Mértola PDM: zoning, constraints and what may be built

Not automatically. New housing on rustic land is as a rule tightly restricted and, in agricultural or forest classes, often prohibited — unless the Mértola PDM makes an exception (rural settlement, a house tied to a farm, rural tourism, reconstruction of a pre-existence). RAN, REN, protected areas, flood zones or rural fire hazard can still block what the PDM would admit. A listing that says “construction is possible” does not replace the map or a PIP at the Câmara Municipal.

The operativity shown here comes from the ingested legal instrument, not from the status of a revision procedure. Always confirm in the official source.

These pages describe the concelho. The caderneta predial is not enough: «prédio rústico» in the tax register is not «solo rústico» in the PDM. Use Explore with the exact point, cross it with the regulation and, for a concrete proposal, file a PIP with the Câmara Municipal of Mértola.

No. Verified municipal deadlines and fees live on the Observatório fees page.

Use Watch a plot to follow changes around a point. Foral notifies when relevant signals appear in official sources.

It depends on the plot's land class on the zoning map and on the rules in the Mértola PDM regulation. On urban land, housing and other uses are admitted within the class parameters (area, height, setbacks, indices). On rustic land the use is more restricted and new housing is often conditional or prohibited. Only reading the specific plot on the map, cross-checked with the regulation and the constraints, confirms what is possible.

Building capacity — floor-area and site-coverage indices, height and setbacks — is set by the PDM regulation for the plot's land class. These pages show the per-class parameters where confirmed; for a specific plot those values are confirmed on the map and in the regulation and, formally, through a pedido de informação prévia (PIP) to the Mértola Câmara.

Urban land is meant for urbanisation and building; rustic land protects agricultural, forest, natural or risk uses, and building is exceptional. A plot may be either in the PDM, regardless of what the caderneta predial says. The concrete class is read from the zoning map, not the tax register.

The constraints with most weight are the National Agricultural Reserve (RAN), the National Ecological Reserve (REN), Natura 2000 areas, flood zones and rural fire hazard. This page shows the percentage of each over Mértola where cartography allows — otherwise it omits the figure rather than inventing one.

The PIP is filed with the Câmara Municipal of Mértola, as a rule at the urbanism desk or the municipal portal, identifying the property and describing the proposal. The reply states whether the works are viable and under which parameters. It is the formal way to confirm what can be built before committing to a deal or a project.

A building with proven legal existence may, depending on the Mértola PDM, be rehabilitated or reconstructed under conditions sometimes more accessible than a wholly new build. Legalising works without a permit depends on the regulation and the applicable constraints. Always confirm with the Câmara, preferably through a PIP.

Reclassifying rustic land as urban is a decision of the Câmara Municipal within the plan, subject to strict RJIGT conditions (since 2025, as a rule contiguity with urban land and an affordable or public-housing component). It is not a landowner's right, nor is it obtained through an individual building request.

This page brings together the zoning map — or the municipal boundary, where land-class cartography has not yet been ingested —, the constraints and the Mértola PDM regulation, from official sources. For the original document, follow the link to the Diário da República (DRE).