St George’s is on the corner of Calle Núñez de Balboa and Calle Hermosilla in the barrio Salamanca district of Madrid.
By car: There is on-street parking around the church which is free on Sundays. There are underground car parks on Calle Velázquez (3 minute walk) and Calle Hermosilla (5 minute walk). For those worried about the new 2019 traffic emissions restrictions please see the map below. St. George´s is outside this area and so it should be easy to arrive at Church without passing through the protected zone (and if you live there you will know all about this in any case!)
That said, don’t forget you will need a “pegatina”, obtainable from Post offices (“Correos”), if you have a diesel car registered since 2006 or a petrol car registered since 2000 and want to enter Madrid within the M-30. If you have an older car you cannot get a sticker but you can still drive around Madrid but only outside the protected zone. More information here (in Spanish):
Please also be aware that fairly frequently the centre of Madrid is used for sporting events that inevitably restrict access to St George’s on a Sunday.
Fortunately there is ample notice of these (in Spanish) on:
http://www.carreraspopulares.com/calendario_carreras/madrid
By bus: Lines 21 and 53 pass along Calle Goya (nearest stop: Goya-Velázquez or Goya-Príncipe de Vergara, 3 minutes walk). Lines 1, 9, 19, 51 & 74 go up Calle Velázquez (2 minute walk) and down Calle Serrano (6 minute walk). Lines 29 and 52 travel along Calle Príncipe de Vergara (4 minute walk).
By metro: The nearest metro station is Velázquez on Line 4 (Brown), 1 minute walk . Consult the metro map here.
By train: The nearest Cercanías railway station is Recoletos (10 minute walk) on lines C1, C2, C7 and C10. Consult the rail map here.
Please note there is no connection between Recoletos and Nuevos Ministerios until at least November 2019. A replacement bus service is available.