Green Building Certification in India: Understanding IGBC

Building a Sustainable Future Through Green Building Practices

India's construction sector is growing rapidly, increasing the demand for buildings that use energy and water efficiently while reducing environmental impacts. Green building practices help address these challenges by integrating sustainability into building design, construction, and operation.

Green building certification provides a structured approach to evaluating a building's environmental performance. In India, the Indian Green Building Council (IGBC) offers certification systems that encourage sustainable construction and resource-efficient buildings.

But what exactly is IGBC certification, how does it work, and why is it important for building projects?

Let's explore.

1. What Is Green Building Certification?

Green building certification is a process of assessing a building against established sustainability criteria.

Unlike conventional buildings, green buildings aim to minimise resource consumption and environmental impacts throughout their lifecycle.

Depending on the applicable rating system, assessments may cover:

1. Energy efficiency and conservation.
2. Water efficiency and conservation.
3. Sustainable building materials.
4. Waste management.
5. Indoor environmental quality.
6. Site planning and environmental protection.
7. Innovation in sustainable building practices.

Green building certification helps project owners evaluate their sustainability initiatives against a recognised framework.

2. What Is IGBC?

The Indian Green Building Council (IGBC) was established in 2001 by the Confederation of Indian Industry (CII).

IGBC promotes environmentally responsible building practices and provides green building rating systems for different types of projects.

Its certification frameworks are designed to encourage resource efficiency, reduce environmental impacts, and improve building performance.

IGBC rating systems cover various project categories, including residential developments, commercial buildings, existing buildings, factories, schools, and other building types.

The appropriate rating system depends on the project's nature, scope, and applicable eligibility criteria.

3. Why Is IGBC Certification Important?

Green building certification can provide several benefits to building owners, developers, and occupants.

Improved Energy Efficiency

Energy-efficient lighting, building design, equipment, and cooling systems can help reduce energy consumption.

Water Conservation

Water-efficient fixtures, rainwater harvesting, and wastewater treatment and reuse can support responsible water management.

Better Waste Management

Construction waste management, waste segregation, and recycling practices can help reduce the quantity of waste sent to landfills.

Improved Indoor Environmental Quality

Appropriate ventilation, daylight access, and low-emission materials can contribute to healthier indoor environments.

Environmental Responsibility

Green building practices help project teams identify opportunities to reduce resource consumption and minimise environmental impacts.

The actual benefits depend on the building design, implementation, operation, and performance.

4. Understanding the IGBC Certification Process

Achieving IGBC certification requires planning, documentation, implementation, and assessment.

Although the exact process varies by rating system, the general stages include the following.

Step 1: Select the Appropriate Rating System

Identify the IGBC rating system applicable to the project based on its type, development stage, and eligibility requirements.

Step 2: Register the Project

Register the project under the selected rating system and understand the applicable certification requirements.

Step 3: Review the Rating Criteria

Assess the project against the applicable prerequisites, credits, documentation requirements, and performance criteria.

Step 4: Implement Green Building Measures

Integrate appropriate energy-efficiency, water-conservation, waste-management, and other sustainability measures into the project.

Step 5: Prepare and Submit Documentation

Compile the required drawings, calculations, specifications, reports, photographs, and supporting evidence demonstrating compliance with the applicable criteria.

Step 6: Assessment and Certification

IGBC reviews the submitted documentation and evaluates the project according to the applicable certification process. Additional clarification or supporting documentation may be required.

The final certification outcome depends on the project's compliance with the applicable rating requirements and assessment procedures.

5. What Are the Different IGBC Rating Systems?

IGBC offers rating systems designed for different types of buildings and developments.

Examples include:

1. IGBC Green New Buildings: For eligible new building projects.
2. IGBC Green Existing Buildings: For eligible existing buildings seeking to improve sustainability performance.
3. IGBC Green Homes: For residential projects covered by the rating system.
4. IGBC Green Factory Building: For eligible industrial and factory buildings.
5. IGBC Green Schools: For eligible educational buildings.
6. IGBC Green Interiors: For eligible interior fit-out projects.

Other rating systems address additional building and infrastructure categories.

Project teams should consult the official IGBC website to identify the current rating system, eligibility requirements, and applicable version.

6. What Documentation Is Required for IGBC Certification?

Documentation requirements depend on the selected rating system and the credits pursued by the project.

Commonly required documents may include:

1. Architectural drawings and site plans.
2. Energy performance calculations.
3. Water balance calculations.
4. Details of water-efficient fixtures.
5. Rainwater harvesting and wastewater treatment details.
6. Specifications of building materials.
7. Construction waste management records.
8. Indoor environmental quality documentation.
9. Photographs and supporting implementation records.

Preparing documentation early helps project teams identify information gaps and avoid unnecessary delays during assessment.

7. What Challenges Do Projects Face During Certification?

Although green building certification offers several benefits, project teams may encounter challenges during implementation.

Inadequate Documentation

Missing drawings, calculations, specifications, or supporting evidence can affect the assessment process.

Late Integration of Sustainability Measures

Introducing green building measures after major design decisions have been finalised may require costly modifications.

Coordination Between Project Teams

Architects, consultants, contractors, and facility managers need to coordinate their responsibilities to implement and document the required measures.

Tracking Credit Requirements

Each rating system has specific requirements that must be understood and monitored throughout the project.

Early planning, clear responsibility allocation, and systematic documentation can help address these challenges.

8. IGBC Certification and Environmental Compliance: Understanding the Difference

Green building certification and statutory environmental approvals serve different purposes.

IGBC certification evaluates a project's performance against the requirements of the selected green building rating system.

Environmental approvals and consents, where applicable, are governed by relevant environmental laws and regulatory authorities.

For example, depending on the project and applicable regulations, statutory requirements may include Environmental Clearance (EC), Consent for Establishment (CFE), and Consent for Operation (CFO).

Obtaining IGBC certification does not automatically exempt a project from applicable statutory environmental approvals or compliance obligations.

Project teams should evaluate green building certification and statutory environmental compliance separately while coordinating both during project planning.

9. The Role of Environmental Consultants in Green Building Projects

Environmental consultants can support project teams in understanding applicable environmental requirements and integrating sustainability considerations into project planning.

Depending on the services offered and the project's requirements, consultancy support may include:

1. Environmental regulatory guidance.
2. Review of environmental documentation.
3. Assistance with environmental approval processes.
4. Environmental compliance planning.
5. Coordination of sustainability documentation.
6. Support for green building certification requirements, where included in the consultancy scope.

The objective is to help project teams approach environmental responsibilities systematically and make informed decisions throughout project development.

Conclusion: Building Responsibly for the Future

Green building certification is an important tool for encouraging resource efficiency and environmental responsibility in India's construction sector.

By incorporating sustainability measures early, maintaining appropriate documentation, and coordinating the efforts of project stakeholders, developers can work towards buildings that use resources more efficiently and reduce their environmental impacts.

Understanding the applicable IGBC rating system and its requirements is an essential first step towards this goal.

At A & N Technologies, we believe that sustainable development begins with informed planning, environmental responsibility, and a commitment to better building practices.