Current Selection: D Rating (Moderate)
ℹ️ Sub-categories (A1-A3, B1-B3, C1-C3, D1-D2, E1-E2) were consolidated into 8 clear categories by SEAI on May 24, 2026. Legacy 10-year certs remain valid.
2. Click Retrofit Dominoes to Leap the Scale
🏠 300mm Attic Insulation Cross-Layer
Jumps +1 Full Grade (e.g. D ➔ C) · +€8,500 Equity Surge · €2,500 Grant
🧱 100mm External Wall Insulation Wrap
Jumps +1 Full Grade (e.g. C ➔ B) · Unlocks 3.45% Green Mortgage · €8,000 Grant
❄️ Air-to-Water Heat Pump & Low-Flow Balancing
Jumps +1 Full Grade (e.g. B ➔ A) · Replaces fossil fuel heating · €12,500 Grant
☀️ 4.3 kWp Rooftop Solar PV & Inverter
Secures A0 Zero-Emission Tier · 24c/kWh Clean Export Grid Cash · €1,800 Grant
🪟 High-Performance Triple Glazed Windows & Doors
Eliminates thermal window drafts · €5,600 Grant
3. Value Surge & Green Banking Gains
Post-Retrofit Value
€423,500
Green Mortgage Status
✔ 3.45% UNLOCKED
Annual Fuel Slashed
-€2,750 / yr
Eligible SEAI Grants
€24,800
🏛️ Green Banking Arbitrage: Reaching a 'B' rating or better automatically qualifies your property for 3.45% Green Mortgage discounts with AIB, Bank of Ireland, PTSB and Haven, saving an additional €2,760/yr in interest on a €300k mortgage.