Soil contamination risk assessment of former automobile maintenance factory site for real estate development.

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Soil contamination investigation

last updated：Sep 07, 2026

ジオテック

We objectively assess pre-development risks and support smooth land transactions.

In the real estate development industry, it is essential to identify potential risks associated with land in advance and to formulate safe and reliable development plans. Particularly, land that has previously been used as an automobile maintenance facility raises concerns about the risk of soil contamination from specific hazardous substances such as organic solvents and heavy metals. If these risks are discovered after the transfer of ownership, it could lead to significant financial burdens and legal disputes. Therefore, voluntary soil contamination surveys prior to development are crucial for the sound progression of the business. Our designated investigation agency conducts soil contamination surveys to objectively identify these risks before contracts are signed, supporting safe land transactions. 【Usage Scenarios】 - Before acquiring new development land - Due diligence in M&A - Surveys before the demolition and reconstruction of existing buildings 【Benefits of Implementation】 - Reduction of hidden environmental liability risks - Provision of objective grounds for contract negotiations - Improvement of development plan safety and avoidance of dispute risks

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【Features】 - Highly reliable surveys conducted by a designated investigation agency recognized by the government - Comprehensive support from Phase 1 (historical investigation) to Phase 3 (detailed investigation) and soil disposal surveys - Precise measurements and issuance of measurement certificates at registered analytical laboratories based on the Measurement Act - Compliance with strict technical standards based on the Soil Contamination Countermeasures Act - Depth-specific core sampling using self-propelled and simple boring machines (up to 10m) 【Our Strengths】 Geotech provides "total ground services," including ground surveys, reinforcement design, construction, and building settlement correction work, as well as soil contamination investigation and remediation projects. With extensive experience and reliable technology, we create the future of cities from the ground up. We offer comprehensive engineering services in a one-stop manner to meet the needs for pre-development surveys in real estate development.

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The main purpose is to conduct environmental due diligence (environmental DD) prior to real estate sales contracts related to the redevelopment of sites such as automobile maintenance factories and sheet metal painting factories, as well as in corporate M&A transactions. It is utilized to allow the buyer side of the land to take the lead in quantifying and evaluating hidden defect risks and future asset retirement obligations in advance. Additionally, it can be widely applied in practical administrative consultations and contract risk management during large-scale land redevelopment exceeding 3,000 square meters, the fulfillment of obligations under Articles 3 and 4 of the law related to the submission of notifications for the abolition of specific facilities using designated harmful substances, and the implementation of pre-inspections for off-site transportation of construction-generated soil based on various regulations (28-item leaching and content tests).