There's something quite flat about most architectural exhibitions - all those panels of drawings and photographs, interspersed with a few balsawood models. Yet the built environment comes in three dimensions and that's how we experience it. If architecture is all about making space - and it is, of course - the five up-and-coming architectural practices featured in an adventurous exhibition at the RHA's Gallagher Gallery in Ely Place have certainly shown how to do it. And on a very limited budget of just €35,000.

