This residential structure combines elements of two distinct housing types. It features two separate living units within a single building, yet is designed and functions as a detached residence on its own lot. Each unit typically has its own entrance, utilities, and living spaces, offering a degree of privacy similar to separate houses. An example would be a building with two self-contained apartments, each with its own kitchen, bathrooms, and bedrooms, all situated on a single plot of land owned by one entity.
This housing arrangement presents several advantages. It can offer increased affordability compared to purchasing two separate detached houses. The property owner may reside in one unit and rent out the other, generating income to offset mortgage costs. This configuration can also be suitable for multi-generational families who desire close proximity but separate living spaces. Historically, this type of dwelling has evolved as a response to increasing land costs and a desire for more efficient land use in urban areas.