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How to check if a plot is buildable before buying

On the Costa del Sol, plots are sold every year that are not buildable, or that are buildable under very different conditions from what the seller implies. Prior planning verification is not optional: it is the most important step before committing any capital.

Step 1: Identify the planning classification of the land

The first document to consult is the PGOU (General Urban Planning Ordinance) of the municipality, now referred to in many Andalusian councils as PGOM (General Municipal Planning Ordinance) following the approval of the LISTA. This document establishes the basic classification of land in the municipal area:

• Consolidated urban land: plots with all existing urban services (road access, water, drainage, electricity). In principle buildable directly, provided they comply with the parameters for the zone.
• Non-consolidated urban land: land that forms part of the urban fabric but requires a prior urbanisation process (generally a Special Plan or re-parcellation). Not directly buildable.
• Developable land: earmarked for future development via a Partial Plan. May take years to become buildable, and many sectors are never developed.
• Non-developable (rural) land: generally not buildable for residential use. Exceptions exist for agricultural activities, rural tourism or infrastructure, but under very strict conditions.

The classification can be checked at the relevant council's electronic offices or in the planning viewer of the Junta de Andalucía's Development Department (SIGPAC and SiGViAL).

Step 2: Obtain the urban planning certificate

The urban planning certificate (cédula urbanística or informe urbanístico de parcela) is the official document issued by the council describing the buildability conditions for a specific plot: classification, designation, permitted use, maximum site coverage, height limit, net buildability, setbacks, and any special restrictions that may affect the plot.

Requesting one costs between €100 and €300 depending on the municipality and takes between one and three months to obtain. It is the most reliable document for knowing exactly what can be built, and is the basis on which the architect can calculate the real development potential of the plot.

Step 3: Check the Land Registry certificate

The Land Registry certificate confirms who the owner is, what the registered area is, what charges encumber the property (mortgages, liens, servitudes, rights of way) and whether there are precautionary annotations that could affect transfer. It costs less than €10 and can be obtained online through the Spanish Land Registrars' portal.

Note: the area shown in the Land Registry does not always match that of the cadastre or the physical reality of the plot. When there are discrepancies, the reason must be investigated before signing.

Step 4: Verify the cadastral reference and boundaries

The cadastral reference identifies the plot in the Land Register (catastro.meh.es). The query is free and shows the cadastral area, boundaries, mapping and cadastral value. It is a quick first filter, but the Cadastre has no legal value regarding ownership or planning classification.

If the plot borders a watercourse, drovers' road, forest area or the coast, it is essential to check whether there are public domain encumbrances that reduce the actual buildable area.

Step 5: Identify servitudes, protected zones and public domain encumbrances

Beyond municipal planning, there are supra-municipal encumbrances that can restrict or prevent construction:

• Hydraulic Public Domain (DPH): the protection zones of rivers, streams and reservoirs (generally 100 metres of policing zone) are regulated by the Confederación Hidrográfica del Sur. A plot crossed by a watercourse — even a dry one — may face severe restrictions.
• Coastal protection zone: the Coastal Act establishes transit (6 metres from the maritime-terrestrial public domain line) and protection (100 metres in urban land, 500 metres in rural land) servitudes. Plots within these zones face significant restrictions.
• RENPA (Andalusia's Protected Natural Areas Network): areas surrounding natural parks and reserves impose land use restrictions that may affect neighbouring plots.
• Drovers' roads: ancient livestock routes (cañadas, cordeles, veredas) are public domain. If a drovers' road crosses the plot — even if not physically marked — nothing can be built on it.

The trap of the rural plot with existing construction

In the Axarquía, the Serranía de Ronda and other interior areas of Málaga province there are thousands of rural plots with cortijos, farmhouses or small agricultural buildings. Many are marketed with the note that they "have a house" that can be renovated, which is technically true but with important caveats.

On non-developable land, Andalusian regulations (LISTA) permit the rehabilitation of existing buildings, but generally do not allow demolition and reconstruction. If the building is in a state of structural ruin, the right to maintain it may have expired. And in most categories of protected rural land, the building cannot be extended beyond the existing volume.

Before buying one of these plots with the intention of building a new home or rehabilitating the existing one, it is essential to verify: the registered status of the building, whether it has a permit or is out-of-regulation construction, and exactly what the specific rural land category regulations permit.

Step 6: Check urban services

A plot may be classified as urban land but lack a paved road access, potable water supply network, drainage or electrical supply. In such cases, the connection or urbanisation costs fall to the developer, and these can be very high, particularly in dispersed areas.

At Santos Arquitectos we analyse the real potential of plots before clients acquire them. A pre-purchase consultation of a few hours can clearly define what can be built, under what conditions and at what estimated cost. Contact us before you sign.