###### Abstract
However, [PERSON] et al., highlight an acceptable range of use, which is 0-30% when high-strength cements such as 42.5R or 52.5R are used. In these cases, the decreases in the characteristics' strength of the mortar are not significant and are acceptable for application in, e.g., prefabricated mortar elements [23]. Once its mechanical properties were defined, its thermal properties and the application of this mortar doped with ground olive stone in a facade for a new building were determined [24]. [PERSON] et al., defined the thermal conductivity coefficient (\(\lambda\)) of mortars using ground olive stone as a substitute for fine aggregate in percentages of 0-30% (mechanically viable). Their results show that for the case of 30% replacement of the fine aggregate by ground olive stone, a 43.94% reduction in the thermal conductivity coefficient is achieved with respect to a reference mortar. As a result of these reductions in thermal conductivity, the use of this doped mortar in perforated bricks and its installation on the facades of a new building is proposed. The results of the thermal simulation of the building show reductions of up to \(-0.938\) kWh/m\({}^{2}\) of the combined heating and cooling demands [24]. Once the mechanical and thermal behaviors of this waste in mortar have been defined, it is noteworthy to be able to characterize them on other aspects such as economic, social and environmental, which is the main novelty of this research, in addition to continuing to add knowledge to the use of ground olive stone as a substitute for natural fine aggregate. With these new results, the sustainability of this waste applied to the construction sector can be evaluated. Of course, another advantage of using olive stones as a doping material is that since they are a by-product of the food industry, their use as a building material would help to promote the concept of the circular economy. This study aims to evaluate the economic and social profitability as well as its environmental sustainability derived from the use of this ground olive stone in the construction industry; specifically, in its use as a dopant in mortars for the manufacture of perforated bricks applicable to the construction of a facade in a new building. For its economic anal ysis, the energy savings derived from the decrease in energy demand (heating and air conditioning) through the three traditional energy sources to supply will be compared. These are electricity, natural gas and biomass. In the Social Life Cycle Analysis (S-LCA), the main parameters and positive impacts related to the doping of mortar with olive stones to produce bricks are analyzed. Finally, an Environmental Life Cycle Analysis (E-LCA) is carried out to determine the environmental impacts related to the use of doped bricks in buildings. The aim of this research is to determine whether ground olive stone is economically viable, whether it is socially beneficial for society and the production environment, and to determine its environmental impacts. These methodologies for defining sustainability together with the previous definition of mechanical and thermal properties help to generate knowledge about the use of ground olive stone as a substitute for natural fine aggregate.