Experiencing Density: Life in London’s New High-Density Housing is a research project exploring how residents experience new high-density residential environments in London, and what factors condition liveability and social sustainability. The project builds on recent surveys, onsite interviews and focus groups with residents, which revealed a number of key challenges and opportunities associated with new-build high-density developments, and an older report on Density and Urban Neighbourhoods in London. The next phase of the project, funded by the GLA, will compare high-density developments built within the last 10 years with older high-density typologies built in the late 1800s, the 1930s, and the 1970s in blocks generally described as ‘successful’. The findings from the project will feed into the development of the new London Plan and potentially also Supplementary Planning Guidance on density. The research project is jointly organised by LSE Cities and LSE London.