Recently, district heating networks are combined with building side distributed heat pumps and this configuration provides better energy efficiency of the network. This configuration allows to supply both heat and cold using the two pipe network configuration. This presentation will present the results of a study with a configuration of circulating low temperature water in the network and having building side heat pump to lift/drop the temperature to the desired level and compares it with the traditional district heating networks. These networks are designed for Glasgow City Centre using Comsof Heat, an automated GIS based district heating planning and cost calculation tool.