The goal of the research study was to draw public attention to the deterioration defects characteristic to standard buildings, to their types and volume. Renovation of standard multi-storey buildings is unilaterally related only to energy efficiency improvement measures. It is much more important to prevent deterioration defects in the utility systems of the structural units of the buildings and their utilities systems, to retain the use-value of the buildings and renew their service life to a certain extent. In order to achieve the goal of the research, six major standard groups of standard buildings were selected in various neighborhoods of Riga, according to post-war construction stages: 1) Standard buildings of the first post-war construction stage, 316th/318th and 464th series buildings in Jugla; 2) Standard buildings of the second post-war construction stage, 467th series five-storey and 602nd series buildings in Purvciems; 3) Standard buildings of the second post-war construction stage, "Lithuanian project" and 467th series nine-storey buildings in Purvciems; 4) Standard buildings of the third post-war construction stage, 602nd series buildings in Imanta and Ziepniekkalns. For each building type, a technical inspection report was drawn up, data on heat consumption for the period from 2010 to 2015 was summarized, calculations of the average and specific heat consumption were conducted, in accordance with laws and regulations. For each building type in a certain residential area, cost estimates for the renovation of external structural elements and energy efficiency increase measures were drawn up. In apartments of three renovated and non-renovated standard buildings of the 316th, 464th and 602nd series, air permeability measurements were conducted in accordance with the requirements of the standard LVS EN 13829:2013 L.