Reunatila

Reunatila is a term found in Finnish planning literature describing a transitional boundary space between built environments and surrounding landscapes. Etymologically, it combines reunaa 'edge' or 'limit' and tila 'space', reflecting its function as a zone that mediates between urban form and the natural or rural backdrop.

In practice, reunatila denotes areas where development tapers into open land, often featuring mixed land uses, semi-permeable boundaries, and buffers for ecological or cultural values. It may accommodate small-scale housing, agriculture, roads, and green corridors, while preserving access to nature and maintaining visual and environmental continuity. The concept emphasizes permeability for pedestrians and wildlife and gradual changes in scale and density.

Planning and policy applications include design guidelines for setbacks and landscape buffers, connectivity corridors, and sustainable peri-urban development. Reunatila is used to balance growth with conservation, addressing issues such as land fragmentation, biodiversity, and the provision of public space. Practitioners consider zoning, infrastructure, and the management of externalities like noise and dust.

Usage varies by region and discipline, and reunatila is more common in Finnish contexts than in international planning discourse. As a concept, it relates to boundary zones, buffer zones, and transition areas and is often discussed alongside green belts and peri-urban development.