Special Protection Zone (ZEP)

A Special Protection Zone (ZEP) safeguards the surroundings of an immovable cultural asset. It has its own boundaries and conditions to preserve landscape, urban and architectural context. The classified asset and its surrounding zone are separate objects when reading a record.

Three instruments to distinguish

• ZGP — general protection zone: under the regime for national or public-interest assets, it extends 50 metres from the asset’s external boundaries. It is not a circle centred on its map coordinate.
• ZEPP — provisional special protection zone: it may be established during the procedure when the general zone is inadequate.
• ZEP — special protection zone: its boundaries and rules are adapted to the asset and setting through a separate act.

Decree-Law No. 309/2009 provides for general or provisional protection to continue until publication of the special zone for national and public-interest assets. A ZEP may contain sectors with different conditions and non aedificandi areas, where construction is prohibited; those areas must not be equated with the entire zone.

The municipal exception

Properties classified or under classification as of municipal interest have no automatic general zone. Article 58 provides for special or provisional protection when territorial planning instruments are inadequate, following the competent municipal decision. Protection of the asset itself remains distinct from its surroundings.

Works and competences

Article 51, as amended by Decree-Law No. 10/2024, subjects certain licensed urban-development operations in national and public-interest protection zones to a binding prior opinion from Património Cultural, I.P. or the relevant CCDR. It provides exceptions, including certain interior works without impacts on the subsoil or significant features, specified exterior maintenance and operations identified in the order.

These exceptions concern the protection zone; they are not blanket permission to alter an individually classified asset. Read the act, affected features and applicable intervention regime with the competent services. In the autonomous regions, consult regional administration.

Finding the correct map

In the official search, open the ZEP act and map, check amendments and distinguish the asset boundary from its surroundings. A photograph, address or map pin cannot determine whether a property is included. For boundary doubts, consult the original map with the services. See the procedure and classification system for context.