This report is an assessment of the approach of the top 20 UK homebuilders – a group who last year built over 60% of new homes – to addressing climate change mitigation and adaptation issues. With our homes producing at least 27% of total UK carbon emissions, and the energy, water and material intensive nature of the construction industry, the longer term imperative to continue to progress towards a more sustainable built environment has not disappeared in light of the current market meltdown; indeed it is only likely to become more pressing.