Sustainable Building Renovation in Residential Buildings: Barriers and Potential Motivations in Norwegian Culture

Retrofit of existing housing increases the possibility of meeting Sustainable Development Goals. Improving quality of life, minimising energy consumption and increasing productivity in buildings process with the aim of affordable housing (social, environmental, and economic sustainability) set new demands for renovation amongst residential housing in Norway. Most studies to date emphasised on mitigation of CO2 emissions in building sector through building renovations. However, recent studies started evaluating why such renovation plans may not be considered by property owners. This study investigates potential barriers and motivations for Sustainable Building Renovations (SBR) from house-owners’ perspective and discusses the role of urban Facility Management (FM) in promoting SBR. Results from a questionnaire survey with 341 citizens in Trondheim city, Norway, confirm economic issues as the main barrier for SBR with respondents suggesting different forms of financial support to resolve these barriers. Social engagement of citizens with public/private partners and neighbours illustrates the collective motivation for SBR. This requires an intermediary role like urban FM engaging citizens to co-create their needs in urban areas with public/private sectors. The output of this study helps to promote urban FM engaging with SBR targets through renovation of neighbourhoods

Does urbanization lead to less energy use on road transport? Evidence from municipalities in Norway

The relationship between urbanization, energy use, and CO2 emissions has been extensively studied in recent years, however little attention paid to the differences in urban forms. Previous studies implicitly assume that the urban form is homogenous across different urban areas. Such an assumption is questionable as urban form can have many different facets. This paper investigates the effects of urbanization on the road transport energy use by considering different urban forms from a dataset of 386 Norwegian municipalities from 2006 to 2009. Using the Stochastic Impacts by Regression on Population, Affluence, and Technology (STIRPAT) model with an energy use identity equation, the main findings (1) confirm the well-established result that urban density has a negative and significant influence on road transport energy use, and (2) demonstrate that the effect of urbanization partly depends on the level of urban density. These results imply that additional increases in urbanization in dense areas yield greater decreases in road transport energy use per capita. Additional findings posit that (3) there is a non-linear (quadratic) relationship between road energy use per capita and urban population. This implies that an increase in total municipality population over a specific turning point can result in a decrease in road energy use per capita. However, (4) the ratio of urban residential buildings with private gardens has a negative and significant influence on road transport energy use. This implies that there may be a trade-off between compact and sprawl city development strategies, highlighting that sustainable energy use requires further investigation