When a business plans to expand capacity, the first question a lender asks is whether it is greenfield or brownfield — and the answer changes everything about how the project is financed. The two sit at opposite ends of the risk spectrum, and understanding the difference helps a promoter set realistic expectations on debt-equity, security and approval timelines.
The basic difference
- Greenfield — a brand-new project on a clean site, with no existing operations or track record. Built from scratch.
- Brownfield — an expansion, modernisation or addition at an existing, operating business with a proven history.
That single distinction — track record or not — drives every difference that follows.
How they differ to a lender
| Greenfield | Brownfield | |
|---|---|---|
| Track record | None — lends against projections | Existing operations to underwrite |
| Risk | Higher (execution + market unproven) | Lower (proven business, incremental) |
| Debt-equity | Often 70:30, sometimes stricter | Can be more favourable |
| Security | Project assets only | Existing assets + new |
| Appraisal | Full TEV/DPR | Lighter — track record supports it |
| Approval | Slower, more conditions | Usually faster |
Why brownfield is easier to finance
A brownfield expansion has something a greenfield project never does: history. The lender can see real revenues, real margins and real banking conduct, and can underwrite the incremental investment against a business that already works. The existing operation also provides additional security and, often, cash flows that support debt servicing from day one — so the DSCR is stronger and the trough year less frightening.
That usually translates into a more favourable debt-equity ratio, faster sanction and fewer conditions than a comparable greenfield project.
Why greenfield demands more
A greenfield project carries both execution risk (can it be built on time and budget?) and market risk (will the output sell at assumed prices?). With no operating history to fall back on, lenders insist on a fuller appraisal — TEV study, detailed projections, sensitivity analysis — and more promoter contribution upfront. The reward for getting it right is a brand-new asset; the price is a tougher, longer approval.
Brownfield says “we already do this — here’s the proof, fund the expansion.” Greenfield says “trust the plan.” Lenders price that difference into every term of the deal.
What it means for your raise
If you have a choice in how to frame a project — for instance, expanding at an existing unit versus a new site — the brownfield route is almost always cheaper and faster to fund. Where greenfield is unavoidable, the answer is preparation: a credible DPR, conservative projections and adequate margin, presented the way a credit committee reads it.
Our corporate finance and real estate funding teams structure both — sizing the debt-equity, building projections that survive appraisal, and approaching the right lender for the risk profile.
FAQ
What is the difference between greenfield and brownfield projects?
A greenfield project is built entirely from scratch on a new site with no existing operations, while a brownfield project is an expansion, modernisation or addition at an existing, operating business. Greenfield carries more execution and market risk because there is no track record; brownfield builds on a proven business.
Is brownfield easier to finance than greenfield?
Generally yes. A brownfield expansion has an operating history, existing cash flows and additional security, so lenders can underwrite it more confidently — usually with a more favourable debt-equity ratio, faster approval and fewer conditions than a comparable greenfield project.
What debt-equity ratio applies to greenfield vs brownfield projects?
Greenfield projects are typically funded around 70:30, and sometimes asked for more equity given the higher risk. Brownfield projects, supported by an existing business and cash flows, can often achieve a more favourable ratio.
Why do greenfield projects need a TEV study?
Because there is no operating history, lenders rely on projections — and a Techno-Economic Viability study independently validates the technology, capacity, costs and market assumptions before debt is sanctioned. Brownfield expansions, backed by a proven business, usually need a lighter appraisal.
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