Total Certs
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BER certificates
A & B Rated
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Energy efficient
E, F & G Rated
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Retrofit potential
Avg Floor Area
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Square metres
Rating Distribution
Share of certificates by BER grade
Decade of Build
Energy class by construction era (A+B / C+D / E–G)
Retrofit Opportunity Breakdown
Share of housing stock by energy band — higher E/F/G share = greater retrofit opportunity
Retrofit Cost Estimator
Estimate typical retrofit costs and SEAI grant amounts to reach a target BER rating. Based on SEAI Better Energy Homes 2025 grant rates. Verify current grants at SEAI.ie →
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Energy Efficiency Legislation Timeline
Upcoming BER requirements for Irish rental properties — plan retrofits ahead of deadlines
2022
Enacted
New builds must comply with NZEB (Nearly Zero Energy Building) standard — BER A2 required for all new residential planning permissions granted from November 2019.
2025 — Now
Proposed
New rental tenancies: BER C or higher required under the Housing for All action plan. Applies to new tenancy agreements from 1 January 2025. Existing tenancies are not yet affected.
May 2026
EU EPBD
Simplified BER scale in force from 24 May 2026: 15 grades reduced to 8 (A0, A, B, C, D, E, F, G), all sub-grades removed. New A0 band for zero-emission buildings (primary energy < 42 kWh/m²/yr, no fossil fuels). Existing certificates remain valid for 10 years from issue.
2028
Draft
Irish government target: all rental properties BER C+, including existing tenancies. Not yet enacted in legislation — watch for updates to the Residential Tenancies Acts.
2030
EU EPBD
EU Energy Performance of Buildings Directive: all rental properties must meet minimum EPC Class E (equivalent to BER F or better) across all EU member states.
2033
EU EPBD
EU Energy Performance of Buildings Directive: all rental properties must meet minimum EPC Class D (equivalent to BER D or better). Fines for non-compliance may apply.
| Rating | Band | Certificates | Share | Avg Area (m²) |
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