This article highlights how new forms of retail use are challenging the structure of the Use Classes Order and indicates that some local planning authorities are not prepared to accept that more innovative retail concepts can be regarded as shops.  The same issues apply to the business and residential use classes too.    Increasingly employment type uses are ceasing to resemble 'offices' and the co-living and Airbnb generation are pushing the boundaries of what uses should be considered as residential.   Maybe some thought now needs to be given to what changes need to be made to the Order to recognise the shifting concept of use classes.