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Traditional Neighborhood Development creates compact, mixed-use, non-automobile- dependent neighborhoods and communities. It serves the needs of people and accommodates growth with minimal waste of land.
Traditional Neighborhood Development (TND) is a development strategy designed to create complete neighborhoods and communities that mimic those built in pre-1950s America before the shift to low-density, automobile-dependent suburban developments. Several features characterize TNDs: concentrated density, mixed housing types, interconnected street grids, a discernable center (like a town square or plaza), and a variety of commercial establishments to meet the needs of residents. With sidewalks, traffic calming measures, hidden parking, and access to public transportation, TNDs reduce dependence on cars and create safer streets for pedestrians and cyclists. TNDs also emphasize access to schools, parks, churches, civic buildings, and other community spaces.
TNDs can involve development of a previously undeveloped area (greenfield development) or construction on vacant or underdeveloped parcels within an already developed community (infill development). Adaptive reuse of existing buildings is common in the latter case. Unlike New Urbanism, the broader movement that includes all scales of planning and development, TND is limited to the neighborhood or town scale.
Though often developer-driven, TNDs are regulated by the zoning, subdivision, and land development ordinances of local governments. In conjunction with sound comprehensive planning and zoning, a TND can accommodate development in planned growth areas, relieving farmland and other open space from development pressure (especially compared to sprawling single-unit, low-density developments which use space far less efficiently). Municipalities can also craft specific TND ordinance provisions to ensure that developments meet other conservation-related objectives like ensuring proper stormwater management, protecting natural features, and providing opportunities for outdoor recreation.
Zoning ordinance provisions have helped foster successful TNDs in many locations across Pennsylvania and the United States. See the “Examples” section below for a list of notable TNDs.
A municipal zoning ordinance can incorporate TND as an overlay district, offering landowners who own tracts so zoned the option of establishing land uses subject to the TND overlay provisions. Alternatively, municipalities can establish TND as a stand-alone zoning district, in which all permitted uses are subject to the TND provisions. See “Enacting a TND Zoning Ordinance” for more information.
Adding the incentive of Transferable Development Rights [i] (TDRs) to TND ordinance provisions can enhance the conservation benefits of a TND by encouraging the developer to purchase TDRs from priority conservation areas and use them to enhance the development potential of a planned TND project. For example, municipalities can construct TND ordinance provisions so developers are required to use TDRs to build at the upper ranges of allowed residential density or commercial square footage. The TND ordinance provisions addressing development design can help ensure that development in the TDR receiving area is consistent with the community development objectives.
In 2009, the U.S. Green Building Council added the Neighborhood Development category to its LEED (Leadership in Energy and Environmental Design) certification program. The most widely used third-party verification for environmentally friendly buildings, LEED rates projects based on a set of criteria including energy efficiency, water use, emissions, and building materials.
The Neighborhood Development category covers new or redevelopment projects containing residential, non-residential, or mixed uses. TNDs, with their focus on efficient land use and non-motorized transportation, are well-positioned to meet the LEED standards for this category. LEED-certified status can supplement marketing efforts, helping promote a TND to potential residents, business owners, and customers. The certification criteria can also offer guidance for developers, planners, and municipal officials seeking to plan an environmentally friendly development.
As of 2017, nearly 500 projects around the world, including five in Pennsylvania, have received or are awaiting Neighborhood Development certification. See the Council’s Neighborhood Development Guide for more information.
Incorporating TND provisions into a municipality’s zoning ordinance requires political and community support. The most frequent obstacle in this process is opposition from residents or local leaders who are uncomfortable with the relatively dense development of TNDs. Careful planning, combined with extensive community outreach and education efforts, may be able to prevent, mitigate, or overcome this opposition. Public and political support for TND is also crucial to forming working relationships with developers committed to the TND model, who are less likely to pursue a project in an area where TND faces fierce opposition.
Poorly crafted TND ordinance provisions can lead to developments that are inconsistent with the community’s vision and goals or allow developments that are incompatible with surrounding land uses. Municipalities can avoid these pitfalls by engaging the public and identifying valued resources in order to determine the most suitable areas for TND proposals. Hiring a professional planning consultant with both community visioning and TND ordinance writing experience, while not essential, can be very helpful. This is especially true for proactive municipalities that want to develop a master plan and TND ordinance provisions in advance of receiving an actual TND proposal.
