The integration of cutting-edge large language models (LLMs) has the potential to profoundly transform design methodology and enhance creativity for industrial construction projects. By reviewing pioneering applications of LLMs like GPT-4, this research highlights a tremendous opportunity to use AI to achieve efficiency, accuracy, and inventiveness in the planning for factories, plants, and complex facilities. We present an uplifting methodology centered on empowering human designers through collaborating with LLMs that can rapidly interpret specifications, generate layouts and solutions, while ensuring smooth regulatory compliance. Encouraging results from initial deployments suggest automatizing repetitive and low-value tasks, so engineers can focus their expertise on higher reasoning, quality control and strategic oversight. We find that properly trained LLMs create an effective amplification and augmentation effect, rather than pure automation. The outlook underscores integrating LLMs within existing CAD programs and project management systems to form a cohesive ecosystem that removes friction and barriers to innovation. Expert insights further predict that coupling design teams with AI assistants provides an abundance of valuable construction insights and recommendations to avoid issues, optimize unknown variables, and enhance decision confidence. With conscientious implementation that respects user privacy and maintains human dignity, LLMs represent a water-shed moment to catapult construction design creativity into newer heights, heralding more agile, sustainable and human-centric building development cycles.