US Supreme Court Upholds Land Use Doctrine of Merger of Lots

Land use cases do not often wind their way to the U.S. Supreme Court. When they do, the decision is bound to have a ripple effect throughout the land.

In 1926, in Village of Euclid v. Ambler Realty, 47 S.Ct. 114 (1926), the Supreme Court upheld what is known today as Euclidean zoning use-based zoning districts regulating residential and nonresidential uses, together with their area and bulk standards. At issue in Village of Euclid was the exercise of the police power were the land use regulations reasonable? Did they evince a substantial relation to the public health, safety, morals or general welfare?

The right to use and enjoy one's property is not unlimited. When local regulations go too far, as in a local ordinance which is unreasonable, arbitrary or even confiscatory, that municipal exercise may be deemed an unconstitutional regulatory taking.

When does a local government's attempted exercise of its zoning function run afoul of constitutional protections?

Fast forward to 2017 and the Supreme Court's examination of the doctrine of merger (merger of lots), a doctrine well known to Pennsylvania land use practitioners, developers and landowners. In the world of zoning, this doctrine obliterates lawfully recorded property lines and compels the consolidation of abutting and separately deeded parcels where those parcels are in common ownership, regardless of whether they were acquired at the same time or years apart.

The doctrine of merger is not a creature of common law, nor, for that matter is it contained in the state's land use enabling legislation, the Pennsylvania Municipalities Planning Code (MPC), which applies everywhere in the commonwealth with the exception of Philadelphia and Pittsburgh. The doctrine of merger is instead the subject of municipal regulation which can, and does vary from city, to borough, to township, to home rule community. In Pennsylvania, the language of the regulation may differ, but often it focuses on whether the abutting parcels are held in what is defined as "single and separate ownership."

As one court stated: "In sum, analysis by the courts of the effect of merger provisions adopted by local governing bodies on adjoining lots held in common ownership when one of the lots is rendered nonconforming by a subsequent zoning ordinance has given rise to a merger of lots doctrine. However, this body of law has no application in the absence of merger of lots provision in the zoning ordinance adopted by the local governing body in the jurisdiction where the lots are located. The common law may not be employed to restrict the use of nonconforming lots; any restriction is purely statutory and is a matter committed to the legislative discretion of local governing bodies by the MPC," as in Loughran v. Valley View Developers, 145 A.3d 815, 823 (Pa. Cmwlth. 2016). The ordinance language in that case was as follows: "Where two or more adjacent lots, one or more of which is nonconforming, are owned by the same owner, and the ownership of the lots is concurrent, such lots shall be combined to create conforming lots, or to lessen the non-conformity if it is not possible to create all conforming lots."