How can you compare a Mediterranean home’s energy costs? Orientation, shade and insulation

Assess the building documents, sunlight and consumption records together when estimating a home’s energy budget.

Two apartments on the same street can be equally spacious yet feel different throughout the day. One living room receives prolonged direct sun; another is shaded. To estimate a Mediterranean home’s energy costs, examine orientation, windows, insulation, equipment and household habits together.

Start with documents, then inspect the apartment

Turkey’s Energy Performance Certificate, or Enerji Kimlik Belgesi, covers a building’s energy needs, consumption classification, insulation and heating or cooling efficiency. Ask the seller for it and confirm that it relates to the building you are considering. Energy Ministry: Energy Performance Certificate.

Consider the document alongside your intended use. How many people will live there, when will you be home, and which rooms will you use? These answers help you interpret previous consumption.

Ask about window frames, glazing and the surfaces covered by any insulation. Review installation dates and technical documents where available. For apartments directly beneath the roof or just above the ground, include those surfaces in your comparison.

Check sunlight and equipment during your visit

Visit in the morning and afternoon to understand when sunlight reaches each room. Note the effects of balconies, neighbouring buildings and existing shading. Look at the apartment’s actual daily conditions alongside its compass orientation.

Find out the air conditioners’ models, capacity, age and maintenance history. Ask whether technicians can access the outdoor units. The Energy Ministry’s efficiency booklet highlights appropriate equipment capacity and unobstructed airflow around indoor and outdoor units. Energy efficiency booklet.

If you plan to change shading or equipment positions, discuss feasibility with a specialist and the building management. Obtain an inspection and quotation before settling on a cost from photographs.

Read bills alongside occupancy information

If possible, request the last twelve months’ consumption records. Record electricity in kWh, natural gas in m³ and the billing periods. Previous occupants’ household size, months of occupancy and preferred temperature settings can affect consumption.

Avoid comparing three vacant months in one apartment directly with continuous occupancy in another. Match periods with similar use. When calculating at current unit prices, check the tariff and fixed charges separately; a past bill in Turkish lira cannot establish future costs with certainty.

Keep four headings in your decision checklist: documents, consumption, sunlight and equipment. Write down questions wherever information is missing. Covering all four makes it easier to see what still needs clarification before deciding whether the apartment suits your energy budget.