Persons engaged in the erection, construction, reconstruction, wrecking, or repairing of any building, or the construction, or repair, of a sidewalk along any street, may occupy the public street space with such building material and equipment as long as is necessary if such persons shall make application to and receive a permit in writing from the Municipal official in charge of Municipal streets to do so; provided, no permit for the occupancy of the sidewalk space, and more than one-third (1/3) of the roadway of the public space adjacent to the real estate on which said building is to be constructed, erected, reconstructed, wrecked, or repaired shall be granted; and provided further, a suitable passageway for pedestrians shall be maintained within the public space included in the permit which shall be protected and lighted in the manner required by the official issuing the permit.