In Opereta’s office “Opereta projektiranje d.o.o.” in Bisačka Street no.14, Zagreb, along with other real estate and architectural designing  services, you can have the energy certificate for your apartment, house or business space done quickly and inexpensively, and find out which energy class your property belongs to.

For any questions, please feel free to contact us via the contact form below.

We respond in the shortest possible time.