What is a BRE Daylight & Sunlight Assessment?

A BRE Daylight & Sunlight Assessment is a detailed technical analysis and report that evaluates the potential environmental impact on daylight, sunlight, and overshadowing by a proposed development. BRE Daylight and sunlight studies focus on impact analysis (the proposed development on its surrounding environment) and internal analysis (the proposed development on itself).

Under the BRE guidelines, property developments are assessed for impacts on sun lighting, vertical sky component (VSC), annual probable sunlight hours (APSH), and average daylight factor (ADF). Depending on the results generated, design changes may be required to mitigate the impacts a development may have on its environment and on itself.

Carrying out BRE daylight and sunlight analysis at a very early design stage is highly advisable for most proposed developments. This helps assess and determine if the early massing and scale design of a scheme will be suitable for a given site.

This is a snippet taken from Episode 2 of the 3D Design Bureau Podcast. Full episode available here: https://www.youtube.com/watch?v=NqBVVT1IBec

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