From a good architect, however, I expect him to either tell me that right away. Or to bring two alternatives to his too expensive design that at least nearly meet the budget. For example, one that fulfills the room program but with less equipment. And one that does not fulfill the room program but has the equipment. Or any mix in between, but which keeps the budget.
That way I can decide.
By the way, that is what I expect from all professionals who work in their job. Also, for example, from my employees and colleagues who assist me...