In terms of political structure, it consists of the invested Mayor of Barcelona, currently Jaume Collboni, the Government Commission, and an elected 41-member deliberative Plenary (Consell Municipal) with scrutiny powers.

[3] The opening session in which the Mayor is invested is traditionally held at the Saló de Cent.

The plenary meetings (Ple) are held at the "Carles Pi i Sunyer" Hall.

It is formed by the municipal councillors, elected through closed party list proportional representation.

[4] A list of local elections (electing the councillors of the Plenary) since the restoration of the democratic system is presented as follows: A part of the management is conducted by entities wholly or partially owned by the Ajuntament:[5]