Global Real Estate Sustainability Benchmark (GRESB)

Rating System

Follow globally recognized standards for your project.

The GRESB  is a nationally recognized third-party endorsement of green building features in a project. Used by property buyers and tenants alike, the certification conveys an efficient and high performance building with lower running costs.


What Is It


GRESB (Global Real Estate Sustainability Benchmark) is a widely recognized and widely adopted rating system for assessing the sustainability performance of real estate portfolios and assets worldwide. Founded in 2009, GRESB provides a standardized framework for evaluating environmental, social, and governance (ESG) practices within the real estate sector. Its objective is to drive sustainable investment practices, improve transparency, and enhance the long-term value and resilience of real estate investments.

GRESB focuses on evaluating and benchmarking the ESG performance of real estate portfolios, including commercial, residential, and industrial properties. The assessment covers various aspects such as energy and water consumption, greenhouse gas emissions, waste management, stakeholder engagement, occupant health and well-being, governance practices, and risk management. GRESB helps investors, asset managers, and property companies to understand and compare the sustainability performance of their real estate investments.

The main objective of GRESB is to encourage and enable investors to make more informed decisions by integrating ESG considerations into their investment strategies. By assessing and benchmarking the sustainability performance of real estate assets, GRESB aims to promote greater transparency, accountability, and continuous improvement in the industry. It supports the transition to a more sustainable built environment by fostering best practices, driving innovation, and rewarding companies that demonstrate leadership in sustainability.

GRESB provides investors and companies with an objective and standardized assessment tool, allowing them to identify areas for improvement, set targets, and measure progress over time. The benchmarking data and insights provided by GRESB enable stakeholders to engage with peers, share best practices, and drive positive change within the real estate industry.

The ultimate goal of GRESB is to create a global real estate market that integrates sustainability considerations, reduces environmental impact, enhances social well-being, and delivers long-term financial performance. By aligning investor and industry interests with sustainable practices, GRESB aims to contribute to a more resilient, low-carbon, and socially responsible built environment.

what is GRESB

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GRESB is a globally recognized rating system that assesses and benchmarks the sustainability performance of real estate portfolios and assets, driving sustainable investment practices and transparency.


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Criteria and Certification Levels

The GRESB (Global Real Estate Sustainability Benchmark) rating system evaluates the sustainability performance of real estate portfolios and assets based on several criteria. These criteria are grouped into two main assessment components: Management & Policy and Implementation & Measurement. Here is an overview of the criteria and the corresponding certification levels:

  1. Management & Policy:

    • Sustainability Governance: The presence and effectiveness of sustainability governance structures and processes.
    • Sustainability Policies: The existence and implementation of sustainability policies and strategies.
    • Stakeholder Engagement: Engagement with stakeholders on sustainability issues.
    • Risk Assessment & Management: Identification and management of sustainability risks and opportunities.
    • Performance Measurement & Targets: Measurement of sustainability performance and target setting.                                                                                                                                              
  2. Implementation & Measurement:

    • Energy Consumption: Energy efficiency measures and performance data.
    • GHG Emissions: Measurement and reduction of greenhouse gas emissions.
    • Water Consumption: Water conservation measures and performance data.
    • Waste Management: Waste reduction, recycling, and waste management practices.
    • Building Certifications: The presence of recognized green building certifications.
    • Social & Community: Social impact, community engagement, and local community development.

The GRESB rating system assigns scores to each criterion based on the performance of the entity being assessed. The total score determines the GRESB Rating and certification level, which include:

  1. GRESB Rating:

    • GRESB 1 Star: Score below 25% of the peer group average.
    • GRESB 2 Stars: Score between 25% and 49% of the peer group average.
    • GRESB 3 Stars: Score between 50% and 74% of the peer group average.
    • GRESB 4 Stars: Score between 75% and 89% of the peer group average.
    • GRESB 5 Stars: Score above 90% of the peer group average.                                                                
  2. Regional Sector Leaders:

    • The top-scoring entities in each GRESB region and sector are recognized as Regional Sector Leaders.                                                                                                                                                      
  3. GRESB Green Star and GRESB 5-Star:

    • GRESB Green Star: Achieved by entities in the top 20% of the benchmark.
    • GRESB 5-Star: Achieved by entities in the top 10% of the benchmark.

The specific criteria and certification levels may be subject to updates and revisions by GRESB. It’s advisable to refer to the official GRESB website or the GRESB Assessment Documentation for the latest and most detailed information on the criteria and certification levels of the GRESB rating system.

GRESB criteria and certification levels

What is Green Buildings?

