The propagation of blast waves (caused by the detonation of high explosives) in urban environments are influenced by physical phenomena such as reflection, diffraction and confinement. Indeed, the propagation of blast waves in complex urban environments may differ significantly from that in free-field conditions. Therefore, simplified engineering tools commonly used for predicting blast wave parameters in free-field settings may not be suitable for evaluating blast waves in urban environments. To obtain a sufficiently accurate estimation of the characteristics of the blast load at a given point in such an environment, it may be necessary to use more advanced tools based on computational fluid dynamics (CFD). This study leverages CFD analysis of blast wave propagation with the blastFoam code to develop a simplified method that allows for a fast and sufficiently accurate estimate of the blast load acting on the façade of a building in the event of a detonation of a high explosive within an urban environment. Several scenarios consisting of a group of buildings arranged in different configurations will be analysed. blastFoam is an open-source CFD code used for simulating highly compressible multi-fluid flow in detonation events. The code is based on the OpenFOAM library. Due to the large scale of the scenarios analysed, each simulation with blastFoam generates a large amount of data and a large number of files. Therefore, storage resources available at runtime are required in order to conduct the simulations. The project also intends to conduct analysis of reinforced concrete beams subjected to extreme dynamic loading using the software LS-DYNA. The dynamic loading of interest includes both blast waves and impact loading. The simulation results will be compared against experimental results gathered during spring of 2025.