Although some renovations are exempt from prior control, this does not imply exemption from the application of current legislation, namely Ordinance No. 138-I/2021 which supports Decree-Law No. 101–D/2020, regarding the opaque envelope (walls, roofs, and floors) and glazed envelope, ventilation systems, air conditioning systems, hot water preparation systems, electric power generation systems, lifting installations, electric vehicle charging infrastructures, and, additionally for commercial and service buildings, fixed lighting systems and building automation and control systems (BACS).
It is important to note that, according to paragraph 3 of article 5 of Decree-Law No. 101-D/2020, “in situations involving works on buildings subject to renovation exempt from prior control, compliance with applicable requirements must be ensured by the contractor or, when none exists, by the qualified technician hired by the owner, based on technical documentation characterizing the applied solutions.”
Thus, it is advisable to carry out an Energy Certificate before the works in order to advise on possible improvement measures to be implemented.
