ICU design requires specialized infrastructure to care for critically ill patients. An ICU contains a patient care zone with private rooms or beds equipped for monitoring and treatment. It also includes clinical support zones for medical staff, unit support zones for administration and staff areas, and family support zones. Proper ICU design supports the integrated care of high-risk patients through features like isolation rooms, telemedicine capabilities, and family accommodations. Experienced consultants can help design ICUs that optimize outcomes, performance and costs according to evidence-based best practices.