Government-backed green building programs in Brazil and Chile are driving rapid expansion of building automation system (BAS) and IoT deployments across South America, creating a growing market for smart building solutions while raising questions about cross-border interoperability and cybersecurity standards.
The Latin America smart building market was valued at USD 4.79 billion in 2025 and is projected to reach USD 5.62 billion in 2026, according to Fortune Business Insights. The region accounts for roughly 5.1% of global smart building revenues, according to Grand View Research, but analysts expect policy acceleration to steepen the growth curve.
Policy Catalysts Reshaping the Market
Brazil and Chile have emerged as the region's most active regulatory environments for green building. In Brazil, the National Bank for Economic and Social Development (BNDES) manages a Climate Fund contract valued at BRL 10.4 billion, according to the Brazilian federal government, designated for reimbursable financing of climate mitigation and adaptation projects. Separate BNDES credit lines - the Environmental Line of Credit and the Energy Efficiency Line of Credit - apply to both building renovations and new constructions, according to Baker McKenzie's Global Sustainable Buildings Guide. Brazil's National Energy Plan 2050 mandates new public policy mechanisms in energy efficiency for buildings, covering minimum efficiency indexes for equipment, building envelopes, and operational performance.
The government's PROCEL Edifica program, operated by state-owned Eletrobras, certifies energy performance in buildings; PROCEL Edifica holders have access to specific preferential BNDES credit lines. Certifications are currently voluntary, but there is a plan for PROCEL Edifica to become mandatory for all future construction, according to Baker McKenzie. Recent changes to Brazil's Public Procurement Law include environmental measures as a criterion for bid proposals, further embedding sustainability in infrastructure spending.
In Chile, the National Energy Efficiency Plan (PNEE), published in 2023 under the country's Energy Efficiency Law (Ley 21.305), sets targets of a 4.5% reduction in energy intensity by 2026, 13% by 2030, and 30% by 2050 compared to 2019 levels, according to an APEC Energy Working Group review. The plan's 32 measures include updating energy efficiency standards for buildings and bolstering energy renovation of existing stock. Chile has also set targets of 80% zero-emission electricity by 2030 and full decarbonization by 2050, according to the country's updated National Energy Policy. By early 2025, all relevant Chilean ministries had finalized sectoral mitigation plans under the country's Framework Climate Change Law, according to the Climate Action Tracker.
Interoperability and Cybersecurity Under Scrutiny
The surge in BAS deployments is intensifying pressure on interoperability and security standards. Across the region, projects draw on internationally recognized frameworks including ISO/IEC 27001 for information security management and the ISA/IEC 62443 series for cybersecurity of industrial automation and control systems, which extends to building automation environments. According to Memoori's smart buildings research, the ISA/IEC 62443 series leverages its experience in Industrial Automation and Control Systems to provide reliable security open standards for building automation systems.
Protocol fragmentation remains a persistent barrier. Research published in the International Journal of Innovative Science and Research Technology identifies a "fragmented ecosystem of proprietary protocols and data models" as creating systemic inefficiencies in smart building deployments. Open frameworks such as BACnet and KNX, alongside data ontologies including Brick Schema and Project Haystack, are gaining traction as baseline interoperability requirements. Analysts note, however, that without unified data models, AI-driven energy management systems struggle to deliver consistent results across mixed-vendor environments.
Cybersecurity exposure is a recognized constraint on market expansion. According to Fortune Business Insights, four out of 10 connected buildings globally are assessed as at risk of cyber-attacks, according to a Kaspersky report, a vulnerability that affects procurement decisions in the region. Analysts at iiot-world.com report that operational technology and IoT-targeted campaigns have become a persistent trend in 2025, with attackers increasingly using automated scans to exploit unpatched vulnerabilities.
Outlook for Global Vendors
The combination of state-backed financing, mandatory certification roadmaps, and an urbanizing population positions South America as an attractive market for BAS and smart building vendors seeking growth beyond saturated North American and European markets. Brazil and Mexico rank consistently among the top 10 countries globally for green building, according to the Green Building Certification Institute. For system integrators and technology suppliers, the practical challenge lies in aligning product portfolios with locally applicable standards - including Brazil's ABNT-NBR technical norms and PROCEL requirements - as well as internationally recognized IoT security frameworks that sophisticated procurement officers increasingly reference. Regional pilot programs, particularly those tied to BNDES-backed smart city initiatives such as Smart City Natal, targeting 25,000 housing units with integrated smart energy and waste management, are being watched as potential blueprints for scalable deployment across the broader Latin American market.
