[Tagging] Buildings mixing residential and commercial use

[Mateusz Konieczny]

On Sun, 30 Aug 2015 11:43:34 -0300
Severin Menard <severin.menard at gmail.com> wrote:

> Hi,
> 
> Is there a way to tag properly buildings mixing residential and
> commercial uses (typically shops on the basement opening on the
> street)? Building=commercial is defined as "A building where
> non-specific commercial activities take place", that does not
> describe what are the other activities taking place.
> This specific type of building is mixing commercial and residential
> activities is very common and would thus really deserve to be clearly
> mapped. ANy siggestion?
> 
> Sincerely,
> 
> Severin

building=commercial is quite suspect. Values of building tag are mixing
things like "building that was build as X" (for example
building=church) with current usage, some like building=barn require
both etc.

It seems that the best way is to use simply building=yes and tag more
rather than attempt more precise tagging.

For example, how one is supposed to tag building constructed as church,
that is used now for commercial purposes?

building=church? building=commercial?