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This paper investigates the feasibility of using buildings with heat pumps to support the integration of electric vehicles in electricity distribution networks. Behaviors of buildings with electric vehicles and heat pumps are modelled at a community scale. Based on the model, the on-off state of heat pumps along with buildings are characterized and coordinated with the charging behavior of electric vehicles from two aspects, namely coordination in a single house and coordination of multiple houses at a community scale. A community with 96 houses is used to test the performance of different coordination schemes. The results demonstrate that the new loads from electric vehicle charging would affect the electricity distribution network significantly, while coordination between houses could help mitigate this adverse impact Although the coordination requires new investment in updating IT infrastructure to support the coordination, it is worth to compare it with the cost for reinforcing distribution networks for electric vehicle integration.