Assessing the Physical Damage to Lebanon’s Building-Level Environment from the 2026 Conflict

The United Nations Development Programme (UNDP), in collaboration with the National Council for Scientific Research-Lebanon (CNRS-L), produced a series of rapid building-level damage assessments to evaluate the impact of the 2026 conflict on Lebanon’s built environment. Using a Geospatial Artificial Intelligence (GeoAI)-enabled remote sensing methodology supported by high resolution satellite imagery, the assessments provide preliminary estimates of structural damage, debris generation, and associated reconstruction costs. To ensure methodological consistency and scientific rigor, the Beirut and Mount Lebanon assessment underwent extensive validation through records from the United Nations Department of Safety and Security (UNDSS), the Lebanese Armed Forces (LAF), and comprehensive field verification conducted by CNRS-L. Meanwhile, the South Lebanon assessment applied the same GeoAI-based methodology, damage classification framework, and debris estimation approach, complemented by office-based visual validation, ensuring consistency and comparability across the different regions assessed. These reports serve as the first releases in a broader national damage assessment series prepared by UNDP and CNRS-L to support recovery planning and humanitarian programming.

For the full report click HERE.