There are two main elements to a claim of private nuisance and within these, there are multiple factors that need to be taken into account. The first element is the unlawful (unreasonable) use of land. Firstly, we look at the locality factor and wether the character of the neighbourhood changes. OIR Leman V Montague Loss of amenity, interference was unreasonable. OIR St Helen’s Smelting for physical damage, location is irrelevant. Apply relevent.