Mica & Pyrite Check: Co. Mayo
18 official risk checks for any property in Co. Mayo. Built on official Irish government data.
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Official data sourced from Irish government agencies
Mica & Pyrite in Co. Mayo, Connacht
Mayo is designated in full under the Enhanced Defective Concrete Blocks Grant Scheme, which is remediating thousands of mica-damaged homes across the designated counties. That makes defective-block checks critically important for Mayo property buyers. Every PropertyPack report includes the county's official scheme designation status, what it means for a purchase in Castlebar, Ballina, Westport or the wider county, and I.S. 465 assessment guidance.
location_onCo. Mayo at a Glance
- Population
- 137,000
- Province
- Connacht
- Coastline
- Coastal county
- Character
- Predominantly Rural
- Main Rivers
- Moy, Erriff, Robe
- Median Price (2026)
- €230,000 (+4.5% YoY)
- Radon (of homes tested)
- 17.6% at/above 200 Bq/m³
- Recorded Flood Events
- 225
- Mica/Pyrite (DCB Scheme)
- County designated
Sources: Property Price Register (sales to 2026); EPA radon measurements to 2019 (self-selected sample — % of homes tested, not prevalence); past flood events derived from OPW floodinfo.ie data; DCB scheme designations via gov.ie.
Mica & Pyrite Scheme Status: Co. Mayo
Two separate State schemes cover block and sub-floor defects. Co. Mayo is a designated area under the Enhanced Defective Concrete Blocks Grant Scheme, with grants of up to €462,000 per home. The Pyrite Remediation Scheme for pyritic-heave damage does not cover the county.
Defective Concrete Blocks Grant Scheme
Designated Area- Maximum grant
- €462,000
- Applications nationally (to June 2026)
- 3,598
- Remediations completed
- 542
- State spend since 2020
- €361m
Pyrite Remediation Scheme
Not a Scheme AreaThe scheme covers pyritic heave — floor and slab movement from reactive pyrite in sub-floor hardcore — in the Dublin local authorities, Kildare, Meath, Offaly, Westmeath and Limerick, for homes built 1997–2013. It closes to applications on 30 November 2026.
What This Means When Buying in Co. Mayo
- Suspected defective-block homes are assessed under I.S. 465 (revised edition published June 2026) by a registered building professional — cracking patterns in external walls are the classic sign.
- A remediated home should come with paperwork: a Letter of Assurance under the DCB scheme, or a Certificate of Remediation under the pyrite scheme. Ask for it.
- DCB grants carry a clawback on resale within a set period, and the pyrite scheme excludes buyers who purchased after December 2013 knowing of the damage — an unremediated home may have no State remediation route after the scheme closes.
Sources: gov.ie — Department of Housing, Local Government and Heritage (Enhanced Defective Concrete Blocks Grant Scheme, designations and scheme statistics to June 2026); Pyrite Resolution Board (Pyrite Remediation Scheme, as adopted January 2026).
Read mica and pyrite checks before buying a house — what a county designation does and doesn't tell you about an individual home.
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Enter the Eircode of any Co. Mayo property.
Official Risk Checks
Government Data Sources
Average Snapshot Time
Counties Covered
What We Check for Every Mayo Property
Every PropertyPack report runs 18 checks. Here are 12 of the key risk categories, all aggregated from official Irish government data.
Plus more checks across insurance, neighbourhood, transport and more.
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Know the risks before you sign in Mayo
Discover the full picture of any Mayo property. Our reports combine data from 12 official sources to simplify your due diligence and protect your investment.
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Mica & Pyrite in Mayo: FAQs
A PropertyPack report for any Mayo address covers 18 risk categories: flood risk (OPW data), radon levels (EPA data), BER ratings (SEAI), property prices (Property Price Register), crime statistics (CSO), school catchment, broadband speeds, planning applications, air quality, noise levels, and more. Each check runs for the Eircode you enter, with the data's confidence level labelled where a source is only published at county or division level.
The full 18-check PDF report for any Mayo address costs €29. House-hunting across several properties? A 3-report bundle is €59 and a 5-report bundle is €79. You see a free snapshot first — no card needed.
Yes — Mayo is designated in full under the Defective Concrete Blocks Grant Scheme, which funds remediation of homes damaged by defective blocks; thousands of homes across the designated counties are affected. Every PropertyPack report flags the county's official scheme designation for any Mayo Eircode, with I.S. 465 assessment guidance.
Risk levels vary across Mayo depending on which factor you're considering. Properties away from Moy, Erriff and Robe flood plains have lower flood risk. For radon, 17.6% of homes tested in Mayo measured over the Reference Level — the EPA's map shows which areas are classified as High Radon Areas. Well-established residential areas in Castlebar, Ballina, Westport tend to have better broadband, lower crime, and closer school access. PropertyPack helps you compare specific locations within Mayo across 18 risk categories.
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