Barrier-free building not only means enabling people with disabilities to be more independent, but also to provide for old age. Building accessibility ensures that building facilities can be used by all people, regardless of age or disability.
Ideally, accessibility starts with the planning of the building, but existing houses or apartments can also be converted. The most important barrier-free criteria are the compensation of height differences, the avoidance of danger spots and sufficient orientation. DIN standards have been issued for the equipment: DIN 18040-1 specifies the barrier-free construction of public buildings and DIN 18040-2 the barrier-free construction of apartments.