Brennan v. City of Milwaukee

The general principles relating to legislative power to require existing buildings to meet certain minimum requirements in the interest of public health and safety are well set forth in Adamec v. Post (1937), 273 N. Y. 250, 255, 7 N. E. (2d) 120, 122:

“At the point where economic self-interest ceases to be a sufficiently potent force for the promotion of the general welfare, or, indeed, becomes a force which may actually injure the general welfare, the legislature may intervene and require that buildings intended for use as tenement houses or multiple dwellings shall conform to minimum…