Articles 45.5 and 148 of the Royal Decree 557/2011 of April 20 establish the process for obtaining a Long-Term Spanish Residence Permit as a foreign national. After maintaining a valid temporary residence permit for five years, an interested foreign national can opt for a long-term spanish residence permit. The long-term spanish residence permit allows a foreign national to work and reside in Spain in the same conditions as Spanish citizens as long as the foreign national complies with all requirements.
In any case, a temporary spanish residence permit or long-term Spanish residence permit eventually allows a foreign national to apply for and attain Spanish citizenship. To apply for naturalization, the foreign-national must complete the Spanish citizenship application and file it with the appropriate authorities.
If a foreign national with a residence permit like the long-term spanish residence permit chooses not to obtain Spanish citizenship, he or she will retain his or her original nationality.
This article is not considered as legal advice