Spatial Daylight Autonomy (sDA) and Annual Sun Exposure (ASE)

Calculation for the Well Building Standard Requirements

The WELL building standard is a leading tool for advancing health and wellbeing in buildings globally. WELL’s flexible framework aims to improve health and human experience through design.

The WELL building standard stipulates criteria to find a balance between sDA, which measures the percentage of floor area that receives adequate sunlight, and ASE, which measures the percentage of floor area receives too much direct sunlight.

To achieve the desired credit, analysis is carried out using 3D modelling software to simulate the amount of sDA and ASE within an area.