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All articles All FAQs General information only. It is not advice on your contract.

Design and build

Design and construct indemnity

Cover for the contractor who is responsible for both the design and the build. It answers where a defect traces back to the design rather than the workmanship, which is often the gap between a contract works policy and a professional indemnity policy. It is written on a claims made basis, so the policy has to be live when the claim is made against you, not only when the work was done.

For design and build contracts, and for any job where you had a hand in the design. Send us the contract and we will check where the design risk actually sits. Subject to underwriting.

A structural drawing unrolled and weighted flat on a construction site, with the half built concrete structure and its scaffolding rising directly behind it

Design and build both duties at once

Claims made cover must be live

Gap cover sits between works and PI

Design source yours or appointed

What it covers

You designed it and you built it

On a design and build contract you carry both duties at once. When something goes wrong the employer does not have to work out which duty failed, they simply come to you. This policy is written for that position.

It answers defects that trace back to the design, whether the design came out of your own office or from a designer you appointed, subject to the conditions in your wording. A contract works policy pays for physical damage, and a professional indemnity policy pays for professional error, and a design and build defect can fall between the two and be picked up by neither.

You can carry design liability without ever calling yourself a designer. Input on layout, materials, methods or temporary works can be enough, and so can a change you proposed on site to make the job buildable. Changing the design can bring part of the design risk onto you, depending on what your contract says.

The short version

Who it is forDesign and build
What triggers itA design failure
Policy basisClaims made
Design sourceYours or appointed
Physical damageCheck against CAR

A summary only. Your policy wording and schedule decide what applies.

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In and out

What is in, and what is not

This cover exists to fill a gap between two other policies, so what it excludes is mostly what those two are already there to pay.

Covered

Design error

A fault in the design, whether it came out of your own office or from a designer you appointed, subject to any condition in your wording about that designer’s own cover.

Covered

Putting the defect right

Typically the expenses reasonably and necessarily incurred in rectifying or repairing a fault, deficiency, shortcoming or defect in the contract works, including redesign and replacement. Your wording and limit decide the detail.

Not covered

What another policy answers

Loss that belongs on Contractors All Risk, plant all risk, products liability or public liability. This policy fills the gap between them, it does not replace them.

Not covered

Before the retroactive date

Work done before the retroactive date on your schedule, and any claim or circumstance you already knew about when you took the cover.

Where it fits

Five covers, five different claims

A construction site usually needs more than one policy, and each one answers a different kind of loss. This is the whole set, with this page’s cover marked.

CoverPays forA claim looks like
Contractors All RiskDamage to the works you are building, and the materials for themStorm, fire, theft or collapse during construction
Public liabilityInjury to other people, and damage to property that is not yoursA passerby is injured, a neighbour’s wall cracks
Professional indemnityFinancial loss caused by your advice, design or documentationA design error that costs the employer money
Design and constructYou are reading about this oneA defect in the works that traces back to the designIt was built correctly, but it was designed wrong
COIDAInjury to your own employeesA worker is hurt on site

A claim usually fits one of these and not the others, and a claim is sometimes declined on one policy because the loss actually belonged on another. If you are not sure which policy a situation belongs to, call us straight away. Notify your insurer within the time your policy requires, and we will help you get it to the right place.

This is a claims made policy. It answers claims that are first made against you and reported to the insurer while the policy is live. It does not answer a claim that arrives after the cover has lapsed, even where the work was done while you were insured. That is the single most misread thing about this cover, so if you are thinking of letting it go at the end of a job, speak to us first.

Quick answers

Design and construct indemnity questions

The ones contractors ask us most often.

How is a claim triggered?

The claim has to be made against you and reported to the insurer while the policy is live, and it has to arise out of your duties as both builder and designer. Cover typically reaches defects in the contract works and legal liability for a negligent breach of professional duty.

I do not offer professional services. What is my exposure?
  • Altering a design, or proposing a change to make it buildable
  • Choosing the materials, or specifying a substitute
  • Deciding the construction method
  • Designing temporary works such as scaffolding, formwork or propping
  • Taking on project management or a design coordination role

Any of these can put design liability on you even where the contract does not name you as the designer.

What counts as a loss?

Typically the expenses reasonably and necessarily incurred in rectifying or repairing a fault, deficiency, shortcoming or defect in the contract works, including redesign and replacement. It excludes loss that Contractors All Risk, plant all risk, products liability or public liability would answer. Your own wording and limit decide the detail, so read them rather than rely on this summary.

What is an indemnity limit?

An indemnity limit is the most the insurer will pay. Two things on your schedule decide what it is worth: whether the limit applies to each claim or to everything in a policy year, and whether legal defence costs come out of the limit or sit on top of it.

Can I claim for something that happened before the policy started?

A retroactive date is the point in the past from which your work is covered. Anything you did before it is outside the policy. Check the date on your schedule, and tell us about your earlier projects before you move insurers, because a replacement policy can start with a later retroactive date and quietly leave your past work uncovered.

I think a claim might be coming. What should I do now?

Tell us and tell the insurer as soon as you suspect it, rather than waiting for a letter of demand. On a claims made policy, notifying a circumstance while the cover is live is what protects you when the claim itself arrives later. Investigation, defence and settlement costs are normally covered, subject to your limit and the policy wording.

CivilSure is an insurance broker. Cover is arranged with, and underwritten by, an insurer, which is named on your policy schedule. This page is a plain language summary. What applies to you is set out in the policy wording and the schedule issued to you. Cover, limits and exclusions are subject to underwriting. If anything here is unclear, ask us before you sign.

Design risk you did not price for?

Send us the contract. We will tell you where the design responsibility actually sits, whether your current cover reaches it, and what a design and construct indemnity would add.

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