The House of Lungbarrow was one of the Prydonian Houses and the family home of the Doctor. It was located in the southern mountain range on Gallifrey, overlooking the Cadonflood River. The Doctor returned there in his seventh incarnation.
It had a barn that the First Doctor often slept in as a child to hide his crying. When the War Doctor later returned to this barn on the last day of the Last Great Time War to activate The Moment, it was surrounded by a desert and there was no sign of any other buildings. (TV: Listen)