Nuisance describes activities or conditions that unlawfully interfere with a person’s use or enjoyment of land, or sometimes with public rights, such as rights of way or public health. It is mainly a common law concept, developed through case law across England and Wales, Scotland, Northern Ireland and Ireland, with broadly similar usage but some doctrinal differences.Private nuisance concerns substantial and unreasonable interference with a person’s land or rights over land (for example, noise, smells, fumes, flooding or structural encroachment). Public nuisance involves conduct that materially affects the reasonable comfort or convenience of a class of the public (for example, obstruction of a highway or large-scale pollution). In some contexts, statutory nuisance is defined and regulated by legislation, particularly environmental and public health statutes, and may sit alongside or replace common law remedies.Nuisance claims are central in property litigation, environmental law, planning disputes and regulatory enforcement. Remedies may include injunctions, damages, or abatement. Liability may arise from creating, adopting or continuing a nuisance, and issues such as sensitivity of the claimant, locality, planning permission and prescription are often critical in practice.