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Building permits in Madrid: what you need and how long they take

Responsible declaration, major or minor works permit: which one fits your renovation, what documents are required and realistic timelines.

26 September 20261 min readBy Fanworking team

Types of procedure

Responsible declaration: for most interior renovations without structural changes.
Major works permit: if the structure or façade is altered, or the use changes.

A responsible declaration lets you start almost immediately; a major works permit can take 3 to 6 months. We handle it from start to finish.

Responsible declaration, major or minor works permit: which one fits your renovation, what documents are required and realistic timelines.

Planning rules, ceiling height, light and ventilation: how to know whether your unit can become a home and what steps to follow.

Buying, renovating and letting a 70 m² flat in Madrid: total investment, expected rent and net yield.