---
title: Environmental Due Diligence for Multi-Tenant Commercial Space Purchase
description: Multi-tenant spaces need thorough environmental evaluation aka Due Diligence, as these sites are more complex than single tenant spaces.
---

[Environmental Issues, Mold, Oil Tanks ](https://www.currenenvironmental.com/blog)

# [Environmental Due Diligence for Multi-Tenant Commercial Space Purchase](https://www.currenenvironmental.com/blog/environmental-due-diligence-for-multi-tenant-commercial-space-purchase)

 Written by [David C Sulock](https://www.currenenvironmental.com/blog/author/david-c-sulock) | Nov 3, 2025 5:30:00 PM

The commercial real estate market offers a wide variety of properties that can host multiple tenants, creating multiple streams of income for landlords. Many of these spaces are **flex spaces**, which may include offices, light industrial operations, or warehousing. While this versatility is appealing, it also brings a higher potential for **environmental complications** compared to single-tenant office buildings.

A typical multi-tenant property could include tenants such as:

- A satellite sales office
- A solar installation company
- A gymnastic studio
- A light manufacturing business

Of these tenants, most could pose environmental risks. For example:

- **Sales offices** may store demo products, damaged or expired items, or cleaning compounds.
- **Installation companies** could store energy products or panels containing hazardous materials.
- **Manufacturers** often produce waste products that, in states like New Jersey, may fall under regulations such as **ISRA** (Industrial Site Recovery Act), requiring an environmental audit when the property is sold or transferred.

 

Even if a tenant who caused an issue has moved out, landlords remain **legally responsible** for environmental compliance. For example, one landlord recently paid **$12,000** to complete an ISRA audit, while others have faced costs exceeding **$100,000**.

 

 

 

In another case, a property had **16 inches of environmental reports** prepared for a buyer, but part of the property was still undergoing remediation. The seller had assumed the property was cleared based on prior reports. **Pro tip:** if you see references to the EPA, it’s usually a state agency like **NJDEP**, not the federal EPA—but it still signals a significant environmental concern.

 

These scenarios highlight why **thorough environmental due diligence** is critical for multi-tenant properties. A **Phase I Environmental Site Assessment (ESA)** is always the starting point, though the typical 2–3 week turnaround may be too fast for complex sites. In many cases, a **Phase II ESA** is also warranted, especially for older buildings or properties with tenants who may have generated hazardous waste.

We recently worked on a property where cleanup from a current tenant was ongoing, with remediation expected to last another **18 months**. The buyer’s lender ultimately **declined financing** due to the extended remediation period—underscoring the higher failure rate of transactions in multi-tenant spaces due to environmental factors.

📞888-301-1050

 

 

[View full post](https://www.currenenvironmental.com/blog/environmental-due-diligence-for-multi-tenant-commercial-space-purchase)

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