For the purpose of informing all co-owners about the correct procedure regarding the enclosure of balconies or loggias, we inform you of the following:
1. Works that DO NOT CHANGE the intended use of the space (loggia/balcony remains a loggia/balcony)
According to Article 5, Paragraph 9.a of the Ordinance on Simple and Other Buildings and Works, the enclosure of a balcony or loggia that retains its original use may be carried out without a building permit, but only on the basis of a prepared main design project.
Such works include:
- adding or replacing transparent façade elements (e.g., glass walls),
- adding thermal/hydro insulation, roofing, ventilation, heating or cooling equipment,
- works on electrical installations, sewage, water supply, gas installations, etc.
- These works are considered regular management tasks and require:
- an absolute majority of co-owners if financed from private funds,
2. Works that CHANGE the intended use (e.g., loggia becomes a room)
If the enclosure changes the intended use of the space, and the balcony/loggia becomes living space (e.g., extension of a room or kitchen), this constitutes a reconstruction.
In accordance with the Construction Act, a building permit is required.
3. Preparation of unified technical documentation
In buildings where several co-owners wish to enclose loggias/balconies, a unified main project can be prepared for the entire façade.
This documentation does not obligate execution but allows co-owners to carry out works under the same conditions, in compliance with regulations and with aesthetic consistency of the façade.
4. Obligation to comply with legal regulations
Any modification of a building façade (including the enclosure of loggias and balconies) must comply with applicable laws and regulations, with the necessary consents of co-owners.
Unauthorized works without a project, without co-owner consent, or without a permit (if required) may result in inspection bans, fines, and the obligation to remove executed works.
