This paper focuses on designing and optimizing production layouts in manufacturing enterprises, using Ehlebracht Slowakei, Ltd. as a case study. Effective spatial planning is shown to be essential for improving efficiency, productivity, and competitiveness. The Michalovce plant initially suffered from capacity limitations that restricted flexibility and hindered modernization. A systematic approach was applied—covering analysis, redesign, optimization, simulation, and evaluation. The relocation to a new hall in Kosice enabled a complete reorganization: warehouse capacity was doubled, and production was upgraded with advanced Zhafir injection moulding machines. Visualization with Twinmotion supported accurate 3D modelling and layout validation. A comparison between the digital model and the final implementation confirmed minimal deviations. The study demonstrates that integrating structured layout methodologies with digital visualization tools can significantly enhance production efficiency, transparency, and scalability, while offering practical guidance for designing flexible, future-ready manufacturing systems.