Most level designers are not architects. Most level designers haven't taken any architecture classes. *edit* Let me help you iterate. Ask yourself some questions and then add as you see fit. -How is power transfered? Wires, pipe runs, embedded transformers, etc..? If there are wires and pipes, how are are they ran? -Clearly this environment should have allowances for the human element. How is fresh water/sewage/waste water routed? Are there latices on the floor that cover pipe runs? Does your ducting have logical end points? Are these elements consistant? These are simple questions you can use to enrich your environment.