[Talk-GB] UK addresses

[Will Phillips]

I use addr:flats regularly. I've recently been mapping high density 
areas around the city centre where a high proportion of the residential 
addresses are flats, often in converted factories. Here it seems 
worthwhile to add flat numbers when they are displayed outside the building.

Here's an example of a street where 12 buildings/entrances have been 
tagged with addresses, but that expands to 191 addresses if the flats 
are listed separately: 
http://osm-nottingham.org.uk/?z=18&lon=-1.14193&lat=52.95324&bgl=OSM,1,17&s=%22Woolpack%20Lane%22&st=AddressSearchJson

I use addr:unit as well. I use that for retail/commercial/industrial 
units rather than residential. If I tag addr:flats=1-10 then I'd assume 
that refers to 10 separate addresses, whereas I would assume 
addr:unit=1-3 is a single address. That's undocumented and others may 
disagree.

Cheers,
Will