The green certificate: 0.15% on its own, around 0.05% combined with other discounts.
Banks advertise the base offer accurately: there, the green certificate alone cuts the rate by 0.15%. But most clients stack discounts to reach a lower rate — and then the certificate's contribution is about 0.05%, because the rate hits a floor. Both numbers are true. Here are the mechanics, and which part of the housing stock it applies to at all — without decoration.
Updated: August 2026 · bank terms and examples are illustrative as at the date · EPBD / ETS2 frameworkAlone / combined
0.15% with no other discounts · ≈ 0.05% with cross-sold services
Use a combination of discounts
cross-sold services for a lower rate (life insurance / salary / pension fund)
Threshold for class A/B
UniCredit: energy indicator 96–150
Effect on €150,000 over 30 years
at 0.05% combined, down to the floor
How the discount is formed
When the certificate cuts 0.15% and when 0.05%.
The green mortgage is a specific product: you present an Energy Performance Certificate and the rate falls. The size depends on whether you are also using other discounts. The figures for the "combined" case come from FinCity's practice as a credit intermediary — what actually happens at the counter once discounts stack up.
| Bank | On its own (no other discounts) |
Combined (the typical case) |
Condition (class / energy) |
|---|---|---|---|
| UBB | –0.15% | ≈ –0.05% down to the floor | Class A/B; primary energy ≤ 150 kWh/m². "Standard" = without life insurance / salary / pension fund. |
| UniCredit Bulbank | does not publish a figure | up to –0.05% down to the floor | Class A or B; energy indicator 96–150 kWh/m². |
| Postbank | 0.15% / 0.10% for improvements | ≈ 0.05% | Class A+ or B; primary energy ≤ 150 kWh/m². |
| FIB | 0.10% | on enquiry | Class A+, A, B or higher. |
| DSK | campaign-based (check status) | — | Class A+, A or B. |
"On its own" = the certificate's discount against the base offer when no other discounts are used — what the banks advertise. "Combined" = the certificate's contribution once cross-sold discounts have already been stacked, per FinCity's practice. The figures are indicative, they change, and they are set individually; check current terms directly with the bank concerned.
The scope
A small discount, on a small part of the market.
Even the standalone 0.15% only works where there is something that can be certified as class A/B. And that is a small part of the market.
- More than three quarters of the country's apartments are in buildings over 30 years old. The dominant stock is prefabricated panel and brick construction from the socialist era and earlier.
- The energy classes of that stock are concentrated in C–G; class A/B is in practice found in new construction (buildings after 2021 are as a rule near-zero energy) and in deeply renovated buildings.
- Consequence: the vast majority of what is actually traded — on the order of over 85% — does not meet the condition at all. For those transactions the product does not exist.
Put the two together: a small discount with a ceiling (≈ 0.05% combined), applicable to a minority of the stock. The effect on the market in aggregate is close to nil. This is an ESG signal and a differentiation tool for new construction, not a lever that moves demand, supply or prices.
| Energy class | Typical stock | Heating cost | Green discount | Regulatory pressure (EPBD / ETS2) |
|---|---|---|---|---|
| A+ / A | New construction (after 2021, nZEB) | Low | Yes (0.05% combined) | Minimal |
| B | New / deeply renovated | Low–medium | Yes (0.05% combined) | Low |
| C–D | Newer brick, partly renovated | Medium | No | Rising |
| E–G | Panel and older stock (the majority) | High | No | Strongest |
An indicative picture, not a valuation of any specific property. The point is to see where the benefit falls (the upper rows, the minority) and where the pressure falls (E–G, the majority).
The regulatory framework
Where regulation is pushing — precisely, and with the right dates.
The direction of the European framework is clear, but the specifics are often relayed in distorted form. The facts:
- EPBD (the recast Energy Performance of Buildings Directive) introduces a renovation trajectory and pressure on the worst-performing stock. The effect is spread over time, not one-off.
- ETS2 (the carbon market for building heating fuels and transport) does not start in 2027 — in 2026 the Council and Parliament postponed it by a year, and the start is 2028. The obligation falls on fuel suppliers, not the end consumer, and there is a price stabilisation mechanism and a Social Climate Fund for vulnerable households.
