
Sometimes, development and prosperity are not always beneficial to the surrounding community. This is why an Environmental Impact Assessment (EIA) is required—to evaluate whether a proposed condominium project is suitable for its location before construction begins. Interestingly, condominium developments are among the types of projects that must undergo an EIA before construction can start. In this article, we will explore what an EIA is and why it plays an important role in the decision-making process when purchasing a condominium.
An Environmental Impact Assessment (EIA) is an important process used to evaluate how a proposed project may affect the surrounding environment, both positively and negatively. Its primary objective is to prevent construction projects from causing inappropriate impacts on the surrounding area. The requirement to conduct an EIA before launching large-scale developments is not unique to Thailand; many countries around the world have similar laws or regulations. Although the terminology may differ, the underlying concept remains the same: protecting the environment and preserving the quality of life of nearby communities.
In addition to environmental impacts, the EIA review process in Thailand also considers the quality of life of people living in the affected area. The assessment is divided into four main categories:
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The purpose of an Environmental Impact Assessment (EIA) is to evaluate the environmental impacts of a proposed development. Since condominium projects fall under one of the project categories that may require an EIA, they must complete this assessment before construction can begin.
When purchasing a condominium during the pre-sale stage, you may often see the term "EIA Approved" in advertisements. This means that the project has already completed and received approval for its Environmental Impact Assessment.
Before deciding to purchase a pre-sale condominium, it is important to determine whether the project is required to undergo an EIA. If the project falls within the criteria requiring an EIA but fails to obtain approval, construction cannot legally proceed.
Problems may arise if buyers have already paid a reservation fee or down payment during the pre-sale period. In such cases, obtaining a refund from the developer can often be complicated and time-consuming, and in some situations, the dispute may even require legal proceedings.
What Are the EIA Requirements for Condominium Projects?
What Are the EIA Requirements for Condominium Projects?Not every condominium project is required to undergo an Environmental Impact Assessment (EIA). Under Thailand's Enhancement and Conservation of National Environmental Quality Act B.E. 2535 (1992) and related regulations, only condominium projects that meet certain criteria are required to prepare an EIA report before construction can begin.
For condominium developments, the criteria are as follows:
During the Environmental Impact Assessment (EIA) process, the project owner is required to hire an EIA environmental consulting firm that is licensed by the Office of Natural Resources and Environmental Policy and Planning (ONEP). These licensed private consulting firms are responsible for preparing the EIA report.
In addition to conducting the environmental assessment, the consulting firm also provides guidance to help ensure that the project complies with EIA requirements. This includes advising on the project's construction scope, selecting a suitable location, and developing an appropriate construction plan. These recommendations help avoid potential issues during the assessment process, allowing the project to proceed with construction more smoothly once approval is granted.
Once it has been determined that a proposed condominium project falls under the category requiring an Environmental Impact Assessment (EIA), the project owner should begin preparing the EIA report as early as possible. The process generally includes the following steps:

Neglecting to conduct an Environmental Impact Assessment (EIA) for a project that is legally required to undergo one is considered a serious violation and should never occur. Whether a project proceeds without an EIA or fails to obtain EIA approval before construction, it may face significant negative consequences. Examples include the following:

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