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Policy FLD 3: Development and Surface Water (Pluvial) Flood Risk Outside Flood Plains
Policy FLD 3NI-wide·PPS 15 Planning and Flood Risk (Revised)
A Drainage Assessment will be required for all development proposals that exceed any of the following thresholds: • A residential development comprising of 10 or more dwelling units • A development si
dwellingnon-domesticdrainageflood-risksurface-waterJustification and Amplification - Pluvial Flooding Definition
6.34NI-wide·PPS 15 Planning and Flood Risk (Revised)
Pluvial or surface water flooding occurs as a result of high intensity rainfall which overwhelms natural or man-made drainage systems resulting in water flowing overland and ponding in depressions in
drainageflood-risksurface-water