§ 26-1. True lines required before construction.

It shall be unlawful for any person, firm, or corporation to dig or lay the foundation of any building or to construct or reconstruct any building or any premises binding or abutting on any existing or proposed public or private street, lane, or alley, or to construct any wall or fence binding or abutting on any such street, lane, or alley before the true lines of all such streets, lanes, and alleys have been duly ascertained, fixed, and marked on the ground, either by the Department of Public Works as authorized in § 1-6 or § 1-7 of this article or by a duly licensed private land surveyor, unless the Director of Public Works certifies that in his opinion the true lines of all such streets, lanes, and alleys are already sufficiently marked on the ground by the existing physical improvements or landmarks.