Since this is off the main topic I'll still reply to it. Architects get 6% of the construction budget of a project to do the design. They use this to pay themselves and all of the consultants (structural - me, civil, etc).
They get the job based on how cool of a design they come up with, not on negotiation the price. Every firm gets the same price.
If building owners suddenly decided to band together and set the price at 5% of the construction budget then they would stop getting good products.
If only......
(sigh)
Right, mandatory fee scales were abolished back in the late 80s, when I was still a student, as the EU ruled them to be a restrictive practice. Recommended fee scales were then issued for a while, but the EU spotted this blatant fiddle and stopped it, not least by lodging a huge fine against the Belgians.
Fees are therefore now calculated on a straightforward cost-resource basis, usually on a competitive tender process. To put this in perspective, housing can drop as low as 3 or 4% (madness), hotels sit around the 6 or 7% mark, and high end conservation projects sit around the 8 to 10% mark.
The profit margins are pretty constant across all these sample sectors, the higher % fees being a reflection on the time/complexity.
Traditionally the design team are appointed separately in the UK and Europe, as it makes liability issues more straightforward. "One stop shop" appointments are becoming more common, particularly at the early stages. Don't even start me on design and build contracts.
Now, my practice were one of two architects for the upgrading of a very large hotel where the Open was just hosted. Contract value £28.5m. We provided the specialist heritage advice (heck, tower blocks to conservation, there you go, it's a funny old game) and we were on a direct appointment from the client. The lead architect, services, and structural engineers were appointed directly and separately.
Does that clarify matters?