The institute's offices are located in the new wing of the building, on the ground floor and 1st floor (entrance from the courtyard):
Main office – Room 209
Scientific Secretary – Room 121
Repository of Bioarchaeological Material – Kalpaka bulvāris 4 (basement); Lielvārdes iela 24, Room 314, Rīga, LV-1006.
Dendrochronological Laboratory – Room 123
Repository of Ethnographic Material – Rūpniecības iela 10, Room 114, Rīga LV-1010
Repository of Archaeological Material – Rūpniecības iela 10, Rooms 110, 110A, Rīga LV-1010