The client’s role changes again during the construction stage, when the contractor has responsibility for your building site. You will need to think forward to the building in operation, be flexible enough to deal with changes during construction and understand how to manage the handover process when construction is complete.
When work starts on site, you still have an important role to play. Communication is vital - don't be tempted to sit back and let the contractor get on with it.
Change of some sort is sure to happen during the production of the building. You will need to steer your project through this process.
As your project nears completion, you need to spot any snags, and make sure it is ready for use before occupation.