This is an absolute hidden treat, a beautifully compact home with lots of minimalist space saving ideas (the luggage storage under the floor is genius). The space gives you a quiet calm base whist still being conveniently located in a cool neighborhood very close to the metro. The terrace views are amazing despite it being too hot to sit out during the day. Only downside was the list was broken when I visited and 5+ flights of stairs in the heat was not fun. Although it didn't distract from the charm of the space.
Thoroughly recommend this cute small home for anyone who is passing through Madrid.