Environmental concerns, climate change, and rising animal welfare expectations transform livestock farming. This chapter explores sustainable construction solutions for livestock buildings in Poland, Portugal, and Brazil, focusing on reducing greenhouse gas emissions and energy consumption and improving animal well-being. It reviews traditional and modern construction methods—masonry, steel, and timber—assessing their adaptability, efficiency, and environmental impact. Emphasis is placed on passive design strategies, thermal insulation techniques, and energy-efficient ventilation to enhance productivity and reduce operational costs. The chapter concludes by advocating for region-specific, cost-effective building designs that ensure optimal indoor conditions and long-term sustainability in animal production.