Daylight Assessment for Basement Flat – Haringey
SWEL were approached by a property company in Haringey, London, to undertake an assessment of daylighting in an existing basement flat, with a view to making improvements to to increase daylighting.
A recommended level (ADF) of 1.5% is given for living areas, and the calculated ADF for the living area was around 0.25%.
The existing basement had an open sky angle of around 19 degrees, and an obstruction angle of 50 degrees. A report was published to suggest improvements that saw calculated ADF raised to 1.6%.