The City may, at any time and from time to time, accept the dedication of land or any interest therein for public use and maintenance, but the City need not require, as a condition of the approval of a planned residential development, that land proposed to be set aside for common open space be dedicated or made available to public use [see Act 247, Article
VII, § 705(d)(1)]. In the event that the organization established to own and maintain common open space, or any successor organization, shall at any time after establishment of the planned residential development fail to maintain the common open space in reasonable order and condition in accordance with the development plan, the City may serve written notice upon such organization or upon the residents of the planned residential development setting forth the manner in which the organization has failed to maintain the common open space in reasonable condition, and said notice shall include a demand that such deficiencies of maintenance be corrected within 30 days thereof, and shall state the date and place of hearing thereon which shall be held within 14 days of the notice. At such hearing, the City may modify the terms of the original notice as to the deficiencies and may give an extension of time within which they shall be corrected. If the deficiencies set forth in the original notice or in the modifications thereof shall not be corrected within such 30 days or any extension thereof, the City in order to preserve the taxable values of the properties within the planned residential development and to prevent the common open space from becoming a public nuisance, may enter upon such common open space, and maintain the same for a period of one year. Such maintenance by the City shall not constitute a taking of such common open space, nor vest in the public any rights to use the same. Before the expiration of such year, the City shall, upon its initiative or upon the request of the organization theretofore responsible for the maintenance of the common open space, call a public hearing upon notice to such organization, or to the residents of the planned residential development shall show cause why such maintenance by the City shall not, at the option of the City, continue for a succeeding year. If Council determines that such organization is ready and able to maintain such common open space during the next succeeding year and, subject to a similar hearing and determination, in each year thereafter. The decision of Council shall be subject to appeal to court in the same manner, and within the same time limitation, as is provided for zoning appeals by the Pennsylvania Municipalities Planning Code, Act 247 of 1968, as amended. The cost of such maintenance by the City shall be assessed ratably against the properties within the planned residential development that have a right of enjoyment of the common open space, and shall become a lien on such properties. The City, at the time of entering upon such common open space for purpose of maintenance, shall file a notice of lien in the office of the Prothonotary of the County upon the properties affected by the lien within the planned residential development.