[Tagging] Postal verses locational addresses

[Warin]

HI,

I am coming across cases of OSM entered addresses on buildings that are 
some kilometers from the nominated address location. These appear to be 
'gated communities', 'retirement villages' and possibly other things 
that use some official address and thus keep deliveries from going to 
the actual location but going through the office.

I can probably lump all of a group together in some kind of relation 
(e.g. landuse) that would reduce the warnings down from many to one. But 
I wonder if these postal addresses would be better entered in some other 
way. One issue is a routers to some address having more than one result 
- all with the same address..

Ideas?