The easiest way to arrive my house is to catch the metro from Airport and leave in Santa Apolónia ( the most important rail station is Lisbon). From there is very easy, is only to catch the bus number 712 and leave in Rua do Cardal à Graça (7 stops after Santa Apolónia). Or else leave in Martim Moniz metro station and catch the historic tram 28 (however is more expensive) and drop off in Largo Da Graça ( the main point you should achieve, one of the most important and historic squares of Lisbon) Afterwards is 2 minute walking distance to my house, just go down through the street Rua do Sol à Graça and you will reach immediately my street (Travessa Santo António à Graça).