When we think about cities, we often assume the orthogonal grid is the norm: neat, predictable, and rational. However, many urban areas around the world, notably those shaped by hills and uneven terrain, defy this convention. In cities like Lisbon, in Portugal orthogonal grids appear only in flatter zones such as Baixa, while surrounding areas like Alfama adapt organically to topography. These areas create more layered, irregular, and visually dynamic urban forms. Yerevan in Armenia, offers another urban example of this adaptation: the Cascade Complex transforms a steep hill into a terraced public space that connects different city levels while framing panoramic views. For other countries, this response to topography becomes even more critical. Cities like Tegucigalpa in Honduras or Valparaiso in Chile are defined by steep, irregular terrain that requires architects to engage deeply with the land. Designing in these contexts, especially for residential projects, demands technical adaptation and a contextual understanding that allows the slope to become a generative element in the design process.
