Las “casas a la malicia” en Madrid y su transformación en edificios de entramado de madera “modernos” (1656-1868): construcciones originales vs. estructuras añadidas

The dating of most buildings in the Historic Centre of Madrid is still unknown. The discovery and analysis of many old projects and the verification with the preserved buildings show that some apparently ‘modern’ are built on other pre-existing ones. In the garden of the ‘houses a la malicia’ (1560-1788), and before demolishing the city wall (1868), new bays, stairs and patios were built. Besides, new floors were added on the original double-layered facade walls and load-bearing timber-framed. The study and dating of case studies, determining its sectors, front and back; the dimensioning of the exterior and interior walls; and structure disagreements in the floor plans and cross-section will reveal this process. The ‘old’ construction features are verified, justifying their intact conservation in low-rise buildings; and in others, the formation of the patio, the addition of new floors, and their transformation into collective housing buildings.