Yes, it is completely legal. Notarial proceedings by videoconference are expressly permitted in Spain by:
- The Law 11/2023, of May 8, on the digitization of notarial and registry proceedings and communication acts
- The previous modifications to the Notarial Law and its Regulations
The notary must:
- Verify the identity of the grantor by viewing the DNI/NIE via camera
- Read the document in full
- Ensure that the grantor understands the content and gives their consent freely
- Attest to the signature in real time
The resulting document has exactly the same validity as one granted in person: it is a public deed with all its legal effects.