Defective Concrete Blocks (Mica) Grant
100% of the grant the Housing Agency approves for your home, worked out from fixed rates and capped at €462,000. It may be less than the full cost of the work.
Last checked October 2026
What it is
A grant to remediate a home structurally damaged by defective concrete blocks (mica or pyrite in the blocks themselves), worked out by the Housing Agency from fixed grant rates and capped at €462,000 per home. Open to homeowners in Carlow, Clare, Donegal, Limerick, Mayo, Sligo and parts of Fingal, Meath and Wexford (Carlow and parts of Meath were added on 8 July 2026), for your principal private residence or a home you rent out that was registered with the RTB on or before 1 November 2021. The Housing Agency sets the grant for your home case by case. This is separate from the older Pyrite Remediation Scheme, which covers pyritic heave in the floor hardcore in the east of the country.
Who can get it
- Your home is in Carlow, Clare, Donegal, Limerick, Mayo, Sligo or the covered parts of Fingal, Meath or Wexford
- It is your principal private residence, or a rental registered with the RTB on or before 1 November 2021 (a maximum of one rental property per household)
- The damage is caused by defective concrete blocks
- The grant is 100% of the amount the Housing Agency approves for your remediation option, worked out from the Minister's grant rates, or 100% of the actual vouched cost if that is lower. The overall cap is €462,000 per dwelling. If the real cost is above the approved amount, you pay the difference.
- The Housing Agency works the grant out house by house, so the amount depends on what your property actually needs.
- Rental properties can qualify only if the tenancy was registered with the RTB on or before 1 November 2021. There is a maximum of one rental property per household, and a clawback applies if you sell within a set period that depends on the remediation option.
How to apply
Applications go through Housing Agency. The official page has the full eligibility rules and the application itself.
Go to the official page →Checked against the official source on 20 October 2026. Always confirm the details on the official page before applying.
Questions people ask
How much is the Mica grant worth?
Up to €462,000. You get 100% of the grant amount the Housing Agency approves, which is set from fixed grant rates, or the actual vouched cost if that is lower. It may not cover the full cost of the work.
Which counties are covered by the Defective Concrete Blocks Scheme?
Carlow, Clare, Donegal, Limerick, Mayo and Sligo, plus parts of Fingal, Meath and Wexford. Carlow and the Meath areas were added on 8 July 2026.
Can I claim if the house is rented out?
Yes, if the tenancy was registered with the Residential Tenancies Board on or before 1 November 2021. Only one rental property per household can qualify and a clawback applies if you sell within a set period.
Who decides how much I get?
The Housing Agency assesses each property individually and works out the grant for your particular house.
Related guides
- Vacant / Derelict Property Grant
- Local Authority Purchase and Renovation Loan
- Ready to Build sites
- Living City Initiative
- Pyrite Remediation Scheme
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