Hi Neveno,
I think it depends on what building you are talking about? I think the
lighthouse used to be the old Herald building at some stage. This did
at one time extend out to Buchanan Street. The buildings still exist
as offices and shops (Regus, USC, Hugo Boss and Timberland I think.)
It would be great if you could investigate and model what was
appropriate. I'm happy either way. It might be nice to include some
history about the building and that might mean modelling more than
just the Lighthouse itself.
Check out the lighthouse website to see if you can find anything.
(
http://www.thelighthouse.co.uk/page.php?page=information&sub=in-floor
)
I'd also have a look at
http://www.glasgowarchitecture.co.uk/glasgow_herald.htm
It might have more information on the history of the building.
Good luck... Martin.