How is 'infill development' defined in planning?

Infill development is primarily defined as the process of developing vacant or underused parcels in urban areas. This approach aims to optimize land use within existing urban settings, making the most of underutilized properties to promote density, reduce urban sprawl, and enhance the overall vitality of neighborhoods. By filling in gaps in developed areas, infill development can provide housing, commercial space, and community amenities, leading to more sustainable urban environments.

This type of development is typically in line with smart growth principles, which emphasize the efficient use of land, enhancing public transport options, and creating walkable communities. Infill projects can also contribute to revitalization efforts in older neighborhoods, helping to attract new residents and businesses.

The other options reflect different aspects of urban and suburban planning but do not align with the specific definition of infill development. For instance, creating parks in suburbs might enhance green spaces but does not repurpose existing developed land. Developing new suburban neighborhoods generally expands urban boundaries rather than utilizing existing areas. Constructing skyscrapers in downtown areas represents vertical growth but does not specifically address the renovation or utilization of vacant or underused sites within urban landscapes.