Can you save money?

Yes. 

Not only will architects provide better value for money, in many instances they will save their clients at least the equivalent of their fees. Professional attention to detail will save money both immediately, through the most efficient use of space and the careful selection of materials and finishes, and in the long term through environmental sensitivity, energy efficiency, low running and maintenance costs. 

(Extracted from the guidance leaflet " Why use an architect? " published by the Royal Institute of British Architects.)