British companies are achieving spatial expansion and cost optimization through foldable steel structures (Ten Fold Engineering) and multi-layer stacking technology (Patalab’s nine-story container tower), while also promoting the technology’s penetration beyond temporary housing into commercial and healthcare settings. However, thermal performance deficiencies (cold in winter, hot in summer) and controversy surrounding welfare dependency remain major societal challenges. Future development focuses on integrating decarbonization technologies and intelligent modular systems to balance economic efficiency and sustainability.