You may see four different green labels on Indian projects. They are run by different organisations and work in different ways. Here is the short version for a first-home buyer.
Who runs which
- IGBC — Indian Green Building Council, formed by the industry body CII. Common on Bengaluru housing.
- LEED — from the US Green Building Council. Seen more on offices and commercial buildings in India.
- GRIHA — developed by TERI, supported by the Ministry of New and Renewable Energy. Widely used for government and public buildings.
- EDGE — from the IFC, part of the World Bank Group. Focused on measurable savings.
How they differ, in plain words
IGBC, LEED and GRIHA score a building across many areas, such as site, water, energy, materials and indoor comfort. Points add up to a level or star rating.
EDGE is simpler to explain. A project must show projected savings in energy, water and the energy used to make its materials, compared with a typical local building.
Which ones cover homes?
Each system has versions for different building types. For you, the question is simple: is the label for a residential building, and for this project? A label earned by the builder's office tower says nothing about your flat.
Stage matters for all four
Most systems can assess a design and then a finished building. Always ask which stage you are being shown.
Questions to ask the builder about any green claim
- Can you share the rating letter or certificate, with its date?
- Which rating system and version was used, and is it for residential buildings?
- Is this rating for the design or for the finished building?
- Which features earned the most points, and can I see them on site?
- Who will run and maintain systems such as solar panels, rainwater harvesting and the sewage plant after handover, and how is that paid for?
Write the answers down. If a feature was promised for the rating, it is fair to ask whether it also appears in the specifications attached to your agreement for sale. A feature written into the agreement is far easier to rely on than one shown only in a brochure.
What none of them is
None is a safety certificate, a legal approval or a guarantee of lower bills. They sit alongside RERA registration and approved plans, not in place of them.
Why a first-home buyer should care at all
A green label is not a reason to buy a home on its own. But some of what these systems look at affects your daily life and your monthly bills: how much daylight reaches the rooms, how well the building handles heat, whether rainwater is harvested, whether taps and fittings use less water, and how the building treats waste. These are things you can also check with your own eyes on a site visit.
The words you will hear, explained
- Rating system: the rulebook a label uses to decide what counts and how many points each item earns.
- Pre-certification or provisional rating: a rating given on the design, before the building is finished.
- Final certification: a rating given after the finished building is checked.
- Baseline: the typical building the project is compared with, used by EDGE to show savings.
- Level or stars: the band a project reaches, such as Silver, Gold or Platinum, or a number of stars under GRIHA.
Turning a claim into something you can check
Marketing often says a project is “green certified”. Turn that into four plain questions:
- Which organisation gave the rating?
- Which rating system and version, for example a residential one?
- Is it a design-stage rating or a final certification?
- Does it cover my tower, or only part of the project?
If the answers are clear and match the organisation's own website, the claim is solid. If they are vague, treat the label as a hope rather than a fact.
A worked example on water (illustrative only)
Labels often reward low-flow fittings. You can do the arithmetic for your own home. Say a family of four each takes one shower a day of 8 minutes. A shower head using 10 litres a minute uses 320 litres a day. One using 6 litres a minute uses 192 litres. That is 128 litres saved a day, or about 46,700 litres a year (128 × 365).
These are practice numbers to show the method, not a promise about any building. What you actually save depends on your fittings and habits, and on how your water is billed.
Things you can check on a visit, label or not
- Do the main rooms get daylight, and can you open windows on two sides for cross ventilation?
- Is there a rainwater harvesting system you can actually see?
- Is there a sewage treatment plant, and is treated water reused, for example for gardens or flushing?
- Are common-area lights LED, and are there timers or sensors?
- Is there space and provision for separating wet and dry waste?
Where a label sits in your decision
Think of buying a first home as three layers. First, is it legal and safe: RERA registration, clear title, sanctioned plans and, later, an occupancy certificate? Second, does it work for your life: location, commute, layout, budget and loan? Only third, is it built with care for energy, water and comfort? A green label speaks to the third layer. It is a good bonus when the first two are already right, and never a reason to skip them.
Common mistakes with green labels
- Treating a design rating as final. Designs can change during construction. Ask whether final certification is planned.
- Assuming a label means lower maintenance charges. Some green systems need upkeep. Ask what maintenance the systems need and who pays.
- Accepting a logo without a certificate. Ask for the letter and find the project on the organisation's website.
- Comparing levels across systems. Gold in one system is not the same as a star count in another. Compare like with like.
- Letting a label replace legal checks. RERA registration, approved plans and clear title come first, always.
What to actually do
- Note which label, and which version of it.
- Ask for the letter or certificate.
- Find the project on that organisation's own website.
- Check the stage, and that it covers your building.
New to buying a home? Our first home guide covers the legal checks that come before any label.
Reeva Properties is backed by SUYUG Infra: 4 Mn sq ft delivered, 1.5 Mn sq ft under development. You can read more about the parent company at suyug.com.