Property Energy Efficiency — What Is an EE Certificate and How It Affects Apartment Prices

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When choosing an apartment or house, you probably check location, square footage, floor, and price. But one detail that many buyers completely overlook — yet one that can directly affect your monthly costs and the resale value of a property — is the energy performance certificate.

In Serbia, legislation on this matter is becoming increasingly strict. Understanding what this certificate means is no longer optional — it’s part of a smart buying and selling process.


What Is an Energy Performance Certificate?

An energy performance certificate (shortened: EPC or EE certificate) is an official document describing how much energy a building or apartment consumes per year. The result is expressed in kWh/m² per year and places the property in one of several energy classes.

Classes range from A+ (most efficient) to G (least efficient):

Class Energy Consumption Description
A+ < 15 kWh/m²/yr Passive house, near-zero consumption
A 15–30 kWh/m²/yr Exceptionally efficient
B 30–60 kWh/m²/yr High energy efficiency
C 60–105 kWh/m²/yr Good efficiency — new construction standard
D 105–150 kWh/m²/yr Average efficiency
E 150–200 kWh/m²/yr Below average — old building without insulation
F 200–250 kWh/m²/yr Poor efficiency
G > 250 kWh/m²/yr Very high consumption

Most old buildings without thermal insulation in Serbia fall into classes E and F, while well-built new construction achieves C or B.


When Is the Certificate Mandatory in Serbia?

Under the Law on Efficient Use of Energy, the EE certificate is mandatory:

  1. For all new buildings — before technical inspection and obtaining an occupancy permit
  2. When selling a property — the seller is required to provide a valid certificate
  3. When renting — the landlord must have the certificate and show it to a prospective tenant
  4. For major renovations — when reconstruction changes the energy characteristics of a building

In practice, enforcement of this law is not always consistent — especially in the sale of older housing stock. However, the trend is clear: the EE certificate is becoming a standard part of property documentation, just like a land registry extract.


Who Issues the Certificate and How Much Does It Cost?

The certificate is issued by an authorized energy manager or auditor, licensed by the Energy Agency of the Republic of Serbia (AERS).

The process includes:

  • Inspection of the building and measurement of envelope characteristics (walls, windows, roof, floor)
  • Analysis of heating, cooling, and ventilation systems
  • Calculation of annual energy consumption
  • Issuing the certificate, valid for 10 years

Approximate costs:

  • Apartment up to 80 m² — €80 to €180
  • Apartment 80–150 m² — €150 to €280
  • House or larger building — €250 to €500

The certificate is paid for by the property owner.


How Does the Energy Class Affect Property Price?

The link between energy class and property price is becoming increasingly pronounced — for two key reasons.

1. Direct Savings on Bills

For a 60 m² apartment:

  • Class C: ~5,400 kWh/yr → approximately €540/yr for heating
  • Class E: ~10,500 kWh/yr → approximately €1,050/yr for heating

Difference: approximately €510 per year — or over €40 per month.

Buyers are increasingly aware of this calculation — and more willing to pay more for an apartment that costs them less in the long run.

2. Market Attractiveness and Liquidity

Properties with higher energy classes sell and rent more easily. In EU markets, where this practice is more developed, the price difference between class A and class E can be 10 to 20% for the same type of property.

In Serbia, this gap is currently smaller — but the trend is growing, especially among younger buyers and those financing their purchase with a mortgage (banks are increasingly requiring an EE certificate when approving home loans).


What Sellers Need to Know

Get the Certificate Before Listing

An EE certificate helps you:

  • Clearly communicate your property’s advantage (or realistically acknowledge its shortcoming)
  • Avoid potential legal liability for non-disclosure
  • Speed up the sale process — serious buyers don’t like waiting for documentation

Consider Minor Improvements Before Selling

Replacing old windows, adding thermal insulation, or installing an efficient boiler can raise your energy class and increase property value. It’s not always profitable, but in some cases an investment of €1,500–3,000 pays off through a higher sale price.

Transparency Builds Trust

A buyer who sees the certificate feels they’re dealing with a serious seller. This also shows in the flow of negotiations.


What Buyers Need to Know

Always Ask for the Certificate

If the seller doesn’t have a certificate — that’s a reason for caution. Either they don’t know what they’re selling, or they know the property doesn’t perform well.

Calculate Total Cost of Ownership

A cheaper apartment in class F can cost you more than a more expensive one in class B — when you add up heating bills over 10–15 years.

Use the Certificate in Negotiations

A low energy class is a legitimate negotiating tool. Estimate the cost of improvement and ask for a discount that reflects it.


New Construction and Energy Efficiency — What to Watch For

New apartments necessarily have a certificate — and typically fall into class C or B. But that doesn’t mean all are equal.

Ask the developer or agent:

  • What heating system does the building use? (district heating, gas, heat pump — all have different operating costs)
  • Does the building have its own heat substation? (centralized control can be unfavorable)
  • What is the thickness of the facade insulation? (standard is 12–15 cm; poorly built units have 6–8 cm)
  • What type of window glazing? (triple glazing is standard for A/B class)

ENERGY-REA and Energy Efficiency

At ENERGY-REA, every property in our portfolio has a clearly indicated energy status — no hiding, no exaggerating.

If you’re thinking about buying or selling a property and are unsure of its energy class, our team can:

  • Point you to authorized assessors in your city
  • Help you interpret a certificate that has already been issued
  • Factor in the energy class when making a realistic valuation of the property

Contact us — a free consultation is always available.