Glossary

Defects Liability Period (DLP)

The Defects Liability Period (DLP) is the contractual period following practical completion during which the contractor is obligated to return and rectify any defects that arise from faulty workmanship or materials. At no additional cost to the client. The DLP begins on the handover date and typically runs 12 months for most fit-out contracts in India.

During the DLP, the client should log any defects as they appear and notify the contractor formally. A responsible design-build firm will typically schedule one or two structured defect-resolution visits during the DLP rather than waiting for a list at month 11. At the end of the DLP, a retention sum (typically 5–10% of contract value) held back to incentivise defect resolution is released after the DLP closure inspection is passed.

Learn more

Quality Assurance and Handover Processes in Premium Office Projects

How Defects Liability Period (DLP) fits into an office project

Defects Liability Period (DLP) matters when a workplace moves from a broad design idea to a coordinated brief. The team should define what the term means for this project, where it appears in the drawings or specifications, and who approves it. That prevents a familiar word from hiding a gap in scope, procurement, installation, or handover.

Questions to settle early

  • What outcome should Defects Liability Period (DLP) support for the people using the workplace?
  • Which drawings, schedules, samples, or calculations will confirm the requirement?
  • What needs to be coordinated with architecture, interiors, MEP, technology, or building management?

What to record in the project brief

Record the selected approach, responsible owner, approval point, relevant exclusions, and the evidence required at installation or handover. If the requirement affects cost, lead time, maintenance, safety, comfort, or future flexibility, state that connection plainly. The definition is a starting point. The project brief turns it into a checkable decision.

A practical checklist for Defects Liability Period (DLP)

When Defects Liability Period (DLP) appears in a workplace brief, avoid treating it as a standalone line item. Connect the requirement to the people, spaces, services, and operating routines it is meant to support. A short definition is useful for orientation. A good brief also explains the project context, the expected performance, and the evidence needed before approval.

Before design sign-off

Confirm the existing site condition and any landlord or building-management rules that affect the decision. Mark the requirement on the relevant plans and schedules. Check interfaces with adjacent trades, access for installation, maintenance access, replacement cycles, and the effect on the programme. If alternatives are possible, compare them on whole-life suitability rather than headline purchase price alone.

At procurement and handover

Keep the approved specification, supplier information, samples or calculations, and agreed exclusions together with the project record. At handover, verify that the installed result matches the approved design and that the client receives the information needed to operate and maintain it. This makes Defects Liability Period (DLP) a useful control in delivery, not just a glossary phrase.

For a project-specific discussion, start with the Vektor Spaces services, review the delivery process, and bring the relevant questions to a project enquiry.


Planning an office fit-out?

Get a fixed-price estimate from Vektor Spaces. Design, build, and handover in one contract.

Get a fixed-price estimate →
Last updated: June 2026 · Office Fit-Out Glossary