In this paper, we propose a multiagent system for simulating the control of an intelligent home able to adapt its behavior to the user situation. Central to the adaptation process is the concept of influence sphere that is defined in function of the type of service it provides to house inhabitants (i.e. comfort, security, entertainment, etc.). Each influence sphere is controlled by a Supervisor Agent (SA) that is responsible for taking decisions relative to that scope. Decisions about actions involve device behaviors that, in our system, are controlled by Operator Agents (OAs). Each OA is responsible for deciding the utility of an action in the current user context. Then, according to this organization, the adaptation process is performed at two levels: globally for the relevant influence sphere and locally at the device level.