In this report, a new device called pendulum tuned mass damper (PTMD) is proposed to reduce the vibration of three story houses. In recent years, three stories houses are built increasingly in the urban areas to obtain wide living space in a small space. Such houses are often subjected to numerous vibration problem caused by the traffic vibration Meanwhile, PTMD acts on the principle of lever mechanism and this expands the inertial force of small mass by leverage. Moreover PTMD is cost effective and can be placed between the first and second floor. Therefore PTMD is ideal for such houses. The vibration control effects of PTMD are verified through simulation and experimental studies.