In 2015, the United Nations (UN) adopted the 2030 agenda for Sustainable Development, which set out 17 Sustainable Development Goals (SDGs), 169 targets and 231 unique indicators as a significant initiative towards socio-economic development. The SDGs provide the construction industry with a new lens through which global needs and desires can be translated into business solutions. This paper explores the role of the construction industry in achieving the 2030 Sustainable Development Goals. The paper uses an explanatory sequential design with an initial quantitative instrument phase, followed by a qualitative data collection phase. Following a comparative review of the literature on the 17 SDGs, a questionnaire was designed and administered among 130 respondents, and 105 responses were received. These data were then validated through semi-structured interviews with 16 sustainable construction experts. Data obtained from the semi-structured validation interviews were analysed through side-by-side comparisons of the qualitative data with the quantitative data. The findings show that the construction industry has a critical role in achieving almost all the 17 SDGs. The roles were, however, prevalent in 10 key SDGs, namely: sustainable cities and communities (SDG 11); climate action (SDG 13); clean water and sanitation (SDG 6); responsible consumption and production (SDG 12); industry, innovation and infrastructure (SDG 9); life on land (biodiversity) (SDG 15); gender equality (SDG 5); good health and well-being (SDG 3); affordable and clean energy (SDG 7); decent work and economic growth (SDG 8). The study confirmed the role played by the construction industry in achieving these SDGs. The findings from this study provide further insights into the ever-increasing state-of-the-art regarding the construction industry’s role in achieving Sustainable Development Goals.

This study examines the perception of professionals in the Ghanaian construction industry regarding the obstacles to green building project financing. Following an extensive critical comparative review of literature resulting in the identification of ten potential obstacles, a cross-sectional survey was conducted among 520 construction industry professionals. Data obtained from the survey were analysed using both descriptive and inferential statistics. The findings from the study revealed that split incentives, risk related barriers, capital expenditure, lack of incentives, and initial capital cost are the key obstacles that hinder green building project financing. The findings further revealed significant differences in the views of the professionals regarding four obstacles to green building project financing. From the discussion, it was realised that for some of the identified obstacles, the differences resulted from the fact that the different professionals have different interests in green building projects, and those interests depict the kind of risks they are exposed to. The value of this paper is to help built environment professionals to understand these obstacles and find a better way of turning these challenges into opportunities for the construction industry.

PurposeThe majority of the literature on green buildings in Ghana focuses on environmental benefits, innovative designs, construction technologies and project management techniques. However, little is known about how such facilities are financed. This issue creates potential knowledge gaps, one of which this study aims to address. This study examines the key drivers for green building project financing in Ghana.Design/methodology/approachThe study uses an explanatory sequential design with an initial quantitative instrument phase, followed by a qualitative data collection phase. An extensive critical comparative review of the literature resulted in the identification of eight potential drivers. One hundred and twenty-seven questionnaire responses based upon these drivers from the Ghanaian construction industry were received. Data were coded with SPSS v22, analysed descriptively (mean, standard deviation and standard error) and via inferential analysis (One Way ANOVA and One-Sample t-Test). These data were then validated through semi-structured interviews with ten industry professionals within the Ghana Green Building Council. Data obtained from the semi-structured validation interviews were analysed through the side-by-side comparison of the qualitative data with the quantitative data.FindingsThough all eight drivers are important, the five key drivers for the Ghanian construction industry were identified as, in order of importance, “high return on investment”, “emerging business opportunity”, “ethical investment”, “conservation of resources” and “mandatory regulations, standards, and policies”. The interviewees agreed to and confirmed the importance of these identified drivers for green building project financing from validating the survey's key findings.Research limitations/implicationsKey limitations of this study are the restrictions regarding the geographical location of the collected data (i.e. Kumasi and Accra); timing of the study and sample size (i.e. the COVID-19 pandemic making it difficult to obtain adequate data).Practical implicationsThough this study was conducted in Ghana, its implications could be useful to researchers, policymakers, stakeholders and practitioners in wider sub-Saharan Africa. For instance, financial institutions can invest in green buildings to expand their green construction and mortgage finance products to build higher value and lower risk portfolios. The findings from this study can provide investors with the enhanced certainty needed to help guide and inform their investment decisions, i.e. what to invest in, and when, by how much and how a scheme being “green” may influence their rate of return. Also, for building developers, it will give them a clearer understanding of the business case for green buildings and how to differentiate themselves in the market to grow their businesses.Originality/valueThis study's findings provide insights into an under-investigated topic in Ghana and offer new and additional information and insights to the current state-of-the-art on the factors that drive green building project financing.

PurposeThe increased awareness of global environmental threats like climate change has created an upsurge of interest in low embodied carbon building materials for green building delivery. Though the literature advocates for the use of hemp-based building materials, there is no evidence of studies to explore its potential use in Ghana. Therefore, this study explores the potential factors that limit the adoption of hemp as an alternative sustainable material for green building delivery in Ghana.Design/methodology/approachA structured questionnaire was used to solicit the views of built environment professionals operating in construction, consulting and developer firms. The questions were developed through a comparative review of the related literature and complemented with a pilot review. Data were analysed via descriptive and inferential statistics.FindingsOn the average, the majority of the respondents showed a moderate level of awareness of hemp and its related uses in the construction industry. Also, certain key factors like the perceived association of hemp with marijuana, lack of expertise in the production of hemp-related building materials, farmers not getting the needed clearance for the cultivation of hemp, lack of legislation by the government in the legalisation of hemp and the inadequate knowledge of consumers on the benefits of hemp-based building materials were identified as potential limitations to the adoption of hemp as an alternative sustainable material for green building delivery.Originality/valueThe findings from this study provide insights into a less investigated area in sub-Saharan Africa and further provide new and additional information to the current state-of-the-art on the potential for the use of hemp in the building construction sector.