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Writer's pictureKarlen Beitman

How Does Soil Contamination Affect Real Estate?

Updated: 4 days ago


Photograph of construction with text overlay 'how does soil contamination affect real estate'

Soil contamination is a significant environmental concern frequently highlighted in real estate transactions. When buying or selling property, it is one of the most critical yet often overlooked factors. Soil contamination not only poses a threat to health and the environment, but can also significantly impact property values and marketability. It can stem from the activities of current or former property owners, or even natural causes, and may originate either on-site or from external sources.


With increasing awareness of environmental issues, prospective buyers are becoming more cautious and demand thorough inspections. Understanding the implications of soil contamination and the legal responsibilities involved is essential for anyone involved in real estate. This resource sheds light on the various aspects of soil contamination and provides guidance for navigating real estate transactions with contaminated land.


What is Soil Contamination?

Soil is deemed contaminated when it harbors elements or chemicals at concentrations that may pose a risk to human health. Soil contamination occurs when hazardous substances, typically from industrial activities, agricultural practices, improper waste disposal, or underground storage tanks accumulates in the soil at concentrations dangerous to human health or the environment.


Numerous contaminants can significantly contribute to soil contamination, either partially or entirely. The most common soil contaminants include heavy metals, pesticides, petroleum carbons, and other toxic chemicals. These substances can linger in the soil for years, continuously threatening both ecosystems and human health. If not addressed, soil contamination can degrade the land, diminishing its fertility and usability.


How Does Soil Contamination Affect Real Estate?

Soil contamination in real estate poses significant challenges, potentially lowering property values and complicating sales and purchases. Cleanup and remediation are often costly and time-consuming, adding layers of complexity to transactions. For developers, investors, and property owners, a thorough understanding of the nature and extent of soil contamination is a crucial part of the environmental due diligence process. Overlooking issues such as soil contamination can result in significant and unexpected liabilities for new owners.


1) Decreased Property Values

Soil contamination can significantly decrease property values, largely due to the heightened risks and costs associated with remediation. The impact of contamination on property sale prices can continue long after cleanup efforts are completed. Prospective buyers may view contaminated sites as unattractive investments, given the potential for legal and financial burdens tied to environmental liability. Moreover, the presence of contaminants can limit the development potential or restrict the types of permissible land use, further diminishing the property's market appeal.


Property appraisers may also devalue affected sites, taking into account the anticipated expenses of remediation and potential health and safety risks. Consequently, some property owners might have to sell at prices well below the property's market value to compensate for these issues, reflecting the contaminative burden. In essence, soil contamination can stigmatize a property, creating a ripple effect that impacts its profitability and desirability in the real estate market.


2) Additional Costs & Delays for Property Development

Soil contamination can significantly delay and increase the costs of real estate development projects. It may also hinder the start of investments and construction efforts. This delay can result in lost revenue and increased expenses, especially when developers are unable to secure financing for their projects.


3) Legal Risks & Liabilities

Soil contamination poses significant legal risks and liabilities for real estate transactions. Both federal and state laws regulate the treatment of contaminated sites, imposing strict liability on current and previous owners. Thus, new property owners may become liable for cleanup costs or other damages associated with soil contamination they were not responsible for causing. Both current and previous owners of a contaminated site are held accountable for its pollution. The costs of remediation are allocated based on each party's culpability and the extent of contamination during their period of ownership.


How to Assess Potential Soil Contamination

The first step to determine if soil contamination exists is to get a formal Phase 1 Report. A Phase 1 Environmental Site Assessment (ESA) is a comprehensive evaluation aimed at identifying potential environmental contamination on a property. Commonly performed during the due diligence phase of a real estate transaction, this report seeks to uncover any environmental risks that might be associated with the property. If the report indicates potential soil contamination, the next step is to have the soil sampled and tested by a certified laboratory. A qualified local soils engineer or professional should be engaged to perform the sampling.


Real estate developers, investors, and property owners can use LandGate's LandApp tool to find out if a property could be contaminated as a preliminary Phase 1 Report. Within the Property Reports tool, LandApp provides risk index scores that assess a specific property's risk for different types of contamination along with detailed information about the nearest contaminated site and its remediation status.


Screenshot of LandApp's Property Contamination Data


Environmental challenges and soil contamination can arise in various real estate transactions and development projects, from new developments on untouched lands to the sale of residential, small business, and large commercial or industrial properties. While these risks can often be managed with the right strategies, the key lies in identifying potential environmental concerns early—before purchase or development begins. Proper management of contaminated soil is crucial both before and during construction, as well as in the remediation of sites with existing contamination. Real estate developers must implement effective and practical methods to address and eliminate soil contamination issues, thereby preventing future litigation and costly setbacks in their projects. 


Opportunities for Contaminated Properties

Despite the risks of redeveloping contaminated sites, there are also many opportunities and potential advantages. Many of these sites have the potential for cost savings and maximum return on investment. These properties often have valuable infrastructure already in place, such as roads, utilities, and buildings. This can save developers time and money compared to starting from scratch on undeveloped property.


Redeveloping contaminated sites offers a chance to rejuvenate underutilized or abandoned areas. This approach supports sustainable development by repurposing existing infrastructure and curbing urban sprawl. Many communities are eager to revitalize contaminated sites, such as Brownfields, to attract businesses and generate jobs, thus easing the process for developers to secure planning permission.


Properties that may be contaminated can also be leased for renewable energy projects. For example, many landfills across the country are actively being redeveloped into solar farms. Property owners that lease these underutilized properties for renewable energy can generate revenue through lease payments and breathe new life into these lands.


LandGate helps government and private property owners lease their properties for clean energy development through our online marketplace. Listing properties for lease on LandGate's marketplace is completely free, with no obligations to accept any offers. Get started today:



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