OPINION OF THE COURT
This is an appeal from an order of the Commonwealth Court 1 which reversed an order of the Court of Common Pleas of Philadelphia County directing the issuance of a writ of mandamus to compel reinstatement of revoked zoning and building permits held by Lindy Homes, Inc., the appellant herein.
In 1972, the appellant, as owner of a tract of land in a zoning district where multi-family dwellings were permissible, was granted zoning and building permits for construction of a thirty unit apartment building. The permits, issued by the Department of Licenses & Inspections of the City of Philadelphia (hereinafter Department), were revoked in March, 1972, when a determination was made that the thirty unit structure would not be in compliance with applicable ordinances. Consequently, appellant altered the design of the building to provide for twenty-three units, rather than the original thirty, thereby achieving full compliance with all applicable land use regulations. In response to this design change, the Department issued new zoning and build *481 ing permits on September 27, 1973. On November 1, 1973, however, an ordinance was introduced in the Philadelphia City Council seeking to rezone the subject building site to prohibit multi-family structures. This ordinance was adopted on December 14, 1973, and, on January 3, 1974 and January 4, 1974, respectively, the Department, citing the change in zoning classification, revoked appellant’s zoning and building permits.
No administrative appeal was taken following the permit revocations, but rather, on April 22, 1974, a complaint in mandamus was filed seeking to compel reinstatement of the building permit, 2 and claiming damages. The trial court ordered reinstatement of the zoning and building permits, and awarded damages in the amount of $3,500.00 against the Department’s Commissioner, Dominic Sabatini, the appellee herein (hereinafter Commissioner). The Court of Common Pleas, sitting en banc, affirmed reinstatement of the permits, but increased the damage award to $35,245.00. Commonwealth Court reversed, holding that appellant’s remedy was to have appealed the permit revocations to the Zoning Board of Adjustment, and that, due to the availability of that remedy, mandamus was improper.
The sole issue on the instant appeal is whether mandamus is an appropriate vehicle by which appellant may seek reinstatement of the permits in question.
3
In
Lhormer v. Bowen,
The Commissioner contends, and the Commonwealth Court held, in effect, that our decision in
Unger v. Township of Hampton,
In the instant case, the Commissioner does not even allege there to have been such non-compliance with ordinances in effect at the time of issuance of appellant’s permits as would support their revocations; rather, the revocations were occasioned solely in response to the purported change in zoning classification of appellant’s property adopted subsequent to issuance of the permits. It is well established that a zoning ordinance cannot be retroactively applied to effect revocation of permits obtained by a landowner prior to
pendency
of that ordinance.
Id.; Lhormer v. Bowen,
supra.;
Lened Homes, Inc. v. Philadelphia Department of Licenses,
The Commissioner alleges that, under the Philadelphia Building Code, building permits expire when construction activity is suspended for a period of six months or not commenced within six months of the issuance of a building permit, and that, due to a lack of construction activity at appellant’s site prior to the January 4, 1974 permit revocation, the permit was properly revoked, and, thus, that appellant’s right to the permit is not clear. We find no merit in this assertion, since the building permit in question was issued on September 27, 1973, and, quite plainly, six months did not then elapse before January 4, 1974. Since a clear right to the permits in question may therefore be asserted, *484 mandamus is an appropriate remedy by which reinstatement of the permits may be sought.
Order of the Commonwealth Court reversed.
Notes
.
Lindy Homes, Inc. v. Sabatini,
. Although the complaint in mandamus, on its face, sought reissuance of the building permit alone, the courts below considered the complaint as seeking reissuance of the building and zoning permits, since revocation of the latter induced revocation of the former.
. The issue, of appellant’s entitlement to damages is not under review in the instant appeal.
. Since the Commissioner does not argue that the rezoning ordinance was pending at the time of the permit revocations, we need not presently further examine the matter of pendency.
