Acceso a la Sede Electrónica del Catastro
  • Secretaría de Estado de Hacienda 
  • Dirección General del Catastro 


SEC reduces the number of visits to cadastre offices by 20 % and saves 25.000 working days and attention time.

The Spanish cadastre is an administrative register with a fiscal origin, created as a data bank to be accessed both by Public Administrations (national, regional, local) and citizens. As an inventory of real estate, it contains physical information (surfaces, location, use, shape, boundaries, cartographic representation, crops and forest use, type and quality of constructions, etc.), legal information (identification of holders or owners: name, national identification number, address, etc.) and economic information (cadastral values of land and buildings, valuation criteria). This cadastral bank includes detailed information of more than 32 million urban properties, more than 40 million rural properties and more than 27 million cadastral owners.

The Cadatral Electronic Site started up in May 2003 with the main goal of providing other Administrations with information which, up to that moment, citizens were requested to present in the suitable office after collecting it themselves from the cadastral office. At the moment, the Cadatral Electronic Site provides the following services:

It is important to emphasize that all these services are provided at no cost, and have a universal nature. Nevertheless, as both the European Union and Spanish laws consider part of the cadastral data as protected data, access to these protected data of real estate is legally accessible only by certain institutions and administrations and, of course, by the owners of each particular property. Therefore the identification of the applicants is a most important subject . For that reason, involved administrations have to be registered off-line in the application and, once registered, they are obliged to use X509 digital certificates in order to authenticate the users. Owners of a particular property can access protected data of their own properties by authenticating themselves with a X509 digital certificate.

The General Directorate of the Cadastre has reached agreements with different Certification Authorities to admit the X509 certificates issued by them as mechanisms of authentication in the application.

Description of services

Basically, two kind of services are provided:

Services of request and certification of cadastral data:

They allow locating a specific property in three different ways:

Once located or selected the property, the information provided by the program is as follows:

It is important to emphasize that any particular citizen who identifies by a X509 certificate issued by one of the CA's recognized by the General Directorate of the Cadastre, can view all the accesses made on their properties by all administrations and institutions as registered users in the SEC.

Massive exchange of information Services

Cadastre exchanges a huge amount of information with collaborating agents in order to coordinate the contents of their respective data bases. These SEC services allow the exchange of data files between collaborating agents and the Cadastre via Internet. The users have the following competence:

Project values and results

The basic functions of the cadastral Information are the following:

When gathering all this information in an accessible Internet service, always taking into account security and data protecting policies the following values are achieved:

The main results of the Cadatral Electronic Site at October 2006 are the following:

The SEC is adapted to the EU Directives

The Cadatral Electronic Site is fully adapted to the 2003//98/EC Directive, on the re-use of public sector information. Presently, it even includes numerous elements which will be regulated in the Proposal for a Directive establishing an infrastructure for spatial information in the Community (INSPIRE).


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