Developers generally don’t consider building TNDs for several reasons:
In many—but not all—cases, development of a complete TND will require large tracts of vacant or under-developed land, ideally with immediate or planned access to roads, public transit, and public water and sewer systems. Development of smaller individual tracts rarely provides the critical mass of development needed to support a market for community amenities or commercial uses on their own, regardless of what zoning may permit.
Because land ownership patterns are fragmented and the real estate market seldom supports town-scale development all at once, a master plan for the entire area zoned for TND is critical in order to designate appropriate locations for the various components that will comprise the TND. As individual parcels are developed in alignment with the master plan, the overall development pattern of the TND will gradually take shape. Incentive zoning provisions, which promote the right TND components in the right places, are just as important as the master plan. They may be accompanied by concurrent disincentives in the base zoning provisions so that properties are held available until the real estate market is ripe for the desired TND components.
Smaller land holdings located in the midst of or on the immediate edge of existing urban or suburban neighborhoods are a different case; the surrounding development provides a critical mass of population to warrant mixed-use development. However, even in these situations an overall TND master plan and appropriate zoning incentives are desirable to promote the right developments in the right places.
Typical TND ordinances should result in development that:
(Many sources offer some variation of these components; this list was adapted, in large part, from DPZ Partners, an architecture and town planning firm.)
An integral component of TND ordinance provisions is design criteria, which describes (in narrative and graphic formats) how a proposed TND project must meet the above goals in order to gain approval.
TND ordinance provisions should also address the following components:
Through a comprehensive planning process, determine the community’s ability to accommodate TNDs. This includes identifying valued natural and historic resources for protection, projecting population growth and future development pressure, and evaluating existing and future infrastructure for compatibility with TNDs. It also may require outreach to educate citizens, landowners, and officials about the benefits of TND. This education can occur through multiple channels such as workshops, meetings, municipal newsletters, and online resources.
Provide opportunities for citizens to participate in the design of the TND ordinance provisions. Before crafting the actual ordinance provisions, participants should collaborate with municipal officials in charrettes or visioning events to develop a conceptual community plan that reflects the vision of residents. This plan will ultimately help shape the TND ordinance provisions and ensure that TND developments align with the community’s values.
Implement the provisions. Often, the municipality’s code enforcement officer is responsible for interpreting and implementing the provisions. If this person lacks experience with TND ordinance provisions, the municipality should seek the continued assistance of land use planners or other design professionals to review the actual application of the TND ordinance when projects are proposed.
Revise the provisions over time to ensure that the TND ordinance continues to meet land preservation and other community development objectives. Address any conflicts that arise between the TND ordinance and other ordinances.
Each of the projects listed below is linked to a website that describes the traditional neighborhood development.
Explore more national and international case studies on the Urban Land Institute website.
In 2000, amendments to the Pennsylvania Municipalities Planning Code (MPC) explicitly enabled TND zoning ordinance provisions for the first time. (All local governments in the state, except Philadelphia and Pittsburgh, are subject to the MPC.)
The MPC requires that a comprehensive plan, and the ordinances necessary to implement it, provide for all possible land uses. A benefit of TNDs is that they can accommodate many of these land uses (various residential types, retail, commercial, and even certain types of light industrial) within a single defined growth area, or portion of a growth area.
While Pennsylvania law permits TNDs, it does not require them. Many zoning and subdivision ordinances ignore the option of TNDs and instead require large lots, wide streets, and separated types and densities of land use across the municipality. This situation is encouraged by decades of practice.
[i] TDR programs employ zoning ordinances that give landowners within valuable agricultural, natural, and cultural resource areas the option to legally sever the development rights from their land and sell these rights to another landowner or a real estate developer for use at a location appropriate for higher densities of development.
John Theilacker, AICP, and Tara Tracy, CPSS, of Brandywine Conservancy were the primary authors of the guide’s first edition (2009). Nate Lotze revised and expanded content for the second edition (2017). John Theilacker and John Snook, also of Brandywine Conservancy, reviewed the second edition draft, with Mr. Theilacker providing useful refinements and Mr. Snook contributing to the section “Development Patterns and Critical Mass.”
The Pennsylvania Land Trust Association published this guide with support from the William Penn Foundation and the Community Conservation Partnerships Program, Environmental Stewardship Fund, under the administration of the Pennsylvania Department of Conservation and Natural Resources, Bureau of Recreation and Conservation.
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.
© 2017, 2009 Pennsylvania Land Trust Association
Text may be excerpted and reproduced with acknowledgement of ConservationTools.org and the Pennsylvania Land Trust Association.