Embodied-carbon counts for new buildings, using Indian material data
TL;DR Cradleline tells a developer how much carbon is locked into a new building's cement, steel, glass and aluminium before it's built. It reads the bill of quantities, uses Indian material data, and ranks swaps such as blended cement by carbon saved per rupee. Developers and their green-building consultants pay per project.
India produced about 491.4 million tonnes of cement in FY26 and is the world's second-largest producer[1]. Cement alone accounts for roughly 8% of global human-made CO2[2]. Most of it goes into buildings, yet Indian developers rarely count the carbon in their materials.
Green ratings in India have focused on running energy and water. IGBC's net-zero page and GRIHA's home page don't show an embodied-carbon requirement[3][4].
The tools that do this well are built for European data. A count that uses European cement and steel figures can be badly off for an Indian site, and a developer can't defend it to a lender or an auditor. That's a problem nobody wants in a due-diligence meeting.
Cradleline works from the documents a developer already has. The quantity surveyor uploads the bill of quantities, and Cradleline maps each line to a material and applies emission factors from Indian sources where they exist, such as manufacturer EPDs. It marks every line where it had to fall back on an international figure.
The output is a whole-building count by element (frame, envelope, finishes), plus a ranked list of changes - blended or LC3 cement in non-structural work, fly-ash blocks, recycled steel content, thinner glazing where the energy model allows. Each change shows carbon saved and the cost change. The report is formatted for the materials sections of EDGE, IGBC and GRIHA submissions.
I reframed the seed. It aimed at zero-carbon certification, but EDGE's zero-carbon level needs 100% renewable energy or offsets on top of deep energy savings[5], which most Indian developers can't reach. Embodied carbon can be measured and cut at design stage today, so Cradleline starts there.
The developer pays, usually through the green-building consultant who already runs the rating file. Large office developers serve tenants with their own targets, and 63% of occupiers in one big consultancy's 2025 survey have ESG goals for their real estate[6]. No public Indian price for an embodied-carbon study was found, so pricing per project, scaled by built-up area, is the obvious starting point.
Tenant pressure is rising, as above[6]. SEBI's BRSR Core circular of July 2023 pushed the top 1,000 listed companies toward assured ESG data, including across their value chain[7], and listed developers sit in that chain. Low-carbon cement is in commercial use now. LC3 cuts emissions by up to about 40% compared with ordinary Portland cement[2], which gives developers a real swap to evaluate.
There's no public figure for embodied-carbon assessment in India. The firmest signals are on the demand side - 350+ organisations have committed to IGBC's net-zero programme[3], and 63% of large occupiers have real-estate ESG goals[6].
Adjacent, there's the cement volume above[1]. Treat those as signals, not a market size.
A Finnish software firm sells building LCA and EPD software used in 170+ countries[8]. Its site doesn't mention India. Indian green-building consultants run energy models and rating files, and some offer carbon studies as custom work. I found no Indian product that does building-level embodied carbon with Indian factors at its core, but my search was limited, so check before you build.
| Difficulty | Moderate (40/100) |
| Starting capital | ₹60 L–1.1 Cr |
| Time to launch | 6–9 months |
The software is not the hard part. Data is, because Indian emission factors are patchy and you'll spend months collecting EPDs and building a library you can defend. Mapping messy bills of quantities to materials is slow too, and every developer formats them differently.
No licence is needed to run a building life cycle assessment in India. Credibility comes from your method and data, so the baseline applies.
Building this outside India? The categories above usually have a local equivalent, so check with your own regulator.
Don't let AI pick structural mixes or sign off emission factors. An engineer and a named data source have to stand behind every number in a rating submission.
Want to work out the AI layer for Cradleline? Talk to Yash →
I'd back a founder with a sustainability or civil-engineering background who will happily do the slow data work. If you're expecting quick software sales then this one will frustrate you. Prove one thing first - that three developers will pay for a study on a live project and act on at least one recommended swap.
Plan for roughly ₹60 L–1.1 Cr, most of it on building the material database and a small analyst team.
No sector licence. You need company registration, GST once over the threshold and DPDP compliance, and you must follow each rating system's own rules.
Yes. The method travels well, but you'd need local material data and to fit whichever green rating systems that market uses.
The free Cradleline validation kit has the line-by-line capital breakdown, the effort scoring, the rating-system checklist, a 14-day validation sprint with pass/fail targets, a 90-day launch plan, 10 interview questions for developers and consultants, and 5 assumptions to test. Download the kit →
Thinking about building Cradleline or something close to it? The make-or-break work is building an Indian material-carbon library that auditors accept, and I'm happy to help you plan how to get there. If you need a hand, you know where to find me. Talk to Yash →
For illustration only. Names are fictional and ideas hypothetical; sourced facts are real but may be out of date. Nothing here is legal, financial or professional advice, and Yash Khatri is not personally liable for any use of it. Read the full disclaimer.