Low Density

Side-by-Side

Twin

Form: Two units with one shared vertical wall, three open sides, and external entrances. Twins are also known as duplex (side-by-side) outside of the region. Units may be located on one or separate parcels. Missing middle twins generally lack frontal garages. From the outside twins will appear as small to medium single-unit houses.

Twin Drawing

Local presence: Twins are found throughout the county. Traditionally twins were built meeting missing middle forms, while many twins continue to be built, many are too large to be considered missing middle housing.

Twin Photo 1
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Zoning considerations: Municipalities should consider encouraging the development of twin units by allowing twins by-right. This may require amending districts currently allowing twins by special exception or conditional use or expanding the districts where twins are permitted. Additional municipal considerations as they relate to twins include: permitting smaller minimum lot sizes, requiring sidewalk construction and utility connections for new units, and ensuring setbacks are at an appropriate size to maintain neighborhood integrity.

Zoning ordinance examples