1) Why is ethics at the centre of restoration?

A historic building is not just a property, not just an architectural object; it is the physical carrier of collective memory. Therefore restoration decisions cannot be shaped by personal taste, current fashion or short-term economic expectations. An ethical approach turns restoration from a personal design arena into a public responsibility.

2) The balance between “intervening” and “not intervening”

At the heart of ethical dilemmas in restoration is this question: How much should we intervene in the building? Both extremes are problematic: no intervention at all → turning a blind eye to the building slowly disappearing; excessive intervention → erasing the building’s authenticity. Ethical restoration finds a balanced decision between these two poles: it ensures the building is preserved but does not rewrite it.

3) Authenticity: The core value to preserve

At the centre of restoration ethics lies the concept of authenticity. Authenticity does not mean only “the original state”; it encompasses material, construction technique, spatial organisation, layers formed over time and traces of use. An unethical approach is to reduce the building to a single period and erase other historical layers as “unnecessary”. Yet each layer is part of the building’s story.

4) Where does completion cross the ethical line?

Completing missing or collapsed parts is one of the most sensitive topics in restoration. The ethical problem: completing an undocumented condition by saying “it must have been like this”. Such interventions distort historical reality, make permanent an interpretation that does not belong to the building and mislead future generations. The ethical principle: If there is no document, there is no claim.

5) Imitation or contemporary addition?

New additions and interventions can be an inevitable part of restoration. The wrong approach: making new additions look old, producing a false history. The right approach: not concealing what is new, but not turning it into a display either; making it compatible with the old but distinguishable. Ethical restoration is honest restoration.

6) Use pressure and ethical conflict

In the reuse process the following pressure often arises: more space, more users, more revenue. This pressure can lead to stretching ethical boundaries: dividing original spaces, overloading the load-bearing system, irreversible interventions for technical systems. In an ethical approach the priority must be: the building’s capacity, cultural value and long-term sustainability. Use should serve the building; the building should not be the victim of use.

7) Why is “reversibility” so important?

One of the fundamental principles of ethical restoration is reversibility. The intervention we make today should be open to question by another expert tomorrow and, if necessary, reversible. Permanent, rigid and scarring interventions lock the building into a single period and block potentially more correct solutions in the future. Restoration is not about passing final judgment; it is about keeping possibilities open.

8) The invisible but most critical ethical issue: documentation

Documenting every intervention made is an ethical obligation. Undocumented restoration is not transparent, cannot be audited and is not scientific. In ethical restoration: what was done, why it was done and how it was done are clearly recorded. These documents are a trust for the building’s future.

9) In whose name is restoration carried out?

This question lies at the heart of the ethical debate. Is restoration only for today’s user? Only for the building owner? Or for society and future generations? The ethical answer: Restoration is done in the name of the past, through the present, for the future. Decisions taken without this perspective remain incomplete.

10) Conclusion: Ethical restoration knows its limits

In historic buildings restoration cannot be carried out with a “the more we do the better” mindset. Not every technical solution may be ethically right. Real success is when the building still stands as itself, when the building speaks rather than the intervention. Ethical restoration is possible with a knowledgeable, patient and humble approach. That is also what is most difficult.