lisäasunto

A lisäasunto, translating to "additional dwelling unit" or "accessory dwelling unit" (ADU) in English, refers to a secondary housing unit on a single-family residential lot. These units are self-contained, offering independent living facilities such as a kitchen, bathroom, and sleeping area. Lisäasunnot can be attached to an existing home, such as a basement or attic conversion, or be a detached structure on the same property, like a backyard cottage.

The purpose of a lisäasunto is often to increase housing density within existing neighborhoods without altering the fundamental character of single-family zoning. They can provide housing options for family members, generate rental income for homeowners, or offer affordable living solutions. Regulations regarding the size, placement, and permitting of lisäasunnot vary significantly by municipality. These regulations are designed to address concerns related to neighborhood aesthetics, infrastructure capacity, and privacy.

In Finland, the term lisäasunto is increasingly relevant as urban areas face housing shortages and a desire for more diverse housing stock. The development and implementation of clear guidelines for lisäasunnot are crucial for their successful integration into communities. They represent a strategy to utilize existing land resources more efficiently and promote varied housing types within established residential areas.