Modular construction has emerged as one of the most dynamic innovations in the building industry, offering a response to growing demands for speed, cost efficiency, and sustainability. This paper examines the global development of modular systems, with a particular focus on container-based solutions, and evaluates their impact on contemporary architecture and construction practices. Drawing on examples from the United States, Japan, Germany, and the United Kingdom, the study demonstrates how prefabricated modules have enabled the rapid delivery of residential, commercial, and public facilities, while simultaneously supporting energy efficiency and ecological goals.

The Polish perspective is highlighted through recent projects such as the Veterinary Medicine and Animal Sciences Faculty in Poznań and a modular hotel on the Hel Peninsula, both of which showcase the adaptability and cost-effectiveness of modular solutions. Different systems—container, panel, hybrid, and three-dimensional modules—are compared in terms of their advantages and limitations. Particular attention is paid to container-based construction, which combines high mobility and quick assembly with challenges such as insufficient thermal insulation and an unclear legal status in building regulations.

The analysis underscores that modular construction is not only a practical alternative to traditional methods but also a forward-looking strategy for sustainable urban development. Its continued progress will depend on technological innovation, mass production, and regulatory adaptation, paving the way for greater integration with renewable energy and smart building technologies.