Energy-efficient structures designed with sustainability in mind, creating a greener and healthier environment." "These eco-conscious buildings minimize environmental impact while maximizing occupant comfort and well-being.

Embark on a journey into the world of sustainable architecture and discover the transformative power of green buildings on our comprehensive overview page.

Different CASBEE Certifications

  1. The GRESB (Global Real Estate Sustainability Benchmark) rating system provides different rating options based on the type of real estate portfolio or asset being assessed. Here are the different GRESB rating systems:

    1. GRESB Real Estate Assessment:

      • This is the main rating system for assessing the sustainability performance of real estate investment portfolios. It covers various property types, including commercial, residential, and industrial.
      • The assessment evaluates the ESG (environmental, social, and governance) performance of the entire portfolio, considering aspects such as energy efficiency, carbon emissions, water management, waste management, and stakeholder engagement.                                                                                                                                                                 
    2. GRESB Real Estate Development Assessment:

      • This rating system focuses specifically on the sustainability performance of real estate development projects.
      • It assesses the ESG aspects of new construction or major renovation projects, including design considerations, resource efficiency, sustainable materials, stakeholder engagement, and innovation.                                                                                                             
    3. GRESB Infrastructure Assessment:

      • The GRESB Infrastructure Assessment evaluates the sustainability performance of infrastructure assets such as energy, transportation, water, and social infrastructure.
      • It assesses various ESG aspects, including climate risk management, resource efficiency, community impact, governance, and resilience.                                                                                  
    4. GRESB Public Disclosure:

      • This rating system evaluates the transparency and disclosure practices of listed real estate companies and funds.
      • It focuses on the availability and quality of public reporting related to ESG performance, including sustainability reports, policies, and data transparency.                                                        

    These different GRESB rating systems allow for a comprehensive assessment of sustainability performance across various types of real estate portfolios, assets, and development projects. Each rating system has specific criteria and indicators tailored to the unique characteristics and requirements of the assessed entities.

Each of the above ratings are detailed systems of credits and prerequisites. The certification process is equally complex. Consult a green building specialist to determine which rating system your project should adopt to reap the maximum benefit out of the certification without paying extra for the same brand. 

different GRESB certifications


Registration and Rating Procedure

The registration and rating procedure of the GRESB (Global Real Estate Sustainability Benchmark) rating system involves several steps. Here is an overview of the process:

  1. Registration:

    • Real estate companies, investment managers, and asset owners interested in participating in the GRESB assessment need to register on the GRESB website.
    • Registration typically opens several months before the assessment period, allowing participants to create an account and gain access to the assessment portal.                                
  2. Data Collection:

    • Participants are required to collect and submit relevant data on their real estate portfolios, assets, or development projects.
    • Data can include energy consumption, water usage, waste management, carbon emissions, building certifications, policies, and other sustainability-related information.
    • GRESB provides a comprehensive questionnaire with specific indicators and metrics for data collection. Participants are responsible for gathering accurate and up-to-date data for each indicator.                                                                                                                                                  
  3. Assessment Submission:

    • Participants enter their data and responses into the GRESB assessment portal within the designated submission period.
    • The portal allows participants to navigate through the questionnaire, provide data inputs, and upload supporting documents.
    • Detailed documentation, such as sustainability policies, performance reports, and building certifications, may be required as evidence of performance.                                                            
  4. Validation and Scoring:

    • Once the assessment submission period ends, GRESB validates the data and performs quality checks to ensure accuracy and consistency.
    • GRESB assesses the performance based on the submitted data, scoring each criterion and indicator according to the established methodology.
    • Scoring is typically based on a combination of absolute performance and relative performance compared to other participants in the same region or sector.                                     
  5. Benchmarking and Rating:

    • GRESB benchmarks the assessed entities against peers within their region and sector.
    • The benchmarking process determines the GRESB Rating, which indicates the entity’s sustainability performance relative to its peers.
    • Entities are assigned a GRESB Rating ranging from 1 to 5 Stars based on their total score. Additionally, top-performing entities may be recognized as Regional Sector Leaders or achieve the GRESB Green Star or GRESB 5-Star designation.                                                             
  6. Reporting and Feedback:

    • GRESB provides participants with a comprehensive report that includes their performance results, benchmarking analysis, and comparison to peers.
    • Participants can access their individual GRESB Assessment Report through the GRESB portal.
    • GRESB offers feedback and guidance to help participants understand their results, identify areas for improvement, and develop sustainability strategies.

It is important to note that the registration and rating procedures may be subject to updates and revisions by GRESB. Participants should refer to the official GRESB website and the GRESB Assessment Documentation for the most up-to-date and detailed information on the registration and rating process.

