Crew Offices/Buildings @ end of PLatforms

[katoftw]

When I was in Japan last October.  I notice alot of platforms, commuter and Shinkansen had small buildings at the end of the platforms.  Train crew, both driver/conducter and female attendents both would exit from these.  I'm assuming also the have secret passages to other platforms/admin areas.

 

So has anyone modelled these small buildings?  What have you used?  Anyone got pics of them?

 

I was thinking of using something like this:- http://www.1999.co.jp/eng/10190736