. The framework cross-references national frameworks like National Planning Policy Framework while aligning with international commitments such as the Convention on Biological Diversity and United Nations Framework Convention on Climate Change.

History and development

Origins trace to 1990s strategic planning initiatives by the Mayor of London and boroughs reacting to urban intensification post-Greater London Authority Act 1999. Early pilots involved partnerships among Natural England, Environment Agency, Royal Parks and community organisations like London Wildlife Trust and The Conservation Volunteers. Subsequent iterations were influenced by events including the 2008 London Plan review, flood episodes on the River Thames Floodplain and climate policy shifts after the Paris Agreement. Cross-borough pilot projects referenced plans by authorities including Havering Council and Waltham Forest Council.

Objectives and policies

Primary objectives include enhancing biodiversity across corridors linking Barnes Wetland Centre, Walthamstow Wetlands, and Isle of Dogs green roofs; improving public access via routes like the Lea Valley Walk and Green Chain Walk; and delivering ecosystem services such as flood attenuation in the Thames Gateway and urban cooling in inner London near City of London and Tower Hamlets. Policies integrate with statutory instruments like the London Plan policies on green infrastructure, align with targets from Greater London Authority and reflect biodiversity targets set by Department for Environment, Food and Rural Affairs. The framework encourages nature-based solutions to issues highlighted in reports by UK Climate Change Committee and recommendations from Natural England.

Spatial structure and components

The grid is articulated through components including strategic corridors along the River Wandle, River Brent, and Roding Valley, metropolitan parks such as Victoria Park, community green spaces in boroughs like Croydon and Haringey, and engineered features including Sustainable Drainage Systems demonstrated in schemes by Thames Water and Canal & River Trust. It includes habitat patches supporting species associated with London Wetland Centre and Highgate Wood, linkages to transport hubs such as King's Cross St Pancras and London Bridge for active travel, and overlays with conservation designations like Metropolitan Open Land.

Implementation and governance

Governance is multi-level involving the Greater London Authority, elected mayors including initiatives from the Mayor of London office, local planning authorities like Southwark Council and Islington Council, statutory agencies such as Environment Agency and stakeholders including Transport for London and third-sector organisations like RSPB and WWF-UK. Delivery mechanisms use Supplementary Planning Documents produced by boroughs, strategic planning tools from Ordnance Survey and monitoring frameworks aligned with Office for National Statistics datasets. Cross-sector governance convenes through boards and partnerships modeled on collaborative bodies such as the Thames Estuary Partnership.

Funding and partnerships

Funding mixes public investment from Mayor of London budgets, borough capital programmes, grant streams administered by National Lottery Heritage Fund, revenue from bodies like Transport for London and project-level finance from private developers under Section 106 agreements and Community Infrastructure Levy. Partnerships engage landowners including English Heritage properties, conservation NGOs such as London Wildlife Trust and corporate actors involved in urban regeneration like Canary Wharf Group. Academic partners including University College London and Imperial College London contribute research on ecosystem services and evaluation.

Impact and evaluation

Evaluations reference biodiversity outcomes in sites like Wimbledon Common, flood mitigation performance in the Thames Gateway and social benefits measured in studies by King's College London and London School of Economics. Performance metrics include increases in tree canopy reported by City of London Corporation, access indicators for parks used by Sport England datasets, and ecosystem service valuation influenced by guidance from Natural Capital Committee. Independent audits and case studies have examined projects in Battersea, Lewisham and Greenwich Peninsula to assess delivery against targets set in the London Plan and national objectives under the Environment Act 2021.

Category:Green infrastructure in London