GRESB registration and rating procedure

The World of Green Building Certifications:

Professional Credentials

GRESB (Global Real Estate Sustainability Benchmark) offers professional credentials to individuals who demonstrate a strong understanding of sustainable real estate practices and proficiency in using the GRESB rating system. These credentials validate the knowledge and expertise of professionals in the field of sustainable investing and enable them to contribute effectively to the sustainability goals of the real estate industry.

Here are the key professional credentials associated with GRESB:

  1. GRESB Partner: GRESB Partners are organizations that have established a strategic collaboration with GRESB. They typically include consultants, advisors, and service providers who offer expertise in sustainability and help real estate companies navigate the GRESB assessment process.

  2. GRESB Premier Partner: GRESB Premier Partners are a select group of organizations that have achieved a high level of collaboration and engagement with GRESB. They demonstrate extensive expertise in sustainable investing and offer specialized services to support companies in maximizing their sustainability performance.

  3. GRESB Member: GRESB Members gain access to a network of global investors, asset managers, and property companies committed to advancing sustainability in the real estate sector. They can engage with industry leaders, attend GRESB events, and access exclusive research and insights on sustainable investing.

  4. GRESB Data Partner: GRESB Data Partners are organizations that provide data services to support the GRESB assessment process. They facilitate data collection and validation, ensuring the accuracy and reliability of sustainability performance data submitted by participants.

  5. GRESB Certified Professional (GCP): GRESB Certified Professionals are individuals who have completed the GRESB training program and passed the associated examination. They possess a comprehensive understanding of sustainability principles, the GRESB rating system, and industry best practices. GCPs are equipped to guide real estate entities in optimizing their sustainability performance and maximizing their GRESB ratings.

  6. GRESB Assessors: GRESB Assessors are professionals authorized by GRESB to conduct assessments on behalf of real estate companies and asset owners. They undergo rigorous training and demonstrate expertise in sustainability, data collection, and GRESB assessment methodologies. GRESB Assessors play a crucial role in supporting entities throughout the assessment process, ensuring accurate and complete submissions.

These professional credentials reflect GRESB’s commitment to promoting excellence and collaboration within the sustainable real estate industry. They provide recognition to organizations and individuals who actively contribute to the advancement of sustainable practices and the integration of environmental, social, and governance factors into real estate investments.

GRESB Professional Credentials

Key Features

  1. Comprehensive Sustainability Framework:
      • The Green Star rating system provides a comprehensive framework that covers various aspects of sustainability, including energy efficiency, water conservation, materials selection, indoor environmental quality, and innovation.
      • It addresses the entire life cycle of a building, from design and construction to operation and maintenance.                                                                                                                                
    1. Performance-Based Approach:

      • The rating system is performance-based, focusing on the actual outcomes and performance of a building rather than prescriptive measures.
      • It encourages continuous improvement and allows flexibility in design and implementation to achieve sustainability goals.                                                                            
    2. Credit-Based System:

      • The Green Star rating system uses a credit-based system where projects earn points for meeting specific sustainability criteria.
      • The criteria are organized into categories, and the total points determine the certification level achieved.                                                                                                                                      
    3. Adaptability and Flexibility:

      • The rating system is adaptable to different building types and sizes, allowing a wide range of projects to pursue certification.
      • It can be applied to new construction, major renovations, fit-outs, and even entire communities or precincts.                                                                                                                     
    4. Independent Verification and Certification:

      • The Green Star rating system requires independent verification and certification to ensure the credibility and integrity of the process.
      • Qualified assessors review project documentation, conduct site visits, and assess compliance with the criteria before certifying a project.                                                              
    5. Market Recognition and Promotion:

      • Green Star-certified buildings gain recognition and market differentiation, signaling their commitment to sustainability.
      • The certification helps create awareness among building owners, tenants, investors, and the general public about the benefits of sustainable buildings.                                                  
    6. Continuous Improvement and Updates:

      • The Green Star rating system undergoes regular updates and revisions to align with advancements in sustainable practices, industry standards, and feedback from stakeholders.
      • This ensures that the rating system remains relevant and responsive to evolving sustainability challenges.                                                                                                                     
GRESB key features
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Pros and Cons of Implementation

The GRESB (Global Real Estate Sustainability Benchmark) rating system has become widely recognized and adopted in the real estate industry as a means to assess and improve sustainability performance. While it offers several benefits, it also presents some challenges. Let’s explore the pros and cons of implementing the GRESB rating system:


  1. Industry Standard: GRESB has established itself as a global industry standard for assessing and benchmarking the sustainability performance of real estate portfolios. Implementing the GRESB rating system provides a standardized framework to evaluate and compare sustainability practices across different entities.

