Downzoning of lands at the municipal level as a way of limiting development and preserving open space and agricultural land has been taking place in New Jersey for years. Downzoning is the practice of increasing the required lot size for the development of a single family home or, in other words, reducing the density of development permitted under the existing zoning ordinances. These zoning ordinances are typically “hot button” issues which often spawn litigation regarding their validity under the Municipal Land Use Law (N.J.S.A. 40:55D-1 et seq.). Most downzoning litigation does not involve a challenge to the validity of the ordinance as a whole (although that certainly does occur), but in most instances involve a challenge to the validity of the ordinance as applied to one or more specific parcels of property. While a zoning ordinance may be valid in general terms that does not preclude a judicial determination that the ordinance in question is not valid as applied to a specific and distinct parcel of property.
New Jersey law on this issue began to coalesce with the case of Bow & Arrow Manor v. Town of West Orange, 63 N.J. 335 (1973) in which the New Jersey Supreme Court found that although zoning ordinance changes regarding the uses permitted in various zones were valid in general, they were nevertheless invalid as applied to specific properties that were the subject of the lawsuit. Fourteen years later, in Zilinsky v. Zoning Bd. of Adj. of Verona, 105 N.J. 363 (1987), the New Jersey Supreme Court sustained the validity of an ordinance imposing off-street parking requirements in a residential zone and, more particularly, the requirement that one of the two required off street parking spaces had to be provided in a garage. While these two cases did not directly deal with downzoning issues, the legal principles developed in these cases regarding whether or not a zoning ordinance provision was sustainable formed the foundation for the later review of zoning ordinances involving downzoning.
In Riggs v. Long Beach Township, 109 N.J. 601 (1988) the New Jersey Supreme Court invalidated a zoning ordinance that changed the permitted density from 1 unit per five thousand square feet to 1 unit per ten thousand square feet. The court reasoned that the zoning ordinance was enacted for the purpose of depressing the value of the plaintiff’s land so that the municipality could acquire it cheaply. In doing so, the court developed a four part test for analyzing the validity of a zoning ordinance that is challenged:
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