The importance of Building Construction on today's fireground is misunderstood, relegated, and at times minimized, yet it has the most profound impact on operational integrity, personnel safety, and firefighter and civilian survival. Understanding inherent building performance characteristics and their relationships and variables in Command Decision-making methodologies is fundamental to firefighting and incident management on today’s evolving and demanding fireground. A suggested model approach to increase proficiencies through a new training process and refined tactical protocols and deployment model to enhance OPS effective, firefighter safety; Rethinking the built-environment for operational excellence and safety.