The spaces represented in Edward Hopper’s paintings are taken as a model by an academic project about light behavior in architecture, the goal of which is to develop a quantitative approach contrastable with the perception of natural light in such paintings. With the support of a physical model and a smartphone as measurement and verification instruments, the author tests the idea that it is possible to establish links between sensory registers and the performance of light in a certain precinct, using as a starting point the question posed by Hopper about the feasibility of light.