The cost of buying an apartment in Lisbon will vary depending on a number of factors, including the size and location of the apartment. In general, however, you can expect to pay around 5000-8000 a square meter for a one-bedroom apartment in the city center. If you are looking for a more affordable option, you can try searching for apartments in the suburbs of Lisbon. Prices here are typically lower, but you will have to commute into the city for work or school. Additionally, keep in mind that there is often a security deposit required when renting an apartment in Portugal. This is typically equal to one/three month’s rent, and it is used to cover damages or missed rent payments. With all of this in mind, you should have a good idea of what to expect when searching for an apartment in Lisbon.