Following the UK implementation of European Standard EN 17037:2018 ‘Daylight in Buildings’ in May 2019, and the subsequent withdrawal of British Standard BS 8206–2:2008, the BRE’s 2011 publication ‘Site layout planning for daylight and sunlight: A guideto good practice, second edition (BR209), which is widely regarded as the leading authority on all matters relating to daylight and sunlight at design and planning stage, suddenly became outdated. The industry has since been left in a state of uncertainty when tasked with evaluating the amenityprovision of daylight and sunlight within new developments, torn between the tried-and-tested BR209 methodology from the now withdrawn BS 8206 and the newer but more complex British Standard methodology — until now. The eagerly anticipated revised addition of BR209 has now been published,but will it provide clarity on common issues relating to current daylight and sunlight analysis and evaluation methods that are prohibitive to achieving planning permission for higher-density development delivering much-needed housing, or will it only prove to compound these issues? This paperexplores the new guidance and reviews the recommended methodology to understand what the changes will mean for developers and neighbours alike.
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