Resumen:
The goal of this document is to present a case study to estimate the service life of a heritage building in a quick and practical manner. The methodology is mainly a modification of the ISO 15686 factor method. The main result is a practical method to be used mainly by architects and restorers to produce residual service life estimations of historical buildings taking into consideration not only the 7 typical ISO durability factors, but also one more related to the degree and quality of redevelopments and reparations carried out on the building. It is concluded that it is a practical and versatile method to estimate not only the service life of historical buildings but also any sort of building for which remaining service life is needed and even to estimate architectural projects’ service life.