HEA 01 - Daylighting

Assessing new dwellings built above or below an existing dwelling - KBCN0318

A new build dwelling above or below an existing dwelling is considered to be a new space and therefore criterion 2 of Hea 01 should be followed to assess the minimum daylighting levels. The whole dwelling, whether above or below the existing one, is a new space and has more stringent criteria than for existing spaces.

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