[Tagging] Estate agent

[Martin Koppenhoefer]

the problem I see is not in the shop definition but within the office tag. The definition goes like that: "A place predominantly selling services."
http://wiki.openstreetmap.org/wiki/Key:office

But this is only a subset of offices and is contradicted by the values on the same page (eg ngo, association, newspaper, political_party, foundation, religion, water_utility, ...)

An office is not always (or even rarely) mainly about selling, it can have different purposes like administrating a business or other organization or project. 

An office is typically about people working with paper, computers , other people and the telephone ;-), it is a workspace 

cheers 
Martin