Overview

Environmental Impact Assessment (EIA) is a series of procedures conducted for large-scale development projects to investigate, predict, and evaluate potential environmental impacts, while incorporating feedback from local residents and relevant authorities to minimize adverse environmental effects.
Environmental impact assessments take various forms, including those required under national laws, local ordinances, administrative guidelines, and voluntary assessments. The procedures, survey methods, prediction requirements, project schedules, and costs vary depending on the reviewing authority. Assessment items also differ according to regional characteristics and the type of project.
Examples:
● Land readjustment projects covering 100 hectares or more within a prefecture → Subject to the Environmental Impact Assessment Act (Type 1 Project)
● High-rise buildings in Tokyo exceeding 100 meters in height and 100,000 m² in total floor area → Subject to the Tokyo Metropolitan Environmental Impact Assessment Ordinance

Backed by more than 40 years of experience, we provide environmental impact assessments for a wide variety of projects throughout Japan. By utilizing our in-house investigation and analytical capabilities, we ensure efficient assessment procedures, provide advice during project planning, and serve as a liaison among project owners, government authorities, local communities, and other stakeholders to support smooth project implementation.

● Field Surveys
Air quality surveys (nitrogen dioxide (NO₂), suspended particulate matter (SPM))
Noise and vibration surveys (environmental noise/vibration, road traffic noise/vibration)
Landscape surveys (selection of representative viewpoints and photographic documentation)

● Predictive Simulations
Air quality dispersion modeling (plume and puff models, terrain simulation models)
Wind environment simulations using wind tunnel testing
Noise and vibration prediction (distance attenuation models and mitigation studies using noise barriers and diffraction analysis)

● Documentation
Preparation of environmental assessment documents, including Planning Documents, Scoping Documents, Draft Environmental Impact Statements, and Final Environmental Impact Statements, as well as coordination with relevant government authorities.

Applications

During the Initial Project Planning Stage

● Determine whether an environmental impact assessment is required.
● Identify potential risks, schedules, and costs associated with the EIA process in advance.

During the Environmental Impact Assessment Process

● Conduct field surveys to assess existing environmental conditions, including air quality, noise, and ecosystems.
● Predict future environmental impacts using simulation models.
● Develop effective mitigation measures to reduce environmental impacts.
● Support consultations with government authorities, expert committees, and review panels.
● Assist with public information meetings, including preparation of presentation materials and explanations for local residents.
● Provide comprehensive support throughout the entire environmental impact assessment process.

During Post-project Monitoring and Additional Environmental Measures

● Conduct post-project environmental monitoring following completed environmental impact assessments.
● Implement additional surveys and mitigation measures to further protect the natural and living environment.

Consultation and Project Flow

With more than 40 years of experience, we provide comprehensive support for every stage of the environmental impact assessment process.

Because project schedules, procedures, and costs vary significantly depending on regional characteristics and project type, we encourage you to contact us by phone or through our inquiry form for an initial consultation.

Step 1

Project Consultation and Planning

Step 2

Evaluation of Environmental Mitigation Measures and Simulation

Assessment items are selected according to the characteristics of the project and the surrounding area. Existing environmental conditions are investigated, impacts are predicted and evaluated, and appropriate environmental mitigation measures are developed.
Predictive analyses are performed using simulation techniques to evaluate the environmental effects of facility operation and other project activities.

Step 3

Consultation with Government Authorities

We coordinate with the relevant authorities regarding the environmental assessment documentation.
We also support public notification, public inspection of documents, and public information meetings in accordance with applicable laws and local ordinances.

Features

Extensive Experience

Leveraging decades of practical experience, we provide comprehensive support throughout the environmental impact assessment process.
We have extensive experience working with local governments across Japan on a wide range of development projects, including land readjustment projects, urban redevelopment projects, large-scale commercial facilities, high-rise buildings, and factory redevelopment projects.

Integrated Project Delivery

We provide a seamless service covering investigation planning, field surveys, predictive simulations, consultations with government authorities, and report preparation. Through effective project management, we help ensure smooth project implementation.

Track Record

● Saitama Prefecture (FY2017): Post-project Environmental Monitoring for a Land Readjustment Project (Local Government)
● Tokyo (FY2019): Preparation of an Environmental Impact Statement for a Type I Urban Redevelopment Project (Private Redevelopment Association)
● Hokkaido (FY2020): Preparation of an Environmental Impact Statement for a Wind Power Generation Project (Private Company)

...and many more.