This research study focuses to make an appraisal of the Building Envelope Performance of the academic building of MMMUT, Gorakhpur, Uttar Pradesh. established in 1961 (59 Years old). The study areafalls under the “Hot and Dry” climate type as per the Climate classification of National Building Code-2016.The main aim of this research study is to investigate the existing academic building envelope and assess itsperformance based on the climatic requirements of the warm and humid climate. The Hot andDry climate zones generally have a mean monthly temperature < 30°C and relative humidity < 55%.The studyis based on the investigation of present usage of the building, the orientation of the building, window-to-wallratio, window-to-floor area ratio and, ventilation analysis of the building. This research study undertakes acomparison of the present conditions of the building with the basic standards of Energy Conservation BuildingCodes, 2017 to identify the gaps in the building design. The focus is to understand if the indoor conditions ofthe building are good for working in all weathers of the city and identify the gaps which can be improved forbetterindoorambiance. ThisresearchstudystrivestoprovideStudents, Architects, Planners, and Civil Engineering consultants an example to achieve a basic understanding of green approach for Building designing.

Building Envelope,Fenestration,Passive Architecture,Building Performance.