BER Uplift
The improvement in a home's Building Energy Rating from energy-efficiency works - and the resale-value premium that tends to follow it.
A Building Energy Rating (BER) certifies a home's energy performance on a scale from A0 to G, and is valid for up to 10 years unless works are carried out that change it. (The scale was simplified in May 2026, removing the old sub-bands such as B1/B2/B3 in favour of single letter grades.) A BER uplift is the jump in that rating from works such as insulation, a heat pump, better windows or ventilation. Each letter of improvement represents a materially different energy-cost and comfort profile - and Irish research using property-listing data has repeatedly found it is reflected in what buyers are willing to pay, though the exact premium varies by location and comparable stock.
For solar, heat-pump and insulation installers, the BER-uplift argument reframes the job from an expense to an investment - not just lower bills, but a documented resale-value case, which is often the more persuasive pitch to a homeowner weighing the cost.
PlanningLeads' free Home Energy & Grant Report estimates a home's likely current BER band from its age and heating type, and models the BER uplift - and its directional resale-value impact - if the recommended solar, heat-pump or insulation works are carried out.
See it in live data
Common questions
Irish research using property-listing data has found each better BER band is associated with a resale premium, typically in the low single-digit percent per band - directional context, not a formal valuation.
Up to 10 years, unless works that affect the home's energy performance are carried out, which requires a new assessment.
Yes - the BER must be disclosed in property advertisements, including rental listings, not just sales.
This is a plain-English summary, not legal advice. Planning rules carry conditions and exceptions - always verify a specific case against the official source or a planning professional before acting.