It is in front of the main temple, it is a construction of lower architectural quality than the temples on its sides.
Its walls are of rustic parameters.
Dr. Bingham thought that the high priest in charge of the temples lived here.
You can see 04 niches on its sides, Bingham thinks that this site is a late building and will take a few months to build.
At the height of the ornate lintels, there are pegs of stones foreign to this area, they are made of pink granite typical of Ollantaytambo and were placed for purposes that are now known.