The Ernan Boutique Hotel rethinks the conventional approach to boutique hotel design, shifting away from strict historical restoration to make renovation part of the design process. The existing castle structure was preserved and restored as needed, with a hat-like roof added above. These two autonomous objects —castle and roof—define the spaces: where the castle has deteriorated, the roof extends inward, while elsewhere the retreating roof allows the castle to shape the space. This approach does not dissolve spaces into one another; instead, it creates a juxtaposition of positive and negative spaces between two objects, maintaining strong boundaries between past and present.