A hidden site condition can change the timeline and cost of a commercial construction project. Unmapped rock formations, buried utilities or contaminated soil can show up after the excavation begins. When this happens, the first question is often who is responsible for the additional expenses. The answer usually depends on the construction contract, the facts surrounding the condition and the applicable law.
What qualifies as an unexpected site condition?
An unexpected site condition is a physical condition that materially differs from the conditions the parties reasonably anticipated when the contract was formed. Some examples of conditions may include underground obstacles, unstable soil or environmental contamination that never appeared during the bidding process. These issues can slow down the work, increase costs and create disagreement over who should pay for the extra work.
Does the construction contract decide who pays?
Many commercial construction contracts usually include provisions addressing unexpected or differing site conditions. These clauses might describe what types of conditions qualify, who bears the financial risk and what steps a contractor should take after discovering the problem. Contracts often require prompt written notice before starting any extra work. Failing to provide the required notice may affect a party’s ability to recover additional costs or obtain a time extension, depending on the contract and applicable law.
When can unexpected site conditions lead to a dispute?
Disputes often arise when the parties fail to agree if the condition was truly unforeseen or if it could have been discovered before the work began. They might also disagree whether the contractor gave proper notice or whether the additional work was necessary or fell within the scope of the contract. Careful documentation, such as photographs, inspection reports and project records, can help support each party’s position if the disagreement cannot be resolved during the project.
Commercial construction projects rarely go exactly as planned. When unexpected site conditions affect the work, reviewing the contract early and addressing the issue immediately can help reduce delays and lower the risk of a costly construction dispute.
