An application has just been submitted for the retrospective approval of the lockers. The application isn't technically complete (some documents are unclear or missing) at the time of writing, but it is very unlikely to be permitted
A resident brought to our attention these click and collect lockers in Beckenham Lane. Installing these is covered by Schedule 2, Part 7, Class C ‘Click & Collect facilities’ of The Town and Country Planning (General Permitted Development) (England) Order 2015. In essence as the site is in a Conservation Area (so-called article 2(3) land), these lockers cannot be installed without formal planning permission and until this is granted (which it won't be - if it is ever applied for) they remain 'unauthorised'.