10 Nov 2025
What is the Defect Liability Period (DLP) in Real Estate Management?

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Colliers International

If you're a property owner, manager, or investor, this is essential reading.

When a construction project is completed and handed over, the journey of managing a property does not end there. For property owners, developers, and managers, one of the most important considerations after practical completion is the Defect Liability Period (DLP). This period is an essential part of real estate management, designed to protect investments and provide accountability in the early stages of occupation and use.

Understanding how the DLP works, what it covers, and the responsibilities of each party involved ensures that properties are safeguarded against potential risks and defects that may emerge post-construction.

Defining the Defect Liability Period

The defect liability period is a fixed timeframe, usually ranging from six to twelve months after practical completion, during which contractors remain responsible for repairing or rectifying defects that arise in the building. These defects may include faulty workmanship, defective materials, or issues with compliance with building standards.

During this period, contractors are legally obliged to fix the issues at their own cost, provided the defects fall within the agreed scope. It is not a blanket warranty covering every possible issue, but it is a safeguard built into contracts to ensure owners and managers are not left managing problems immediately after handover.

For those of us involved in real estate management, understanding the DLP is crucial. It helps set clear expectations with contractors, ensures timely reporting of issues, and reduces the financial risk associated with rectification.

The Importance of the DLP in Real Estate Management

In the fast-paced world of property development and management, even small defects can lead to significant long-term challenges if left unaddressed. A leaking pipe, faulty fire system, or non-compliant electrical installation might not be visible on day one but could create safety, compliance, and cost implications down the track.

The DLP offers peace of mind by holding contractors accountable for their work beyond completion. For property managers, it also provides a structured window to identify and report defects while maintaining strong documentation that can be referred to if disputes arise.

For owners and investors, the DLP is a vital risk management tool. It ensures that the asset they have purchased or developed is fit for purpose and that potential liabilities are not transferred prematurely.

Common Challenges During the DLP

While the principle of the DLP is straightforward, managing it in practice can be complex. Some common challenges we see in real estate management include:

  • Miscommunication between contractors, owners, and managers about defect responsibilities
  • Delays in rectification due to disputes over whether a defect is genuine or falls within the contractor's scope
  • Incomplete documentation that weakens the case for timely rectification
  • Overestimation of coverage, where owners mistakenly assume all issues will be fixed, when in fact some may fall outside the agreed terms

These challenges highlight the importance of having experienced professionals manage the process. Clear reporting procedures, timely inspections, and structured communication with contractors are all key to protecting owners during this stage.

Best Practices for Navigating the DLP

At Colliers, we bring decades of experience in real estate management, working in all asset classes including commercial, industrial, retail and residential assets. Based on this, we recommend the following best practices for navigating the defect liability period effectively:

  1. Conduct proactive inspections at handover and throughout the DLP. Early identification of defects ensures they can be raised and addressed promptly.
  2. Maintain detailed records of all defects, including photos, reports, and communications with contractors. This documentation can be vital if disputes arise.
  3. Schedule regular communication with contractors to track progress on rectification and avoid delays.
  4. Clarify the scope of coverage under the DLP at the outset to avoid misunderstandings about what is, and is not, included.
  5. Coordinate with legal and compliance advisors to ensure that defect reporting aligns with statutory obligations and contractual requirements.

By following these steps, property owners and managers can make the most of the protections offered by the DLP while minimising risk.

Supporting Property Owners and Managers

The defect liability period is not simply a contractual formality. It is a practical mechanism that plays a significant role in protecting property owners, managers, and investors from unexpected costs and compliance risks.

For property managers, having expert support during this period can make a significant difference. We have seen firsthand how effective defect management during the DLP prevents disputes, maintains asset value, and strengthens the long-term performance of a property.

Our real estate management team works closely with owners and developers to ensure that defects are identified, reported, and rectified efficiently. This approach not only safeguards investments but also builds confidence in the management of newly completed properties.

Take Action

The defect liability period is a crucial part of real estate management, bridging the gap between completion and long-term occupation. By understanding its role and managing it effectively, property owners and managers can protect their investments and reduce future risks.

Ensure your property is protected beyond completion. Contact Colliers today to learn how we can assist you in navigating the defect liability period and safeguarding your investment.