53 Pa. Stat. § 16397
No street shall hereafter be added to any confirmed plan of the city of Philadelphia, until the same shall have been approved by the board of surveyors as to location, width and grades: Provided, That an appeal may be taken to the court of quarter sessions of the city and county of Philadelphia at any time within three months after said board of surveyors shall have finally confirmed any plan as aforesaid, when said court may, after a hearing, confirm said plan as submitted or remand it back to the board of surveyors for reconsideration and revision. All plans and revisions of plans of land laid out in plots, or building lots, and the streets, highways, alleys or other portions of the same intended to be dedicated to public use; or the use of purchasers or owners of lots fronting thereon, or adjacent thereto, located within the city limits shall be recorded in the office of the recorder of deeds after submission to, and approval by, the board of surveyors. And it shall not be lawful to receive or record any such plan in any public office unless the same shall bear thereon, by endorsement or otherwise, the approval of the board of surveyors. The approval of any such plan by said board shall not impose any duty upon the city concerning the improvement or maintenance of any such dedicated streets or highways until the proper authorities of the city shall have made actual appropriation for such improvements and maintenance, and the disapproval of any such plan by the board of surveyors shall be deemed a refusal of any proposed dedication. The owners and purchasers of such lots shall be conclusively presumed to have notice of public plans, maps, and reports of the said board affecting such property within its jurisdiction.
53 P.S. § 16397