Georeferencing of Land Plots in Spain: 10 Years of Law 13/2015 and Its Impact on the Property Market
In-depth analysis of the 10th anniversary of Spanish Law 13/2015: how the graphic coordination between Catastro and Land Registry has reshaped legal certainty in real estate, pending challenges, and key points for buyers, owners and lenders.
Ten years after it came into force, Spanish Law 13/2015 of 24 June — which reformed the Mortgage Act and the Cadastral Law — remains one of the deepest yet least understood transformations in Spanish real estate law. Its impact goes far beyond a technical update: it has redefined what a "land plot" actually is, how its existence is proved, and what risks anyone buying, inheriting or financing property in Spain takes on.
At Bufete Padilla, based in Torrevieja and serving the Costa Blanca for nearly fifty years, we deal daily with Article 199 Mortgage Law procedures, neighbour objections and surface discrepancies. The lesson is clear: georeferencing is no longer a surveyor's matter — it is a core component of any property legal audit.
1. Why Law 13/2015 was needed: the era of "paper plots"
For decades, Spain ran two parallel systems describing the same properties from very different angles:
- The Cadastre (Catastro), under the Tax Authority, with a fiscal and graphic vocation.
- The Land Registry (Registro de la Propiedad), under the Ministry of Justice, devoted to legal certainty and based on literal verbal descriptions of plots and boundaries.
The result was the so-called "paper plots": properties whose deed surface and boundaries did not match the physical reality on the ground. This structural mismatch fuelled decades of boundary litigation, especially in rural areas of the Levante, Andalusia and Galicia.
Law 13/2015 was designed as the long-overdue reform to force interoperability between both systems, leveraging modern technology and the European INSPIRE Directive.
2. The Georeferenced Graphic Representation (RGG): the new cornerstone
The central concept of the reform is the Georeferenced Graphic Representation (RGG), now embedded in the registry record in many scenarios. There are two ways to provide it:
- Cadastral Graphic Certificate (CCDG): the most common, downloaded from the Cadastre's electronic portal.
- Alternative Graphic Representation (RGA): prepared by a qualified technician (surveyor, geomatic engineer) when physical reality differs from the Cadastre.
The mandatory technical format is GML (Geography Markup Language), ensuring spatial data can be exchanged across administrations.