“Missing Middle” housing types help fill the gap between traditional detached housing units and large multi-unit apartment or condominium buildings – generally including duplexes, triplexes, townhomes, and small apartment structures. The market analysis for Lee’s Summit illustrates that there will be a need for missing middle housing types over the next two decades, which can be accommodated primarily in the new Activity Centers (with guidance from the place types), but also as infill development in existing mature neighborhoods and along the community’s corridors—as referenced above. The incorporation of missing middle housing throughout the community – particularly in proximity to existing infrastructure and transit – provides a larger range of housing choice and offers increased affordability for a larger portion of the community.
Scale and form parameters are key to ensuring that missing middle housing supports the context of an area; it is not necessary to introduce large buildings in sensitive areas to create more housing options. Most of these missing middle types fit into structures that are a similar scale to existing housing: not more than 2.5 stories, no more than 55-75 feet wide and approximately 45-60 feet deep. While most missing middle housing types are appropriate within the urban or neighborhood place types, some of the denser housing types could reach up to 3-4 stories and are only appropriate in the context of higher density, mixed-use development.
The following characteristics provide guidance and considerations for incorporating missing middle housing in the community. Shared characteristics common to missing middle housing types include: