A system and method for identifying a change in walking speed of a person is provided. The system comprises a plurality of sensors disposed in various rooms of a structure. The sensors are operable to provide a signal representative of motion and/or the location of the person within the structure. The system may also include a processor-based system that may receive signals representative of the motion and/or location of the person from the sensors. The processor-based system may establish a travel time for a path traveled by the person through the structure based on the signals representative of the motion and/or location of the person and may store the travel time within the processor-based system. The processor-based system may identify at least one path traveled by the person through the structure from among various travel paths traveled by the person through the structure as having a consistent travel time over a period of time. The processor-based system also identifies a change in the person's walking speed by identifying changes in the travel time for the at least one path traveled by the person through the structure. The system may alert the person or a caregiver to inform them of the change in walking speed identified by the system.