Commercial Property Environmental Risks UK Guide

Overview

Environmental risk in a commercial property context means any condition on, under or near the land that could trigger a legal duty, a cost, or a restriction on how the property can be used. The main regime sits in Part 2A of the Environmental Protection Act 1990, which gives local authorities power to identify contaminated land and serve remediation notices on whoever is liable.

That liability often attaches to the current owner or occupier, even where the contamination was caused decades earlier by someone else. Alongside Part 2A, there are separate rules covering asbestos in non-domestic buildings under the Control of Asbestos Regulations 2012, duties around hazardous waste, planning conditions tied to ground conditions, and common law nuisance claims from neighbours.

For a buyer, the risk shows up in three ways: the purchase price, the cost of any works needed, and the future saleability of the site. Environmental due diligence is the process of flushing these issues out before contracts are exchanged, so you know what you are taking on.

Key steps

1. Start with a desktop environmental search. Before spending money on physical surveys, order an environmental data report from a specialist provider. These searches pull together historical mapping, past industrial uses, landfill records, flooding data and radon information. They are relatively inexpensive and often flag whether deeper investigation is justified, which saves time and cost on sites that turn out to be low risk.
2. Commission site-specific surveys where the desktop search raises concerns. If the data report shows former industrial use, nearby landfill, or proximity to petrol stations, a Phase 1 environmental survey is usually the next step. Where that identifies potential contamination, a Phase 2 investigation involving soil and groundwater sampling may follow. These surveys give you evidence to negotiate with, not just reassurance.
3. Check the asbestos position for any building constructed or refurbished before 2000. The duty holder for non-domestic premises must have an asbestos management plan and a register recording the location and condition of any asbestos-containing materials. Ask to see the current asbestos survey and management plan, and check when it was last reviewed. Missing or out of date records are a red flag.
4. Review planning history and environmental permits. Look at past planning consents, enforcement notices, and any environmental permits issued by the Environment Agency for activities like waste handling, discharges or emissions. Conditions attached to old permissions can restrict how you use the site, and unresolved enforcement issues transfer with the property.
5. Negotiate contractual protection based on what the surveys reveal. Depending on findings, options include a price reduction, a retention held back until remediation is done, an indemnity from the seller, or environmental insurance covering unknown historic contamination. The right mechanism depends on the scale of the risk and how much certainty each side needs before completion.

Common questions