This page contains results of recent projections produced by the GLA that have been designated as research outputs rather than as a full entry in the GLA's annual series of projections. **Update - 29 May 2026** An updated set of trend-based projection outputs have been added. These include adjustments to the underlying estimates of population and international migration of children to address...

From 1 August 2019, the Secretary of State for Education delegated responsibility for the commissioning, delivery, and management of London’s Adult Education Budget (AEB) to the Mayor of London. In early 2020, the AEB Mayoral Board agreed that AEB programme data should be published following the Department for Education’s Further Education and Skills data publication and in line with the UK...

Following the release of the latest London Atmospheric Emissions Inventory (LAEI) 2022, additional data has been produced at Borough level, to assist London boroughs with their LLAQM (London Local Air Quality Management) duties. Update May 2026: Emission datasets have been revised for a number of boroughs, following discrepancies identified in the previous update (December 2025). Please refer to the...

The LAEI 2022 is the latest version of the London Atmospheric Emissions Inventory and replaces previous versions of the inventory. Update May 2026: Emission datasets have been revised following discrepancies identified in the previous update (December 2025). Please refer to the Summary Note for further details. Emissions estimates of key pollutants (NOx, PM10, PM2.5 and CO2) by source type are...

Modelled estimates of annual live births by year ending date. Official birth estimates from ONS are considered very accurate, but the lag between the end of the period covered and the publication of estimates is typically 9-12 months. To gain a more timely indication of birth trends, the GLA Demography team produces modelled estimates of annual births...

This is a collection of presentations given at the Population Statistics User Group hosted by the GLA City Intelligence and attended by representatives of London local authorities. Additional presentations will be added to this page over time. An archive of presentations delivered at conferences is available here.

The Greater London Authority's ‘Housing in London’ report sets out the evidence base for the Mayor's housing policies, summarising key patterns and trends across a wide range of topics relevant to housing in the capital. The report is the evidence base for the Mayor’s London Housing Strategy, the latest edition of which was published in May 2018. The 2025...

The London Green Infrastructure Framework (LGIF), first published in January 2026, brings together key London-wide green infrastructure data in one place. You can use it to evidence, plan and prioritise the green infrastructure Londoners need. See http://www.london.gov.uk/london-green-infrastructure-framework for more information about its purpose and use, and https://apps.london.gov.uk/lgif/ for the map itself. This London Datastore page hosts: Two methodology reports produced by...

Information   These published reports present information from the multi-agency database Combined Homelessness and Information Network (CHAIN), about people seen rough sleeping by outreach teams in London. CHAIN, which is commissioned and funded by the Greater London Authority (GLA) and managed by Homeless Link, represents one of the UK’s most detailed and comprehensive sources of information about rough sleeping.  Services that record information...

Opportunity Areas (OAs) are London’s major source of brownfield land which have significant capacity for development. Development proposals within OAs should conform with strategic directions for the OA(s). The GIS files show the indicative boundaries, please contact the relevant London Borough to confirm accuracy. NOTE: The boundaries are based on Ordnance Survey mapping and the data is published under Ordnance...