The adoption of Smart Building (Bangunan Gedung Cerdas/BGC) principles in public infrastructure has become increasingly relevant in promoting energy efficiency, environmental sustainability, and user-centred design. This study examines the extent to which BGC principles have been integrated into the planning of Government Centre Building “A” in Gianyar Regency, in line with the Indonesian Ministry of Public Works Regulation No. 10 of 2023. Using a qualitative case study approach, the analysis draws upon the 2024 Detail Engineering Design (DED) prepared by the project consultant. The research applies a SWOT (Strengths, Weaknesses, Opportunities, Threats) framework to assess internal capabilities and external factors influencing the BGC implementation process. Key strengths identified include strong regulatory support and initial incorporation of automated building systems. However, budget constraints, insufficient digital infrastructure, and limited technical human resources pose significant weaknesses. Opportunities lie in the advancement of Internet of Things (IoT) technologies and growing policy momentum toward energy-efficient public buildings. Conversely, cybersecurity vulnerabilities and resistance to new technologies are recognized as potential threats. The findings offer a practical understanding of the conditions affecting smart building deployment in local government contexts. This analysis provides a valuable reference for stakeholders seeking to align smart infrastructure development with technical readiness, policy frameworks, and financial limitations.