Whether the case remained a live Article III controversy after the named student tenants moved out of the house.
Holding
Yes. The dispute was not moot because the ordinance continued to affect the owners' property and its rental value.
Reasoning
The Court concluded that the tenants' departure did not eliminate the controversy. Zoning restrictions commonly affect the value and marketability of the regulated property, and the owners had a concrete economic stake in whether they could rent their house to groups such as the six students.
The Court emphasized that constitutional challenges to zoning ordinances need not await a precise calculation of the ordinance's financial effect on a particular parcel. Here, the owners had lost six tenants and could replace them with only two unrelated tenants, making the ordinance's effect on rental opportunities sufficiently real to sustain the action.