The "Survey among residents of multi-apartment buildings in Yerevan" was conducted among the residents of 4 multi-apartment buildings (MABs) in Yerevan with the special focus on the impact of socio-economic status of household on its behavior related to the apartment heating and its readiness to cooperate with “De-risking and Scaling-up Investment in Energy Efficient Building Retrofits” Project, which will serve as a basis for accomplishing/adjusting the criteria for vulnerability assessment of households.