Known locally as ‘Silk Exchange’, Lonja de la Seda was built in the 15th century during Valencia’s economic growth. Whilst it was used for trading in silk, it was also a centre of commerce. The building denotes a Gothic civic architectural style, which displays the power and wealth of Valencia during the 15th and 16th centuries as it used to be one of the greatest Meditteranean mercantile cities. This is particularly emphasised in the Trading Hall, where the enormous open space is dominated by finely carved spiral pillars that are supposed to resemble palm trees alongside those integrated into the walls that display extravagent skills of craftmanship. The vaulted ceilings are used not only for spreading loads, but also to add to the triumphant appearance. 

The structure is composed of stone masonry with irregular sized stones, though the variation in size is not as much as that seen in the Valencia Cathedral. Although stone masonry is weak in tension, there are no flying buttresses to help dissipate the load and add additional strength. 

Signs of stone deterioration, such as cracks and holes, are observed on the exterior and interior walls. Whilst the exterior erosion of stone resemble that of the Valencia Cathedral, I would say there are less obvious signs of deterioration in comparison. To preserve it, a coating of paint can be added to protect it from corrosion.