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What documentation you need to sell your flat without mistakes

Selling a property in Spain may seem straightforward, but in reality it requires meeting several legal, technical and fiscal requirements. One of the most common mistakes by private sellers is not having the necessary documentation to sell a flat, which can delay the transaction, generate unexpected costs or even make it unfeasible.

What documentation you need to sell your flat without mistakes

Selling a property in Spain may seem straightforward, but in reality it requires meeting several legal, technical and fiscal requirements. One of the most common mistakes by private sellers is not having the necessary documentation to sell a flat, which can delay the transaction, generate unexpected costs or even make it unfeasible.

In this article we explain clearly and step by step which documents you should have ready to sell your flat without mistakes, especially if you are in the Comunidad Valenciana or Murcia, where regional particularities can also have an influence.


1. Title deed or purchase deed

This document proves that you are the lawful owner of the property. It is essential for any sale transaction. If lost, you can request a copy from the corresponding Property Registry.


2. Updated nota simple (registry summary)

The nota simple registral is a document that summarizes the legal status of the property: ownership, encumbrances, mortgages, liens, etc. It can be requested online or in person at the Registry. It is key for the buyer and the notary to know the legal situation of the flat.


3. Energy Performance Certificate

Since 2013, this certificate is mandatory to sell any dwelling in Spain. It assesses the property's energy consumption and emissions. It must be issued by an authorised technician. If you sell your property through Mayrasa, we help you arrange it quickly with our real estate advisory service.


4. Latest receipts for IBI and utilities

You must present the latest paid IBI receipt (Property Tax) as well as up-to-date invoices for water, electricity and gas. This proves the property is current on payments and has no outstanding debts.

In addition, if the property belongs to a homeowners' association, it is necessary to provide a certificate of being up to date with community payments, issued by the administrator.


5. Certificate of outstanding mortgage debt or mortgage cancellation

If the flat has an outstanding mortgage, you must present a certificate from the bank showing the outstanding debt. If it has been repaid, it is also necessary to have the registered deed of cancellation. This step is crucial if you want to avoid notary errors or problems with the buyer.


6. Certificate of habitability (if required)

Although it is no longer compulsory throughout Spain, in some regions such as Catalonia it is still required. In the Comunidad Valenciana it is not essential for the sale, but it may be requested to contract utilities or carry out works. Consult your real estate advisor to confirm whether it applies in your case.


7. Plans or renovation project (optional, but recommended)

If you have carried out significant renovations or reconfigurations, having updated plans or a certified project can facilitate the sale and increase perceived value. It is also useful for buyers interested in future remodelling.


8. Valid identity document

For both Spaniards and resident foreigners, it is essential to present a valid DNI, NIE or passport. If there are multiple owners, all must sign the purchase deed or grant notarial power of attorney to a representative.


9. Deposit (arras) or reservation agreement (to start the sales process)

This contract establishes the commitment between buyer and seller, setting the basic conditions of the transaction. Although it is not compulsory by law, it is highly recommended to avoid misunderstandings and formalise the intention to buy.

If you do not know how to draft it correctly, at Mayrasa we take care of all the legal documentation so you can sell securely.


10. Municipal capital gains tax declaration (plusvalía municipal)

Another key document is the calculation of the plusvalía municipal (Tax on the Increase in Value of Urban Land). The seller must submit it to the relevant town hall and pay the tax, unless agreed otherwise. In some cities it can be done online, but it is advisable to have it processed before signing.


11. Proof of payment of community fees and special assessments

It is important not only to be up to date with regular community fees, but also with any recently approved extraordinary assessments. Providing proof of their payment builds buyer confidence and avoids claims after the sale.


Advantages of professional advisory

Selling your property with the help of professionals such as those at Mayrasa guarantees:

  • Legal review of all documentation.
  • Assistance with Registry and notary procedures.
  • Processing of the energy certificate.
  • Access to home staging and marketing services to improve the presentation of the flat.
  • Total security throughout the process.

Also, if you need it, we can help you with valuation of your property to set a competitive and attractive price from the outset.


Conclusion

Selling a flat without mistakes requires having all the correct, up-to-date and legally valid documentation. From the title deed to the energy certificate, through the IBI, the plusvalía or the deposit agreement, each document plays an essential role in the process.

If you are considering selling your flat in Torrevieja or another town on the Costa Blanca, don’t let bureaucracy trip you up. Contact us and let us help you sell safely, quickly and with the best advice.