From the airport to the house it took about 20 minutes by taxi (the cost is around 10 euros). The area of the city is in my opinion convenient, with a bus stop on the way that takes you directly to the train and metro station. To reach the Alfama district by walking it takes 20-30 minutes. Reaching the house on the third floor is complicated because the stairs are narrow, it's an old building, but once inside you are into a nice apartment, clean and with everything you need. Outside, on the balcony, there's a breathtaking view over the city. The owner is very nice, she gave us all the advice to have a really nice holiday.