Generally, authors claim that linguistic deficits attested in HD are due to motor symptomatology. However, following Hinzen et al. (2017) and Tovar et al. (2019) we argue that language changes may form an inherent part of the general cognitive decline seen in this disease and be even prior to the onset of motor symptoms (i.e. in presymtomatic population). Our main objective here is expanding these first approaches with a focus on a core principle of grammatical organization, locality, which I hypothesize to be distinctly impaired in this population. Concretely, I aim to study two specific linguistic processes: referential dependencies and constituent movements. In both of these, locality constraints are widely recognized to be involved. If I saw locality principles affected in HD, I could also eventually advance the understanding of their neural basis, since violations of such principles might relate to the neurodegeneration seen in HD.