Opinion by
This is an appeal from a decree affirming a decision of the Zoning Board of Adjustment of Sharon Hill, which refused to grant appellants a variance permitting them to construct row houses in that community. Appellants attack the constitutionality of the ordinance which prohibits row houses on the theory that it invades vested rights and is an unreasonable classification.
Appellants’ “vested rights” are said to stem from the expenditure between 1928 and 1930 of $27,971.16 for installation of water, sewer, and gas mains, and street curbing in accordance with an established plan for development of their property. Laterals from the various mains were so installed as to accommodate row housing, and maximum use of them can be made only if such housing is permitted. At the time of their installation, no permit for the improvements was required or issued and no zoning ordinance prohibited the type of housing contemplated. Appellants’ theory is that, when they in good faith effected these substantial improvements with a view toward using the property for row housing, they acquired a vested right to proceed with such a development.
Adoption of appellants’ contention would require a substantial enlargement of the rule announced by this Court through Chief Justice Moschzisker in
Herskovits v. Irwin,
We adhere to the rule that a vested right to build
in futuro
a structure which violates a zoning ordinance can only be acquired by first securing a permit and thereafter expending substantial sums in reliance thereon. This does not mean that a building actively under construction at the time of the passage of an ordinance
could not
qualify as a non-conforming use. This was the basis for the decision in
City of Coldwater v. Williams Oil Co.,
The conclusion that no vested rights arose in this case is strengthened by appellants’ failure to substantiate their contention that these. improvements would have to be removed at an additional cost of approximately $30,000 if this land were used for anything but row housing. It is, of course, true that
maximum
utility cannot be made of the improvements if anything other than row houses is constructed, since there would then be an excess number of laterals. But no plausible reason has been given why appellants cannot simply abandon these buried and unused laterals or such part of them as cannot be adapted to the permitted classes of housing. One of the appellants, Floyd B. Mousley, admitted under cross-examination that twin houses complying with the ordinance
could
be constructed without removing the utilities. It has never been the rule that a,zoning ordinance must permit each owner to make
maximum
use of his property. Limitation of use is fundamental to all zoning and formed the basis for the earliest constitutional attacks:
Euclid v. Ambler Realty Co.,
It is true, however, that the restrictions imposed on use of private property by a zoning ordinance must be reasonable:
Taylor v. Moore,
Decree affirmed at appellants’ cost.
