When a ฿1 trillion infrastructure project lacks a clear revenue model, the question for Phuket property buyers is not whether the bridge will be built—but whether it matters if it never is.
The Thailand Development Research Institute (TDRI) has raised concerns about the economic viability of the country’s ambitious Land Bridge project, which aims to connect deep-sea ports in Chumphon on the Gulf of Thailand with Ranong on the Andaman coast through a six-lane motorway and dual rail system.
For anyone watching Phuket and Andaman coast property, the story matters less for what it promises and more for what it reveals about how infrastructure hype should be handled when making long-term investment decisions.
What the research institute is questioning
Sumet Ongkittikul, vice-president for internal systems and research director for transport and logistics policy at TDRI, told the Bangkok Post that his concerns stem from a project report he reviewed two years ago. He is uncertain whether an updated report has been published since.
Based on the earlier report, he has doubts about the project’s economic feasibility, particularly regarding revenue sources and cost structure. The commonly cited investment figure of ฿1 trillion appears to be a rough estimate with no clear breakdown of how much would be allocated to port construction or land reclamation.
The revenue sources remain unclear. A feasibility study would typically specify where revenues come from and how much they are expected to generate. Sumet said he assumes revenues are unlikely to be substantial, but he has not seen a full report clarifying whether income would be derived from transit fees or cargo handling charges.
“From what I’ve seen in the earlier report, the picture is still unclear as to how the project would be economically viable,” he said.
The revenue problem in plain English
Revenue from transit fees and cargo handling—loading and unloading goods from trains or trucks—does not appear sufficient to justify the investment, according to Sumet.
“If the project’s construction cost is estimated at ฿1 trillion, how much revenue will it generate? If the private sector invests, where would it recover that ฿1 trillion from, and over what period?” he said. “Even with a 100-year concession, the project would need to generate at least ฿10 billion in revenue per year.”
Regarding claims the Land Bridge could shorten travel time to the Andaman Sea and the Indian Ocean by three to four days, Sumet said such time savings may be insignificant for maritime cargo. Shipping by cargo vessels typically takes weeks or months, and additional time is required for handling and logistics, drawing into question whether the time saved by using the Land Bridge would justify the cost.
If the project’s revenue is insufficient to justify the investment, the government may have to provide subsidies. Sumet pointed to the proposed high-speed rail linking three airports, which is expected to generate income from fares. Even with a 50-year concession and rights to develop land for additional revenue, it remains financially unviable. As a result, the state has invested an additional ฿120 billion in infrastructure construction.
What the Land Bridge project actually involves
The project was initiated during the Prayut Chan-o-cha administration and continued under Paetongtarn Shinawatra, claiming to position Thailand as a “global gateway.”
Two deep-sea ports are to be developed: one on the Gulf of Thailand in Chumphon province and another on the Andaman coast in Ranong province. The ports are to be connected by a six-lane motorway and a rail system comprising four tracks: two metre-gauge lines and two standard-gauge lines.
According to the original study, the project would be developed in four phases. Once all phases are completed, it is expected to handle up to 20 million twenty-foot equivalent units of cargo per coast.
Sumet said the most suitable investment model is a public–private partnership, granting private investors the right to finance, construct and operate the project for a period of 50 years. The project is estimated to have a payback period of 24 years, while creating jobs on both coasts and contributing to higher GDP growth, as well as strengthening Thailand’s economic development.
Why this matters for Phuket property
The Land Bridge has been cited by developers, agents and media as a potential catalyst for Andaman coast property demand, particularly in areas near Ranong or along proposed transport corridors. The logic has been that improved connectivity, port development and trade infrastructure would increase economic activity, tourism access and long-term property values.
The detail worth watching is not whether the project happens—but whether the assumptions behind property pricing and investment narratives are grounded in realistic timelines and confirmed plans.
If the project lacks a clear revenue model, as the TDRI analysis suggests, then timelines may shift, phases may be postponed, and the promised economic impact may not materialise in the form or timeframe initially presented.
For buyers or investors considering property based on infrastructure promises, the key question is whether current pricing already reflects future optimism that may not be justified by project fundamentals. Phuket itself is less directly affected than Ranong or Chumphon, but market sentiment and regional development narratives can still influence buyer confidence and pricing expectations across the wider Andaman coast.
The practical takeaway is to separate confirmed infrastructure from speculative infrastructure when making property decisions. Projects with unclear financing, uncertain timelines or unresolved feasibility should be treated as potential upside, not as a foundation for investment logic.
Frequently Asked Questions
What is the Land Bridge project?
The Land Bridge is a proposed ฿1 trillion infrastructure project connecting deep-sea ports in Chumphon and Ranong through a six-lane motorway and dual rail system. The project aims to reduce shipping times between the Gulf of Thailand and the Andaman Sea, positioning Thailand as a regional logistics gateway.
Why is the Thailand Development Research Institute questioning the project?
TDRI vice-president Sumet Ongkittikul has raised concerns about unclear revenue sources, lack of detailed cost breakdowns, and whether the project can generate sufficient income to justify the ฿1 trillion investment. He noted that even with a 100-year concession, the project would need to generate at least ฿10 billion per year.
Could this affect Phuket property demand?
Phuket is not directly on the Land Bridge route, but the project has been used in market narratives as a catalyst for Andaman coast development. If the project faces delays, funding gaps or cancellation due to viability concerns, buyers and investors who priced in future infrastructure gains may need to recalibrate expectations.
What remains unclear about the project?
Key details such as the exact cost breakdown, confirmed revenue sources, financing structure, and updated feasibility reports remain unclear. Sumet noted that he reviewed a report from two years ago and is unaware whether an updated version has been published.
Should property buyers factor the Land Bridge into investment decisions?
Unconfirmed infrastructure should be treated as potential upside, not as a foundation for investment logic. Buyers should focus on current fundamentals such as location, access, demand drivers, rental performance and legal certainty rather than relying on speculative future projects with uncertain timelines and viability.
Sources
- The Phuket News — Vague land bridge project lacks details — link
- Bangkok Post — Referenced within The Phuket News article
