A system for modifying controllable elements of a structure based on an array of conditions, particularly a distance of a user or operator from the structure, deviations from an expected travel path to the structure, activities conducted either along or while deviating from the expected travel path, traffic, a core body temperature of the user or operator, and other factors. The controllable structure elements can include, for example, heating and air conditioning (HVAC), alarm, lights, and appliances.
