Geometry is the first origami property observed, but this is followed by symmetry, balance and proportion. Aesthetic, technical and geometric parameters that make the design of these surfaces particularly interesting for architecture, engineering and design. Among the various ways of dealing with surface folding, this text analyzes the properties of the fold in determining surfaces that admit different spatial configurations.
This paper presents some steps in experimentation aimed at describing urban spaces made following the series of earthquakes that affected a vast area of central Italy starting on 24 August 2016. More specifically, these spaces pertain to historical centres of limited size and case studies that can be called "problematic" (due to complex morphological and settlement conditions, because they are difficult to access, or because they have been affected by calamitous events, etc.).
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