Direct answer
What does Nonconforming use mean?
A land use that lawfully existed before a zoning change but does not comply with the new zoning rule.
Exam cue: A lawful nonconforming use may continue subject to local rules on abandonment, expansion, change and rebuilding.
What does it look like in a question?
New York example
A repair shop remains after its district is rezoned for residential use.
Common exam trap
What should you not confuse it with?
An illegal use does not become lawful merely because it has continued for a long time.
Related land use terms
Area variancePermission to deviate from a dimensional or physical zoning requirement.Building codeA set of government standards for construction, alteration, occupancy and building safety.Certificate of occupancyAn official document confirming that a building or space may be occupied for the approved use under applicable code and local requirements.Eminent domainThe government's power to take private property for public use with just compensation as required by law.Police powerThe government's authority to regulate for public health, safety, morals and general welfare.Site planA drawing and supporting materials showing the layout and design of a proposed development or use.
Sources used2 references with section locators
The curriculum citation confirms exam scope. Definition and rule citations support the explanation itself. Links and locators were checked on August 26, 2026.
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