The mechanism is real on the cost side: over time, heating an energy-inefficient home with fossil fuels gets more expensive. On the financing side, though, the effect is heavily overstated. In a market where owner-occupation is around 86% in Bulgaria and up to 94% in Romania — against an EU average of 68% — the financeable stock is overwhelmingly class C–G. A bank that restricted lending to efficient homes would be voluntarily walking away from most of its own market. That is not a workable scenario. The realistic outcome is at most a marginal difference in risk-based pricing; any price premium for energy efficiency, if it materialises at all, is a matter of a horizon well beyond a decade.
The bigger picture
The collision that policy underestimates.
It is worth naming both sides here, without taking one.
On one side is the logic of decarbonisation: buildings are a large source of emissions, and renovation lowers bills and raises the value of the asset. On the other is the hard reality of the stock and of need: housing is not an optional purchase, the dominant stock is old and will not become class A/B for years to come, and the pace of renovation is slow.
To that, add scale. The property market, together with the sectors around it — construction, services, related business — accounts for a significant share of GDP in many countries inside the EU and beyond. A policy that in practice shrank the financeability of the dominant stock would run directly against demand, supply and the wider economy — which is why it does not happen. The realistic scenario is neither a crash nor a refusal of credit, but a slow stratification by cost of ownership: lower bills for the efficient minority, higher for the inefficient majority. A price premium for efficiency itself, if it appears at all, is a question of a long horizon, not the next few years.
For the buyer
What this means for you.
- Don't chase the certificate for the rate. On its own it cuts 0.15%, but if you already use cross-sold services for a lower rate, its contribution is around 0.05% down to a floor. The cross-sold services and the base rate move the payment far more — ask about the whole structure of the offer, not just the "green" discount.
- Buying new, class A/B: take the discount — it is pure benefit. But the price premium on an efficient home usually exceeds it. You are paying for a lower cost of ownership, not a cheaper loan.
- Buying from the older stock: budget for the future cost — renovation and more expensive heating after 2028. Expect neither a collapse in price nor a refusal of financing: with owner-occupation at this level, banks cannot abandon the dominant stock. The cost of ownership is simply no longer a constant.
- In both cases what matters is that the budget is calculated against the real cost of ownership and the whole structure of the interest rate, rather than against one number taken in isolation. This is exactly where a validated budget and a transparent rate build-up make the difference.
The real budget first. Then the right property.
Find out what loan is achievable for you and what the whole structure of the rate looks like — free and without commitment, before chasing individual discounts.
Work out your budgetSources and clarifications
- Standalone discount (base offer), publicly announced by the banks: UBB "Energy Efficient Home" (0.15%; class A+/A/B; ≤ 150 kWh/m²); Postbank "Green Home Loan" (0.15% / 0.10% for improvements; class A/A+); FIB "Sustainable Future" (0.10%; class A+/A/B).
- Discount in combination with other discounts — per FinCity's practice as a credit intermediary (field data): where the client already uses cross-sold services, the certificate's contribution is around 0.05% at the three banks checked (UBB, UniCredit, Postbank), for class A+/A/B up to 150 kWh/m²; at UBB and UniCredit down to a mandatory interest rate floor. UniCredit applies a condition of an energy indicator of 96–150 kWh/m².
- Structure of the stock: World Bank — "Bulgaria: Housing Sector Assessment" (more than three quarters of apartments are in buildings over 30 years old); Ministry of Regional Development — analysis of the national residential building stock (dominance of classes E/F/G).
- Owner-occupation (2024): Eurostat — Bulgaria ≈ 86%, Romania ≈ 94% (the highest share in the EU), EU average ≈ 68%.
- ETS2 (start 2028 after the postponement): European Commission; European Environment Agency; ICAP. EPBD — recast directive: European Commission.
The data is informational and does not constitute investment, legal or tax advice, nor a valuation of any specific property or credit offer. The numerical examples are illustrative as at the date of publication; bank terms, promotional rates and discounts change and are set individually by the lender according to the profile, term, security and services used. Before deciding, check current terms directly with the bank concerned and take independent advice.