Indoor environment is a major area of concern for all, as people spend most of their leisure time at indoor. Indoor Environmental Quality of any building impacts the comfort, health, and productivity of people who reside there. This chapter systematically discusses Indoor Environmental Quality parameters related to building, light, noise, humidity and acoustic quality and its requirement in home. The prevailing Thermal comforts, Sick Building Syndrome, air temperature, etc. are also discussed to effectively link the importance of IEQ in household environment. Some recommendations also explained to maintain the indoor lighting, acoustic, humidity and temperature for the people with special need like elderly, blind etc.