Greenfield or Brownfield? The Two Paths to Infrastructure Investment

Article originally published on Valor Investe, written by Camila Affonso and her team of consultants at Leggio Group, in partnership with columnist Carlos Heitor Campani.

In this article, developed in partnership with Camila Affonso, Partner at Leggio Group, and her team of consultants, we explore two possible approaches within infrastructure investment: greenfield and brownfield assets. Beyond being concepts, these two options are tied to two distinct types of risk — implementation risk and operating risk — both of which are directly connected to the asset's structure, expected return, and investor profile. This article aims to lay out that comparison in a clear, instructive way, showing how the distribution of risk over time changes the investment dynamics for these assets.

Infrastructure projects have very specific characteristics. They are capital-intensive, have long maturation cycles, and depend on operational predictability over many years. Highways, ports, airports, sanitation, and energy assets all require substantial upfront investment before revenue generation even begins. In this context, understanding how capital is deployed and when cash flow starts to turn positive is central to the analysis.

Within this space, the concepts of greenfield and brownfield assets come into play, with the key distinction lying in the asset's maturity and stage of development. Greenfield projects are built "from the ground up," moving through stages of feasibility studies, planning, construction, implementation, and finally entering into operation. Brownfield assets, by contrast, are for the most part already built and operational, with an observable track record of demand, cash flow, and performance.

This difference changes the financial logic of the investment, particularly in how risk, capital, and cash generation are distributed over time, as summarized in the table below.

To better visualize this difference, imagine two investments with similar long-term economic objectives. In both cases, the investor is seeking exposure to an asset capable of generating recurring cash flow over many years. In the first case, the investor decides to develop a new project — starting from scratch. Capital must fund construction, equipment, infrastructure, and operational implementation before the asset begins generating revenue. In the second case, the investor acquires an existing asset. There is a significant upfront outlay for the acquisition and for any necessary maintenance or infrastructure upgrades, but the asset already has observable demand and more predictable cash generation.

Although both investments may share similar financial objectives, cash flow behavior over time differs substantially, as illustrated in the hypothetical example below. While greenfield investments concentrate heavier capital outlays in the early years due to project implementation, brownfield assets show a more stable dynamic, with faster cash generation following the initial investment.

In the greenfield scenario, the negative cash flows observed in the early years represent investment in construction, infrastructure, equipment, and operational development (the investment's ramp-up period). During this phase, the asset does not yet generate revenue, which concentrates risk precisely at the start of the investment cycle.

Year 4 marks the transition between implementation and operation. At this point, the project essentially stops consuming capital and begins entering its operational phase. From the following years onward, the asset starts generating positive cash flow on a recurring basis (typically preceded by an operational ramp-up period).

In the brownfield scenario, the dynamic is different. Despite an initial outlay for the asset's acquisition and any necessary maintenance or infrastructure upgrades, cash generation begins more quickly compared to greenfield assets, since the asset is already in its operational phase. This reduces the need to finance years of construction and implementation and makes cash flow behavior more predictable over time.

This difference helps explain why time carries such significant weight in infrastructure investing. In greenfield projects, construction delays or CAPEX overruns can have a major impact, since revenue depends directly on the asset entering operation. In brownfield projects, risk tends to be more closely tied to sustaining demand, operational efficiency, and management quality.

Looking at real-world examples within the port sector, VDC29, at the Port of Vila do Conde (Pará), is an example of a greenfield asset, as it involves the development of a new terminal dedicated to the handling and storage of solid vegetable bulk cargo, primarily soybeans and corn. STS10, at the Port of Santos (São Paulo), is a brownfield asset, as it involves the expansion and modernization of an existing, already-consolidated port facility used for the handling and storage of containerized cargo.

Another interesting point is that greenfield assets typically allow for greater strategic flexibility. Since the project is designed from the very beginning, there is more freedom to incorporate technology, operational efficiency, and future expansion capacity. Brownfield assets, on the other hand, carry the constraints of their existing structure. Much of the future investment is often tied to modernization, retrofitting, and operational adaptation of the asset.

As a result, investors more focused on predictability, operational stability, and faster cash generation tend to favor brownfield assets. Investors with longer-horizon strategies and a higher tolerance for risk, meanwhile, often seek exposure to greenfield projects, precisely because of the potential to capture higher returns over the project's life cycle and greater operational flexibility.

In short, there is no single path that is inherently better than the other — only the one that best aligns with each investor's risk appetite, time horizon, and strategic objectives. While greenfield projects demand patience and resilience during the construction phase in exchange for greater long-term upside potential, brownfield assets offer the comfort of predictability and immediate returns, even if constrained by structures built in the past. In the dynamic infrastructure market, true success lies not in avoiding risk, but in knowing exactly which type of risk you are prepared to manage.

*Carlos Heitor Campani holds a PhD in Finance and serves as Academic Director of iluminus – Academia de Finanças, Partner at CHC Treinamento e Consultoria, and Researcher at the Cátedra Brasilprev em Previdência and at ENS – Escola de Negócios e Seguros (School of Business and Insurance).

*Camila Affonso is a Partner at Leggio Group, Director of the Infrastructure Department at FIESP, holds a Master's in Corporate Finance from the Université de Bordeaux, a Specialization in Finance from COPPEAD/UFRJ, and degrees in Production Engineering and Mathematics from UFRJ.

Link to the article published on Valor Investe: https://valorinveste.globo.com/blogs/carlos-heitor-campani/coluna/greenfield-ou-brownfield-os-dois-caminhos-para-investir-em-infraestrutura.ghtml