The Internet of Things (IoT) has completely changed how many different sectors are served. These industries are currently a promising ground for researchers to apply IoT. The purpose of this study is to suggest an intelligent IoT-based office concept. It focuses on three areas in order to produce a productive working environment. We suggest a system for the Internet of Things-enabled smart office. Our system configuration, which uses Google Voice Over Protocol and Android-based applications, makes it easy to manage a smart office environment. This system is possibly reasonable for bigger office spaces thanks to the utilization of lightweight MQTT favourable to tools, high-recurrence RF trans-beneficiaries, and Raspberry 2 Z-wave-based significant distance regulators. PIR, gas, fire, sound, light, temperature, and moistness sensors are remembered for the system for low power utilization, elite execution, and fast chance to-time reaction QoS boundaries. With a committed channel for every sensor signal, safeguarded by AES encryption, and fitting and-play highlights, we ensure trustworthy correspondence. Also included is mail-based anomaly or emergency alarm notice. Finally, we carried out the experiment and put the created system to the test on Android phones and a smart watch called the Moto360 Watch.