An Accessory Dwelling Unit (ADU) is a self-contained living space that is either attached or detached from the main house on a residential property. ADUs are designed to provide independent living quarters and are typically smaller in size compared to the main residence. They serve as a separate and fully functional living unit, complete with its own entrance, bathroom, kitchen, and living areas.

ADUs are versatile structures that can be adapted to various configurations and styles depending on the available space and local regulations. Here are some common types of ADUs:

1. Detached ADU: A separate structure located on the same property as the main house. It can be a converted garage, a standalone cottage, or a newly constructed building.
2. Attached ADU: Integrated into the existing main house, typically as an addition or by converting an existing section of the house. It may have a separate entrance or share an entrance with the primary residence.
3. Basement ADU: Created by converting the basement of the main house into a separate living unit. This type of ADU can offer additional privacy and functionality.
4. Garage Conversion ADU: Converting an existing garage into a livable space by making necessary modifications to create a self-contained unit.

ADUs have gained popularity due to their potential to address housing shortages, provide affordable housing options, and accommodate multigenerational families or rental opportunities. They can serve as a home for elderly family members, young adults, or renters, offering them privacy while maintaining proximity to the main residence.

ADUs can be designed to be energy-efficient, utilizing sustainable materials and incorporating green features like solar panels, efficient insulation, and energy-saving appliances. They often have open floor plans, clever storage solutions, and thoughtful design to maximize the available space.

It’s important to note that regulations and building codes for ADUs vary by location, and obtaining necessary permits and approvals from local authorities is crucial before constructing or modifying an ADU.