Energy certification: A key to increasing the value of your property in Portugal

Energy efficiency is no longer just a legal requirement - it is now a determining factor in the valuation of real estate. With consumers becoming increasingly demanding and aware of the environmental and economic advantages, investing in energy certifications is becoming a smart strategy for property owners and investors.

What is energy certification and why is it mandatory?

Energy certification assesses a property's performance in terms of energy consumption. Mandatory in purchase and rental transactions since 2013, this certification assigns classes between A+ (most efficient) and G (least efficient). The better the rating, the lower the monthly energy costs, the greater the thermal comfort and, consequently, the greater the interest of potential tenants or buyers.

Direct impact on profitability and appreciation

• Return on rents: A/B certified properties attract tenants willing to pay more for efficiency and comfort, especially in urban areas.
• Market value: Studies show that a higher rating can increase the sale value by between 5 and 10%, depending on the region and type of property.
• Competitive differentiation: In a saturated market, energy certification can be the deciding factor in choosing a property.

Tax benefits (effective 2025)

• IRS and IRC: Deduction of expenses for works that improve efficiency (up to 30%), such as insulation, windows or renewable systems.
• IMI: Discounts of up to 20% for local entities that adopt green policies, applicable to certification and the implementation of clean energies.

How to improve your property's energy rating

• Efficient thermal insulation: Installing double-glazed windows or improving façade cladding reduces heat loss and air conditioning costs.
• Renewable energy systems: Solar thermal panels for DHW heating or photovoltaic panels for your own consumption significantly increase the value of your property.
• Heating/air conditioning: Heat pumps or air conditioning with a high energy rating are intelligent and valuable options.

Energy certification is an investment with a guaranteed return: it increases the value of the property, reduces operating costs and strengthens the chances of attracting the right profile of tenants or buyers. This is an essential step for any long-term real estate strategy.

If you want to increase the value and efficiency of your properties, talk to IR Group. Our specialized team will guide you in optimizing profitability. Invest efficiently - find out how IR Group can help.