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A municipality may express an interest in acquiring specific land (or easements thereon) for trails, streets, parks, open space networks and other public purposes by establishing an “official map” that “reserves” this land. If a landowner seeks to develop reserved land, the municipality has a year to pursue acquisition of the land from the owner before the owner may freely build or subdivide.
A municipality may more effectively provide for future trails, parks, networks of open space, road improvements, or other public uses by identifying the location of key public grounds and infrastructure in advance of the public’s need and reserving the necessary land on an official map. By reserving the land, the municipality expresses its intent to acquire that specific land at some future date. This expression of intent does not affect existing property ownership; landowners still own and control their land. However, the owners are constrained in building on, subdividing or otherwise developing the reserved land until (1) they receive a special encroachment permit or (2) they provide written notice of intent to develop and then allow the municipality up to a year to acquire the land from them.
The municipality and landowner may negotiate the sale of the reserved land or an easement, or they may agree to an alternative approach that will still meet the public need. If negotiations fail, the municipality may use its powers of condemnation, although municipalities rarely exercise these powers. If the municipality does not acquire the land within a year of the notice, the reservation lapses and the owner is free to build or subdivide following the normal regulatory process.
Adoption of an official map is appropriate for a county or local municipality that has enacted a comprehensive plan and has a clear sense of where future parks, trails, streets or other public infrastructure and areas will be needed. Sixty-four or more Pennsylvania municipalities and one county have adopted official maps as of early 2011. Most officials surveyed from these local governments indicated that they believe the planning tool is a worthwhile and effective means of securing lands for future needs.
Benefits of adopting an official map include the following:
To implement an official map, you will need the following:
A comprehensive plan (and preferably solid zoning and subdivision ordinances that are consistent with the comprehensive plan).
Willing and committed municipal board and planning commission members as well as legal counsel.
A potential obstacle to official map adoption is that landowners, developers and others may have strong concerns that the municipality will use condemnation powers to acquire land reserved on the official map. Note that, in reality, condemnation is hardly ever used.
An official map shows the locations of planned future public lands and facilities such as streets, trails, parks and open space. The official map expresses a municipality’s interest in acquiring these lands for public purposes sometime in the future and notifies developers and property owners of this interest. Official maps may be used by townships, boroughs, cities, and counties. An official map is not a municipal base map, existing or future land use map, a zoning map, or any map in a comprehensive plan, though these can be used to help identify areas for the official map ordinance. Section 107(b) of the Municipalities Planning Code (MPC) defines an official map as a “land use ordinance” with the map as the primary component of an official map ordinance. If a landowner seeks to build on or subdivide land noted on the official map, the municipality has up to a year to acquire the land from the owner before the owner may freely build or subdivide.
Sixty-four or more Pennsylvania municipalities and one county have adopted official maps as of early 2011. These municipalities are located in 15 counties. The greatest concentration is found in eastern and southcentral Pennsylvania, but the official map is also used in Centre, Allegheny, Butler and Erie Counties. An inventory that describes the focus (transportation, trails, parks, etc.) of each map can be found in Appendix A of “The Official Map: A Handbook for Preserving and Providing Public Lands and Facilities.” Most local government officials interviewed for this guide found the official map to be a worthwhile and effective means of securing the areas and improvements included on the map.
The first edition of this guide was authored by Frone Crawford, Esq., Andy Loza, David Albright and Jason Smith and edited by Andy Loza. Nicole Faraguna managed the project. The Pennsylvania Land Trust Association (PALTA) completed this edition in late 2010 with support from the William Penn Foundation and the Pennsylvania Department of Conservation and Natural Resources (DCNR) Bureau of Recreation and Conservation “Growing Greener” Program.
PALTA and DCNR then formed a partnership with PennDOT and the Pennsylvania Department of Community and Economic Development to develop a more expansive guide, the end result being the publication of “The Official Map: A Handbook for Preserving and Providing Public Lands and Facilities” in June 2011. Also joining in the collaboration were the Pennsylvania State Association of Boroughs, Pennsylvania State Association of Township Supervisors, Chester and York County Planning Commissions, Brandywine Conservancy, and the Pennsylvania Chapter of the American Planning Association. Representatives from these organizations reviewed and commented on drafts of the publication. The Handbook may be downloaded from the ConservationTools.org library.
The guide presented here contains much of the same content as the Handbook but with various edits and additional content including coverage of the intersection of conservation, the municipal codes, eminent domain and official map reservations.
Nothing contained in this or any other document available at ConservationTools.org is intended to be relied upon as legal advice or to create an attorney-client relationship. The material presented is generally provided in the context of Pennsylvania law and, depending on the subject, may have more or less applicability elsewhere. There is no guarantee that it is up to date or error free.
Copyright © is held by the Pennsylvania Land Trust Association
Text may be excerpted and reproduced with acknowledgement of ConservationTools.org and the Pennsylvania Land Trust Association.