The Botica or Apothecary in the Monastery of San Lorenzo el Real de El Escorial (Madrid, Spain): written sources, historic drawings, and new surveys applied to architectural analysis

Abstract

Though there are a great number of studies of the Monastery of El Escorial, the surrounding buildings built in the 16th century have gone almost unnoticed. Among them, the Botica or Apothecary was designed by a disciple of Juan de Herrera and still arouses interest for several reasons. Firstly, because it composes an outstanding closure to the Monastery's main building and the surrounding Lonja, while at the same time it connects other neighbouring buildings; secondly, because the surviving documents about its history, uses, and construction processes had not then been studied; and thirdly, because there was no accurate survey permitting an in-depth study of its materials, construction methods, and techniques. We based our research on the information in archive documents, on the study of an outstanding set of ancient drawings, and on the production of a new survey. As a first step, we drew the first set of accurate plans of the building. From this base we undertook the essential formal, functional, and constructive analysis. We also put forward and confirmed the main hypotheses about the building's chronology and the stages of its construction. Finally, we analysed the conservation works that were carried out facing the two main risks of termite attacks and weathering.