The Mount Laurel doctrine is a significant judicial doctrine of the New Jersey State Constitution. The doctrine requires that municipalities use their zoning powers in an affirmative manner to provide a realistic opportunity for the production of housing affordable to low- and moderate-income households.
The doctrine takes its name from the lead case in which it was first pronounced by the New Jersey Supreme Court in 1975: Southern Burlington County N.A.A.C.P. v. Mount Laurel Township (commonly called Mount Laurel I), in which the plaintiffs challenged the zoning ordinance of Mount Laurel Township, New Jersey, on the grounds that it operated to exclude low and moderate income persons from obtaining housing in the municipality.