A liability the developer already carries
Most discussions of developer risk start with construction-phase exposures. The exposure that outlasts all of them sits after the building is finished and occupied. Under Section 14(3) of RERA, a promoter is liable to rectify, free of charge, any structural defect or defect in workmanship, quality or provision of services in a project for five years from the date of handing over possession, typically attending to a notified defect within around 30 days.
That is a contingent liability the developer carries whether or not it is insured. A column that develops distress, waterproofing that fails, a slab that cracks: each becomes the promoter's cost to put right, and on a large project the rectification bill can be material. The default position in the Indian market is that this liability sits unfunded on the developer's books, met out of cash flow if and when a defect surfaces.
Inherent Defects Insurance (IDI), sometimes called latent-defects or decennial cover, exists to move that liability off the balance sheet and onto an insurer. It is worth understanding precisely because the liability it answers is already there, statutory and quantified, even where the cover is not yet common.
How Inherent Defects Insurance works
IDI is a first-party building cover. It protects the developer against the financial liability of repairing, restoring or strengthening the insured building where the cost arises from inherent or latent defects in design, materials or workmanship. The subject of the cover is the structure itself, and the policy responds to the cost of putting the structure right.
The defining feature is the technical gate at inception. IDI is led by an independent technical controller or inspection agency that reviews the design and construction. Cover commonly begins from the issue of a Taking Over Certificate on receipt of a Certificate of Approval from that independent controller. The insurer is, in effect, relying on a third-party technical sign-off that the building was designed and built to standard before agreeing to stand behind latent defects in it.
The term is the other distinctive feature. IDI cover commonly runs for around ten years from attachment, though some structures reference a five-year period. The decade-long horizon is what gives the cover its other common name, decennial insurance, and it means the policy is designed to outlast the construction warranty and sit across the long tail when latent defects actually emerge.
What counts as a latent defect
The cover turns on the meaning of latent. Latent defects are those not reasonably detectable at the time of possession. That definition does two things at once: it sets what IDI is for, and it draws the boundary against what IDI is not for.
A defect that is already apparent at handover is not latent. It is a visible, known issue, and it falls outside the cover and into the developer's ordinary contractual and snagging obligations. The IDI policy is aimed at the failure that was hidden at possession and surfaces later, the design flaw, the material weakness or the workmanship error that only manifests under load or over time.
This is also what separates IDI from the developer's contractual defect-liability obligations to contractors and buyers. Those obligations are about the bargain between the parties and the visible quality of the work. IDI is about the structural failure that no reasonable inspection at possession would have caught. Keeping the two distinct matters for both underwriting and claims, because a dispute over whether a defect was detectable at handover is a dispute over whether the policy responds at all.
Why the distinction bites in practice
Consider a residential tower handed over clean, with a waterproofing failure that only appears in the second monsoon. If the failure traces to a latent design or workmanship defect not detectable at possession, it is the kind of loss IDI is built for. If it traces to an issue that was visible and noted at handover, it sits with the developer's defect-liability and snagging duties. The same physical symptom can land on either side of the line depending on what was detectable when possession passed.
Where IDI sits against title insurance and CAR
Developers already buy two other covers that are easy to confuse with IDI, and the differences are about timing and the nature of the risk.
Construction All Risks (CAR) covers the works during construction: physical loss or damage to the project while it is being built. It is a construction-phase cover that falls away once the project is complete and handed over. IDI begins roughly where CAR ends, picking up the long post-completion tail of latent structural defects. They are sequential rather than overlapping, and a developer that has CAR is not thereby covered for a defect that surfaces years after handover.
Title insurance addresses a different risk entirely: defects in the legal title to the land and project, the ownership and encumbrance risks that can cloud a development. It has nothing to do with the physical integrity of the structure. A developer can hold clean title and still face a latent structural defect, and can have a sound structure on contested title; the two covers answer unrelated exposures.
Seen together, the three covers map to three phases and three risks: CAR for physical damage during construction, title insurance for ownership and legal risk, and IDI for latent structural defects in the completed building across the years after handover. Reading them as one programme, rather than assuming any one substitutes for another, is the way a developer closes the post-completion gap that IDI is designed to fill.
What could push adoption
IDI is not yet a standard purchase in the Indian market, but the pressures that could change that are visible, and they come from outside the developer.
Lenders are one source. A financier funding a project carries an interest in the asset's integrity well past completion, and a structural failure that impairs value or triggers buyer claims is a credit concern. A lender that begins to ask for latent-defect cover as a condition of funding would move IDI from optional to expected on the projects it backs.
Buyers are the other. The RERA five-year rectification obligation has made buyers more aware that structural defects are the developer's responsibility, and a developer that can show an insurer standing behind that obligation has a credibility advantage over one relying on its own balance sheet. As buyers grow more discerning, a funded, insurer-backed defect promise becomes a differentiator rather than a cost.
For a developer or its broker, the practical work is in matching the cover to the RERA liability it is meant to fund: the term against the five-year statutory window and the longer latent-defect tail, the latent-defect definition against the contractual obligations it sits beside, and the technical-controller process against the project's construction quality. Those distinctions live in the wordings. Sarvada gives commercial insurance brokers structured, searchable access to insurer policy wordings and the intelligence around them, so an IDI placement can be matched to a developer's actual RERA exposure and read cleanly against its CAR and title programmes. Request Access to ground your real-estate liability advice in the underlying wordings.