Private Nuisance
Rule
A private nuisance is a non-trespassory invasion of another’s interest in the private use and enjoyment of land. Liability exists when the invasion is intentional and unreasonable, or results from negligent, reckless, or abnormally dangerous conduct (Restatement 2d §822).
Elements (Intentional Nuisance)
- Intentional conduct — defendant knows (or is substantially certain) that the conduct is invading plaintiff’s interest (Restatement 2d §825).
- Unreasonable invasion — either:
- (a) The gravity of the harm outweighs the utility of the actor’s conduct (§826(a)); or
- (b) The harm caused is serious and the financial burden of compensating for it would not make continuation of the conduct not feasible (§826(b)).
Gravity of Harm Factors (§827)
- Extent and character of harm.
- Social value of the use or enjoyment invaded.
- Suitability of the use to the locality.
- Burden on plaintiff of avoiding harm.
Utility of Conduct Factors (§828)
- Social value of the primary purpose.
- Suitability to the character of locality.
- Practicability of preventing or avoiding invasion.
Remedies
- Injunction: available where harm is substantial.
- Permanent damages: alternative to injunction, compensating for diminution of property value (NY Rule from Boomer v. Atlantic Cement Co.).
- Coase Theorem: in a world without transaction costs, the rule of liability does not affect efficiency; impose liability on the least-cost avoider to address collective action problems among neighbors.
Trespass vs. Nuisance
- Trespass: direct physical invasion protecting possessory rights; no actual damages required for intentional trespass.
- Nuisance: non-trespassory invasion protecting use and enjoyment; requires proof of unreasonableness and actual harm for intentional nuisance.
Policy
- Balances competing land uses in a market economy.
- Industrial activity creates ongoing intentional nuisances that courts may address by permanent damages rather than injunctions to preserve economic activity.
- Coase: private bargaining may be more efficient than litigation absent transaction costs.
Key Cases
- Boomer v. Atlantic Cement Co. — NY; permanent damages instead of injunction against cement plant; economic reality prevails over property rights.
- Martin v. Reynolds Metals Co — fluoride particles from aluminum plant constitute trespass (direct invasion causing harm); trespass and nuisance overlap.