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  6. Designated Investigation Agency | Independent Soil Survey to Protect Land Asset Value | Geotech

Designated Investigation Agency | Independent Soil Survey to Protect Land Asset Value | Geotech

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Soil contamination survey

last updated:Jun 28, 2026

ジオテック
ジオテック
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Soil measures to protect asset value through voluntary pre-sale terrain quality surveys to prevent unjust discounts and value deterioration due to contractual nonconformity at the time of land sale.

Corporate real estate, such as land and buildings, is an important management asset, and maximizing asset value is essential during its sale. However, soil contamination lurking underground poses a significant threat, as it can lead to substantial contractual non-compliance liabilities if discovered after the transfer, resulting in the loss of sale profits and a drastic drop in asset value. Additionally, land with ambiguous contamination status can lead to excessive risk hedging from the buyer's side during negotiations, resulting in unfair lowball offers or significant discounts. This document proposes a strategic method to completely eliminate the risk of defects in sales through seller-led "voluntary soil investigations," thereby safeguarding asset value. By conducting prior voluntary historical investigations to clarify the risks of specific hazardous substances and performing precise sampling and official analysis, robust evidence can be established to prove the safety of the land. The trusted reports from the designated investigation agency, Geotech, dramatically enhance the seller's negotiating power in transactions, enabling the safe sale of valuable assets at fair market prices.

    Site and ground investigationDismantling and movingOther civil engineering services
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Designated Investigation Agency | Independent Soil Survey to Protect Land Asset Value | Geotech

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  • Related Link - https://www.jiban.co.jp/service/env/index.htm
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basic information

This is a specification for advanced voluntary soil surveys that serve as the basis for real estate asset value assessment and price negotiations. In the historical investigation phase, a comprehensive document review will be conducted, taking into account not only the surface history of the subject site but also the risk of contamination inflow from surrounding properties. The sampling design will involve precise depth settings that reflect the land modification history, covering environmental data from the surface to the supporting layer. The analysis will be conducted based on the official methods prescribed by the Ministry of the Environment, using the highest precision measuring instruments for leaching and content tests of specific hazardous substances such as heavy metals and VOCs, resulting in a high-value asset evaluation report with legal evidentiary capability.

Price information

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Price range

P3

Delivery Time

P4

Applications/Examples of results

It is used as evidence for preventing asset value depreciation and negotiating high-value sales in the sale of company buildings, former company housing sites, and idle land that has become unnecessary assets. It is utilized to prove soil safety before contracts are signed, completely shutting out unjust depreciation negotiations from the buyer's side. Additionally, it is widely adopted as essential data for environmental sampling during the trust beneficiary rights conversion, securitization, and incorporation into REITs, as well as for improving collateral value assessments from financial institutions and as part of financial strategies aimed at ensuring the recovery of asset sale profits.

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Explanation materials for voluntary soil surveys to maximize land asset value and prevent depreciation | Designated survey organization | Geotech

Explanation materials for voluntary soil surveys to maximize land asset value and prevent depreciation | Designated survey organization | Geotech

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Soil contamination survey

Soil contamination survey

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ジオテック

ジオテック

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