International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 03 Issue: 02 | Feb-2016 www.irjet.net p-ISSN: 2395-0072 © 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 843 Methodology for Developing Criteria weights for Green Building Rating Tool For Gujarat State Abhishek Rana 1 , Dr. Rajiv Bhatt 2 1 Student, Construction Engineering and management, Birla Vishwakarma Mahavidhyalaya, Vallabh Vidhyanagar 2 Associate professor, Dept. of Civil Engineering, A.D. Patel Institute of technology, New Vallabh Vidhyanagar ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - Green buildings play a vital role in the conservation of the environment. However, it has been found that there are many buildings which possess a minimum impact on the environment, yet fail to get certified under the various criteria set by the green building rating tool. Hence there is a need for modified Green Building Rating tool. This research paper presents a methodology on how the weights of the criteria can be determined using AHP technique. These weights shall further be utilized for the development of points for green building rating tool. Key Words: Green building, GRIHA, LEED, green building rating tools, AHP. 1.INTRODUCTION A green building is an environmentally sustainable building, designed, constructed and operated to minimize the total environmental impacts.To measure the impact of the building on the environment, rating tools are available. The evaluators evaluate the building with the help of these rating tools and rate the building accordingly. In India, most commonly used rating tools are GRIHA and LEED India. Here we shall discuss briefly about the two main rating tools used in India. They are i. GRIHA ii. LEED India iii. SB Tool i. GRIHA Most of the internationally devised rating systems have been tailored to suit the building industry of the country where they were developed. TERI, being deeply committed to every aspect of sustainable development, took upon itself the responsibility of acting as a driving force to popularize green buildings by developing a tool for measuring and rating a buildingǯs environmental performance in the context of )ndiaǯs varied climate and building practices. This tool, by its qualitative and quantitative assessment criteria, would be able to Ǯrateǯ a building on the degree of its Ǯgreennessǯ. The rating shall evaluate the environmental performance of a building holistically over its entire life cycle, thereby providing a definitive standard for what constitutes a Ǯgreen buildingǯ. The rating system, based on accepted energy and environmental principles, seeks to strike a balance between the established practices and emerging concepts, both national and international. The guidelines/criteria appraisal may be revised every three years to take into account the latest scientific developments during this period. On a broader scale, this system, along with the activities and processes that lead up to it, will benefit the community at large with the improvement in the environment by reducing GHG (greenhouse gas) emissions, improving energy security, and reducing the stress on natural resources. The rating applies to new building stock – commercial, institutional, and residential – of varied functions. Endorsed by the Ministry of New and Renewable Energy, Government of India as of November 1 2007, GRIHA is a five star rating system for green buildings which emphasizes on passive solar techniques for optimizing indoor visual and thermal comfort. In order to address energy efficiency, GRIHA encourages optimization of building design to reduce conventional energy demand and further optimize energy performance of the building within specified comfort limits. A building is assessed on its predicted performance over its entire life cycle from inception through operation. GRIHA was developed as an indigenous building rating system, particularly to address and assess non-air conditioned or partially air conditioned buildings. GRIHA has been developed to rate commercial, institutional and residential buildings in India emphasizing national environmental concerns, regional climatic conditions, and indigenous solutions. GRIHA stresses passive solar techniques for optimizing visual and thermal comfort indoors, and encourages the use of refrigeration-based and energy-demanding air conditioning systems only in cases of extreme thermal discomfort. The GRIHA rating tool consists of 34 various criteria divided under 7 different categories, such as sustainable site planning, health and well being during construction, material management and so on. GRIHA integrates all relevant Indian codes and standards for buildings and acts as a tool to facilitate implementation of the same. ii. LEED India