The development and implementation of the effective policies for promoting energy efficiency in household sector has been an emerging target of the EU. A recent analysis of Latvian households included in smart metering pilot shows that type of housing has been found as the most statistically significant variable that impact electricity savings. This study deals with the statistical analysis of residential buildings to find simplified correlations for the assessment of factors affecting changes in electricity consumption, in particular, taking into account selected building characteristics, households’ personal and socio-economical, socio-demographical characteristics. Multiple linear regression analysis is used to present and compare the results between two groups – target group with smart meters and control group without smart meters by differentiating among typical heating types as determined in a field study.