Differences between the certificate of occupancy and the responsible declaration in urban planning and building
 
 

06 / Dec

The certificate of occupancy and the responsible declaration are two legal instruments used in the real estate and urban planning sector in Spain. Although they are sometimes mentioned together, they have clearly different logics, purposes, and legal frameworks.

This article explains their main differences, regulatory framework, and the importance of considering the specific regulations applicable in each Autonomous Community and City Council.

Certificate of occupancy: nature and procedure

The certificate of occupancy (la cédula de habitabilidad) is generally an administrative act, usually issued by technical bodies or services of the Autonomous Community, not by municipalities. It typically requires a prior technical inspection of the property to verify compliance with habitability, urban, and regulatory requirements. For first occupancy procedures, the developer must submit technical documentation such as:

  • Final work certificate;
  • Municipal building or first use license, as appropriate;
  • Additional certificates and reports (accessibility, energy efficiency, etc.).

Issuance or renewal may be subject to a fee. In case of denial, the decision must be justified, and an appeal can be made to the competent autonomous body.

Effects of administrative silence

Unlike the responsible declaration, the certificate may be subject to deadlines and effects of administrative silence set by autonomous regulations. Usual examples:

  • Valencian Community: maximum period of 20 days; positive silence unless otherwise regulated or reported;
  • Region of Murcia: maximum period of one month; positive silence unless otherwise provided.

It is essential to consult the municipal ordinance and applicable autonomous regulations, as effects may vary (positive silence, negative silence, or no effect).

The certificate is usually required to prove habitability conditions for first and subsequent occupations, for transferring the property (sale, rental, assignment), or for contracting basic supplies. It must be renewed after expiration, usually every 10 years, or when renovations affecting habitability are carried out.

Responsible declaration: concept and effects

The responsible declaration (la declaración responsable en el ámbito urbanístico y de la edificación) is an administrative simplification instrument provided for in Law 39/2015 and various sectoral regulations. It allows a natural or legal person to declare, under their responsibility, that they meet the requirements to carry out an act, activity, or occupation, committing to maintain such compliance and to have the supporting documentation.

Its effectiveness is immediate from its submission to the Administration, without prior resolution. The interested party can start the occupation, activity, or work from that moment, always subject to subsequent verification and inspection by the Administration.

This mechanism is used, among other cases, for:

  • Second or subsequent occupation of homes or premises;
  • Minor works and certain renovations;
  • Changes of use;
  • Changes of ownership.

The content and required documentation vary significantly between municipalities and Autonomous Communities. In many territories, the responsible declaration replaces the certificate of occupancy or the first occupancy license, while in others they coexist or only one is required.

Verification and responsibility

If the Administration detects essential inaccuracies, it may order the suspention, revocation, or cessation of the activity, as well as demand administrative, civil, or criminal responsibilities. It cannot be required simultaneously with a license or prior communication for the same act, unless the sectoral regime expressly provides for it in successive procedures.

Essential differences between certificate of occupancy and responsible declaration:

  1. Nature of administrative control

The certificate of occupancy requires prior control by the Administration, which verifies the conditions of the property before authorizing occupancy, whereas the responsible declaration requires subsequent control, and the interested party can start the activity upon submission, without prior resolution.

  1. Administrative silence regime

After submitting the responsible declaration, there is no administrative silence, because its effectiveness is immediate by law. On the other hand, in the application for the certificate of occupancy, administrative silence may exist, generally positive (i.e., the application is accepted due to the Administration’s silence), according to applicable autonomous regulations. The specific regime of each Autonomous Community must always be indicated.

  1. Purpose

The certificate certifies that the dwelling meets minimum health, safety, and habitability conditions. It is usually necessary to contract supplies or transfer the property. On the other hand, the responsible declaration enables the initiation of occupancy, work, or activity without prior license, facilitating administrative streamlining.

Conclusion

In other words, the certificate of occupancy and the responsible declaration for occupancy are two completely different documents, although in practice the term “certificate” is often used indiscriminately. The first is what we would call a true habitability license, while the second is a declaration that it is habitable, which can be reviewed later by the city council if they decide, but which has effects from its submission.

 

Selena Escandell