  Every day we face numerous lifestyle decisions, some dictated by habits and
some more conscious, which may or may not promote sustainable living. Aided by
digital technology, sustainable behaviors can diffuse within social groups and
inclusive communities. This paper outlines a longitudinal experimental study of
social influence in behavioral changes toward sustainability, in the context of
smart residential homes. Participants are residing in the housing on campus
referred to as KTH Live-In Lab, whose behaviors are observed w.r.t. key
lifestyle choices, such as food, resources, mobility, consumption, and
environmental citizenship. The focus is on the preparatory phase of the case
study and the challenges and limitations encountered during its setup. In
particular, this work proposes a definition of sustainability indicators for
environmentally significant behaviors, and hypothesizes that, through
digitalization of a household into a social network of interacting tenants,
sustainable living can be promoted. Preliminary results confirm the feasibility
of the proposed experimental methodology.
