How does BIM fit in with the RIBA Architectural stages?

The short answer is ‘with difficulty’!

Being a front loaded process, BIM almost reverses the more traditional RIBA approach where construction drawings are issued at the last labour intensive stage in the process.

With BIM, the drawings are still issued at the end, but because the building and site are accurately modelled during the design process the drawing issue becomes a virtual button press at the end of the process.

This makes change easier, smooths the resource requirement curve and reduces drawing errors made because of early snagging and clash detection identification through the BIM modelling process.