Knowing the cost to legalise a house in the Balearic Islands in order to comply with the regulations that allow the legalisation of houses on rural land in the Balearic Islands is key for owners to decide to do so.
The regulation supported by the consolidated Balearic Law 7/2024, allows the legalisation of those properties on rustic land that meet certain characteristics. In addition to making sure that your property is eligible for legalisation (as not all illegal properties are eligible for this privilege), it is important to calculate the costs correctly.
Don’t forget that the administration often does not know that your house is illegal. Once you start the process to legalize, you will be the one to inform them. Therefore, if you start the process, it is essential to finish it and to finish it, you need to know the costs.
Last legally reviewed: 21 September 2026
Official sources: Consolidated Balearic Law 7/2024 (BOE), particularly Additional Provision Seven.
However, one of the conditions for legalisation is a payment.
The legalisation is subject to the same taxes and fees applicable to new construction. In addition, the municipal financial contribution is calculated on the material execution cost: 10% when the application is submitted in the first year of the procedure, 12.5% in the second year and 15% in the third year.
For individuals subject to personal income tax, the contribution may be reduced by 50% where the average total taxable base for the previous four tax years does not exceed €33,000 for individual taxation or €52,800 for joint taxation. A 25% reduction may apply where that average does not exceed €52,800 or €84,480 respectively.
In order to calculate the costs to legalise a house in the Balearic, expenses in addition to the fine must be taken into account.
Cost to legalise a house in the Balearic Islands
.-Lawyer. It is recommended to have a legal advisor who is an expert in urban planning to check if your property falls within the parameters that allow legalisation. Otherwise you may incur costs that serve no purpose.
.-Architect. An architect’s technical project must be prepared and submitted to the relevant town hall.
Other factors and technical-project costs
Total cost is not fixed. It depends on the value of the construction, the year in which legalisation is requested and any applicable reduction based on the applicant’s economic circumstances.
The technical project may also require measures to reduce light pollution and improve energy and water efficiency, including changes to installations, renewable-energy systems, water tanks or appropriate purification systems.
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