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Last edited 23 Dec 2019
A light well (or lightwell) is an architectural feature that can be used to take natural light into the interior spaces of a building. It takes the form of a vertical shaft within the volume of a building that typically penetrates from roof level down to lower levels, allowing the transmission of natural light to areas that would otherwise require artificial lighting. Light wells can also be used to promote ventilation.
A large light well may be referred to as an atrium.
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