  2. Enhanced Sustainability Performance: GRESB encourages participants to improve their sustainability performance by setting performance targets and providing benchmarks for comparison. The rating system promotes the adoption of best practices, leading to enhanced energy efficiency, reduced carbon emissions, and better resource management.

  3. Investor Confidence and Transparency: GRESB ratings provide valuable information to investors, allowing them to assess the sustainability performance of real estate entities and make informed investment decisions. Implementing GRESB demonstrates a commitment to transparency, which can attract socially responsible investors and enhance stakeholder trust.

  4. Access to Peer Benchmarking: The GRESB rating system enables participants to compare their sustainability performance with peers in the same region and sector. This benchmarking analysis helps identify areas for improvement, understand industry trends, and learn from leading performers, driving continuous sustainability enhancements.

  5. Market Differentiation: Achieving a high GRESB rating or recognition as a GRESB Green Star can provide a competitive advantage. It demonstrates leadership in sustainability and sets entities apart in the market, potentially attracting tenants, investors, and partners who value sustainable practices.


  1. Data Collection Challenges: Collecting and reporting accurate data can be time-consuming and resource-intensive. Entities may face challenges in gathering comprehensive data on energy consumption, water usage, waste management, and other sustainability metrics across their portfolios. It requires robust data management systems and efficient processes.

  2. Complexity and Learning Curve: Understanding the GRESB rating system and its assessment methodology can be complex, especially for organizations new to sustainable investing. It requires dedicated resources and expertise to navigate the assessment process, respond to the questionnaire, and interpret the results accurately.

  3. Costs and Resource Commitment: Implementing the GRESB rating system involves costs, including registration fees, data collection efforts, and potential consulting or advisory services. Additionally, dedicating internal resources to manage the assessment process and improve sustainability practices requires a long-term commitment.

  4. Competitive Pressures and Scoring: The competitive nature of the GRESB rating system can create pressure to achieve higher scores. Some entities may focus on short-term improvements rather than long-term sustainability strategies, potentially compromising the overall effectiveness and impact of sustainability initiatives.

  5. Limited Scope and Focus: The GRESB rating system primarily emphasizes environmental and governance aspects, with less emphasis on social sustainability factors. This limited focus may not fully capture the broader social impacts of real estate entities and may require additional frameworks or assessments to address social considerations.

Understanding these pros and cons can help organizations make informed decisions about implementing the GRESB rating system. By carefully considering the benefits and challenges, entities can leverage the system to drive meaningful sustainability improvements while addressing potential limitations and ensuring a balanced approach to sustainability.

GRESB pros and cons
Attadeep master
Attadeep master
April 21, 2023.
Execellant approach right from baseline to expert level. It is to beneficial both for a novice as well as professionals.
Shekhar Gupta
Shekhar Gupta
April 21, 2023.
Mr. Anupam has vast knowledge on the subject and has set stringent parameters for analysis of the building / project. The data produced will be used to obtain the Green certifications from various authorities. He has induced a sense of LIFE and our responsibility towards the environment through the building department.
Sanjay Kumar
Sanjay Kumar
April 21, 2023.
Nice company with deep and vast experiences in the field green building design and consultation
Kapil Gupta
Kapil Gupta
April 21, 2023.
Fantastic lecture series, well curated presentation materials, in depth understanding of Green building ratings mechanism and friendly behaviour. It was three days workshop and this was the best time for me to understand green buidling rating mechanism and interaction with one of the highly skilled Green Building consultant as well as a great human being. Thanks for it.
aishwarya richa
aishwarya richa
April 21, 2023.
Knowledge about each topic is quite appreciable. Professional, technical soundness about green bldg with architect view is quite helpful for understanding basics. His workshop is worth attending.
Biplab Nath
Biplab Nath
April 21, 2023.
I have undergone training for GHAR rating system . Mr Jain is immensely knowledgeable and helped me in acquiring the same upto my satisfaction within a short period of time.
narendra pathak
narendra pathak
April 21, 2023.
Excellent demonstration regarding green building norms and methods of rating based on GHAR green building criteria .
Joydeep Sengupta
Joydeep Sengupta
April 21, 2023.
Enjoyed thoroughly each session of the training program attended at CPWD Training Academy. It has been great exchanges of ideas. Learnt a lot from Mr Anupam Jain on the existing Green rating systems, the practices in the real world and last but not the least, the newly developed rating system of CPWD, that is GHAR.
Narendra Sharma
Narendra Sharma
April 21, 2023.
Very useful for us. We learnt a lot.


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