Banrach Consulting Engineers · Damp & Building Defects · Ireland

The Defective Concrete Blocks grant scheme: the engineer's report you need to apply

By Banrach Consulting Engineers

The Defective Concrete Blocks (DCB) grant scheme is a government scheme that funds the remediation of homes damaged by defective concrete blocks. It is administered through local authorities and depends on an IS 465 assessment carried out by a competent engineer. That assessment establishes that defective blocks are the cause, categorises the damage and sets out the remediation option, which is what the grant is based on. The steps run from obtaining the engineer's IS 465 report, through the application to the relevant authority, to approval and remediation. Eligibility, grant limits and the counties covered are defined by the scheme itself and should be checked against the official information.

For homeowners whose houses are affected by defective concrete blocks, the state grant scheme is the route to funding remediation. But the scheme does not simply pay out on a homeowner's say-so: it is built around an engineer's assessment, and understanding that is the key to navigating it. The report produced under IS 465 is not a formality. It is the foundation on which the whole application rests, determining eligibility, the category of damage and the remediation the scheme will support.

This guide explains how the Defective Concrete Blocks grant scheme works at a high level, why it depends on an engineer's report, and the steps from assessment to remediation. For the exact eligibility criteria, grant limits and counties covered, always use the official scheme information as your reference, as these are set by government and can change.

What the scheme is for

The Defective Concrete Blocks grant scheme exists to help homeowners whose properties have been damaged by concrete blocks containing excessive amounts of deleterious materials, such as pyrite or mica. Repairing or rebuilding a home affected in this way is enormously costly, and the scheme is the state's mechanism for funding eligible remediation. It is administered through the local authorities in the affected areas and operates within rules, eligibility criteria and financial limits set by government.

Because those rules, limits and the list of counties covered are set centrally and are subject to change, this guide deliberately does not quote figures or eligibility specifics. The official scheme information is the authoritative source for these and should be checked directly.

Why the engineer's report is central

The single most important thing to understand about the scheme is that it is built on the IS 465 assessment. The engineer's report does several jobs without which the application cannot proceed:

• 1
  It establishes the cause It confirms, through survey and laboratory testing, that the damage is due to defective concrete blocks rather than another defect.
• 2
  It categorises the damage It assigns the damage rating under IS 465 that reflects the severity of the damage.
• 3
  It determines the remediation option It sets out the appropriate scope of works for that category, from repair to more extensive rebuilding.
• 4
  It provides the evidence base It documents the findings on which the authority assesses the application.

Without a competent IS 465 assessment, there is nothing for the scheme to act on. This is why the choice of a genuinely competent engineer matters so much: the report shapes the entire outcome, including the scope of works that the grant supports.

Always check current eligibility, limits and covered areas against the official scheme information on gov.ie.

The steps from assessment to remediation

• 1
  Suspicion and initial advice The homeowner notices deterioration and seeks advice on whether defective blocks may be the cause.
• 2
  IS 465 assessment A competent engineer carries out the assessment, including sampling and testing, and produces the report with the damage category and remediation option.
• 3
  Application to the local authority The homeowner applies to the relevant authority under the scheme, with the engineer's report as the core evidence.
• 4
  Assessment and approval The authority assesses the application against the scheme rules and, where the applicant is eligible, approves a grant based on the categorised remediation.
• 5
  Remediation The approved works are carried out, with the process and any further engineering input following the scheme's requirements.

Get the assessment right first

Everything in the scheme flows from the IS 465 report, so the assessment is not a step to rush or to entrust to someone without the right competence. A thorough, correct assessment by a suitably qualified engineer gives the application the solid foundation it needs; a weak one undermines everything that follows.

Getting the engineering right

The DCB scheme is complex and its details are set by government, but the engineering at its heart (the IS 465 assessment) is where an affected homeowner most needs sound, competent advice.

Banrach Consulting Engineers are Chartered Structural Engineers specialising in building defects and movement. If you are dealing with suspected defective concrete blocks and need to understand your position, call 01 627 3195 to discuss whether we can assist with a structural assessment. For what the assessment itself involves, see our companion guide to IS 465 testing, and always check the official scheme information for current eligibility, limits and covered areas.

For official eligibility, grant limits and covered areas, see the Defective Concrete Blocks scheme information on gov.ie.

Note: This article is general guidance, not a structural assessment of your property. Building defects vary from case to case and should be assessed on site by a Chartered Structural Engineer. Banrach Consulting Engineers can advise; call 01 627 3195.

Frequently asked questions

• How does the Defective Concrete Blocks grant scheme work?

  It is a government scheme, administered through local authorities, that funds the remediation of homes damaged by defective concrete blocks. It depends on an IS 465 assessment by a competent engineer, which establishes the cause, categorises the damage and sets the remediation option. The homeowner applies to the relevant authority with the engineer's report as the core evidence.
• Do I need an engineer's report for the DCB grant?

  Yes. The scheme is built around an IS 465 assessment carried out by a competent engineer. That report confirms that defective blocks are the cause, assigns the damage category and determines the remediation option on which the grant is based. Without it, there is nothing for the scheme to act on.
• What does the DCB grant cover, and who is eligible?

  Eligibility, grant limits and the counties covered are set by government and can change, so they should be checked against the official scheme information rather than relied on from a guide. What is consistent is that the scheme funds eligible remediation, and that an IS 465 engineer's report is central to the application.
• What are the steps to apply for the scheme?

  In outline: seek advice on whether defective blocks are the cause; have a competent engineer carry out an IS 465 assessment and produce the report; apply to the relevant local authority with that report; the authority then assesses the application and, where you are eligible, approves a grant based on the categorised remediation; finally, the approved works are carried out.