I live in Madrid, in a 90m2 flat. I like it very much because it's very good communicated. it's near the underground, bus, there are a lot parks which you can take physical exercise, to walk with your dog, also it's near shopping center, hospital, etc.
My flat has three rooms, two bathroms, a kitchen, a living-room. In winter is very warm and in summer is cold. It's not very big, but it's very good distributed.
The builing has five foor. I live in second floor. The construction is very normal.
In Madrid is very typical to find this kind of houses.