November 20, 2025

Homes with better energy efficiency are appreciating more in the Portuguese market. In 2025, A-class energy certificates surpassed those of class C, reflecting a shift in mindset among buyers and investors.

Energy efficiency is no longer a technical detail but a key factor in property appreciation. A more efficient property reduces monthly costs and becomes more attractive for sale or rental. Interventions such as thermal insulation, efficient windows, and new HVAC systems increase comfort and property value.

Properties with better energy performance offer lower operating costs (less spending on heating, air conditioning, electricity) and are more appealing to demanding buyers.
In the Portuguese context, tax incentives strengthen this appeal: improvements that lead to class upgrades can generate reductions in IMI or even exemptions in certain cases.
Despite this, many property owners are unaware of the tax benefits and the improvements that offer the highest returns. Certification also requires coordination with qualified technicians.

IMMOPO is attentive to market trends and aware of current requirements regarding sustainability and energy efficiency. For this reason, it offers thoughtful and carefully selected purchase options, both in the brokerage and promotion of new developments and in the architectural projects it is involved in.

If you are looking for a property with good energy efficiency and strong appreciation potential, talk to IMMOPO — we help you find the right investment.

Source: Diário Imobiliário, Deco Proteste, ADENE
IMMOPO Real Estate, Mercado Imobiliário