A system for coordinating room blinds and a building HVAC system, the system comprising: a building HVAC system; a building shading system comprising room blinds; means for determining a room operating mode of the building HVAC system; characterized in that the system further comprises means for determining a shading strategy configuration of the building shading system; and means for determining an optimal active shading strategy based on the room operating mode and the shading strategy configuration; means for choosing either a glare protection position or an energy efficient position as an automatic position for the blinds based on the input information about the active shading strategy, wherein the energy efficient position is an upper end position of the blinds, and in that the shading strategy configuration for the one or more shades of the building shading system is chosen from a plurality of different settings, the different settings comprising 1) maximum comfort, wherein the blinds are always positioned according glare protection aspects, 2) comfort orientated, wherein, if possible, the blinds are positioned according to energy savings aspects, but mostly the blinds are positioned according to glare protection aspects, 3) balanced, wherein the blinds are positioned according comfort and energy savings aspect in a well-balanced way, 4) energy savings oriented, wherein, if possible, the blinds are positioned according to glare protection aspects, but mostly the blinds are positioned according to energy savings aspects; and 5) maximum energy savings, wherein the blinds are always positioned according energy efficiency aspects. a building HVAC system; a building shading system comprising room blinds; means for determining a room operating mode of the building HVAC system; characterized in that the system further comprises means for determining a shading strategy configuration of the building shading system; and means for determining an optimal active shading strategy based on the room operating mode and the shading strategy configuration; means for choosing either a glare protection position or an energy efficient position as an automatic position for the blinds based on the input information about the active shading strategy, wherein the energy efficient position is an upper end position of the blinds, and in that the shading strategy configuration for the one or more shades of the building shading system is chosen from a plurality of different settings, the different settings comprising 1) maximum comfort, wherein the blinds are always positioned according glare protection aspects, 2) comfort orientated, wherein, if possible, the blinds are positioned according to energy savings aspects, but mostly the blinds are positioned according to glare protection aspects, 3) balanced, wherein the blinds are positioned according comfort and energy savings aspect in a well-balanced way, 4) energy savings oriented, wherein, if possible, the blinds are positioned according to glare protection aspects, but mostly the blinds are positioned according to energy savings aspects; and 5) maximum energy savings, wherein the blinds are always positioned according energy efficiency aspects. 1) maximum comfort, wherein the blinds are always positioned according glare protection aspects, 2) comfort orientated, wherein, if possible, the blinds are positioned according to energy savings aspects, but mostly the blinds are positioned according to glare protection aspects, 3) balanced, wherein the blinds are positioned according comfort and energy savings aspect in a well-balanced way, 4) energy savings oriented, wherein, if possible, the blinds are positioned according to glare protection aspects, but mostly the blinds are positioned according to energy savings aspects; and 5) maximum energy savings, wherein the blinds are always positioned according energy efficiency aspects.