Lately, there’s been more and more talk in online forums about island living. Sun, sand, a slower pace of life… who wouldn’t dream of that? I’ve noticed that many people, especially non-EU passport holders, are a bit unclear about the requirements for buying property on popular islands like Mallorca and Tenerife. Based on what I’ve learned about buying property on Spanish islands, I’ve put together this guide to help anyone interested.
The Core Prerequisite: Identity & Documents
First things first, no matter your nationality, the initial step to buying property in Spain is to apply for a Foreigner’s Identity Number, or NIE (Número de Identificación de Extranjero). This number is essential, acting as your identification for all economic activities in the country. For EU citizens, once you have your NIE, the property buying process is nearly identical to that for Spanish locals. However, for us non-EU citizens, things can be a bit more complex, especially in the island territories.
The Special Step: Military Permit
This is a crucial detail that non-EU buyers often overlook when purchasing property on the islands! Due to a long-standing Spanish law concerning national defense, citizens from non-EU countries who wish to buy rustic land in certain ‘areas of strategic interest’ must first apply for a military permit from the Ministry of Defence. This regulation applies to almost the entire Balearic and Canary Islands, as well as Ceuta, Melilla, and certain border regions. Although the approval process is now largely a formality, this step is mandatory—otherwise, you won’t be able to register the property title! It typically takes 2 to 6 months to get approved, so planning ahead is essential.

The table below provides a simple overview of which areas may require this permit for buying property on Spanish islands:
| Island Group | Military Permit Required | Applicable Land Type |
| Balearic Islands | Yes | Mainly for rustic land |
| Canary Islands | Yes | Mainly for rustic land |
| Spanish Mainland Border Areas | Yes | Rustic land in some areas |
So, when it comes to buying a home on a Spanish island, the general process looks like this: Hire a reliable lawyer -> Apply for your NIE -> Find a property and sign a reservation contract -> Have the lawyer apply for the military permit -> Once the permit is granted, sign the final purchase contract -> Pay the relevant taxes and register the property at the Land Registry. Finding a good lawyer is absolutely crucial; they will handle all the complex paperwork for you.
Buying a home on a Spanish island is not an unattainable dream; it just involves one extra step compared to buying on the mainland: the “military permit.” As long as you understand the requirements in advance and plan your timeline accordingly, owning your own island home is entirely possible. Of course, if you are buying an apartment on urban land (suelo urbano), this permit is usually not required, but it’s always best to have your lawyer confirm the specifics for your case. Feel free to share your own experiences or add more information in the comments below! Wishing you all the best in achieving your island dream!