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The 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.

The 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.

Though 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.

Key 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).

Though 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.

This 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.

The purpose of this paper is to present a methodology to improve decision making about investments that reduce buildings' energy consumption.

A three‐stage methodology was developed and tested to analyse an existing Australian office building's energy use, its energy rating, and its life cycle investment. In total, seven cases of sets of improvements were modelled for energy performance. Their investment value was evaluated using a life cycle‐based analysis across several investment options.

A holistic approach to investment shows that the most effective sustainable refurbishments need not be the most expensive. Optimised investment can take advantage of the timing of both re‐investment in component renewal and efficiency gains from the refurbishment. Furthermore, relatively small changes in income can offset capital expenditure for refurbishments and protect against obsolescence.

Much work on sustainable refurbishments rarely considers the investment basis, across a life cycle, of that expenditure, generally seeing them as a cost and rarely considers the optimal time for that expenditure in the asset life cycle. This paper addresses both concerns.

This case study aims to appraise the financial benefits of green building construction in developing countries. The case study presents, green building's positive net present value (NPV) investment in real terms and potentially enhanced stock market returns at the firm level compared to competitors.

The case study examines secondary data on a green building certification and longitudinal operation costs to estimate green building investments' financial benefits. The case study also compares the stock market performance of green building portfolio company with non-green building competitors of similar size and industry.

The case study finds out that the real return rate on green building investment is higher than the weighted average cost of capital (WACC) of the company with an inflation-adjusted payback period of fewer than ten years. Findings compare favourably to the extant literature which was mostly in developed economies. The paper further highlights that stock market performance for a green building focused company shows improved returns to shareholders relative to non-green competitors.

The results are specific to the time and building researched; green buildings costs have reduced over time, and a new study may show improved case study findings. The case study results on stock market performance are indicative and may need further research for evaluation.

The case study presents a model for critical appraisal of green buildings investment. The paper further indicates that green building investment may lead to operational savings and superior stock performance compared to competitors.

The paper presents a green building investment appraisal model which might be useful for the industry and academia. Developing countries have limited literature on green buildings' financial benefits; this case study quantifies the financial benefits and compares them with the available literature related to developed economies’ green buildings.

The purpose of this paper is to explain the rationale for integrating sustainability issues into property valuation theory and practice and to provide initial suggestions for valuers on how to account for sustainability issues within valuation reports.

The authors emphasise the key role of valuation professionals and of the valuation process itself in achieving a broader market penetration of sustainable construction. It is explained that, on the one hand, property valuation represents the major mechanism to align economic return with environmental and social performance of property assets, and thus to express and communicate the advantages and benefits of sustainable buildings. On the other hand, it is explained that gradual changes in market participants' perceptions in favour of sustainable buildings must be reflected within the property valuation and associated risk assessment process (otherwise valuers would produce misleading price estimates). The authors identify both the financial benefits and risk reduction potential of sustainable design as well as valuation input parameters that would allow these benefits to be reflected in property price estimates.

The authors show that the main reasons for immediately and rigorously integrating sustainability issues into property valuation are as follows: more sustainable patterns of behaviour are urgently necessary to sustain the viability of the Earth's ecosystems; a huge untapped market potential exists for sustainable property investment products and consulting services; sustainable buildings clearly outperform their conventional competitors in all relevant areas (i.e. environmentally, socially and financially); neglecting the benefits of sustainable design leads to distorted price estimates; and reflecting sustainability issues in property price estimates is already possible and the validity of this decision depends solely on the valuer's capability and sophistication to explain and justify his/her assumptions within the valuation report. However, it is also shown that efforts need to be undertaken to improve the description of property assets in transaction databases in order to provide the informational databases necessary to empirically underpin a valuer's decision to assign a “valuation bonus” to a sustainable building or a “valuation reduction” to an unsustainable/conventional one.

The paper postulates that valuation reports should be extended to include the following additional elements: a clear description of the availability of certain sustainability‐related property characteristics and attributes; a statement of the valuer's opinion about the benefits of these characteristics and attributes; and a statement of the valuer's opinion about the impact of these benefits and/or risks on property value.

Building developments are often capital intensive, have a long payback period and many associated risks and uncertainties. This makes investments in building projects to be a big challenge. This study aims to develop a computerized simulation-based binomial model (CSBBM) for building investment appraisal with a view to improving the economic sustainability of proposed building projects.

Mathematical equations and algorithms were developed based on the binomial method (BM) of real options analysis and then implemented on a computer system. A hybrid algorithm that integrates Monte Carlo simulation (MCS) and BM was also developed. A real-life project was used to test the model. Sensitivity analysis was also conducted to explore the influence of input variables on development option value (DOV).

The test result shows that the model developed provides a better estimate of the value of an investment when compared with traditional net present value technique, which underestimate the value. Moreover, inflation rate (i) and rental value (Ri) are the most sensitive variables for DOV. An increase in i and Ri by just 5% causes a corresponding increase in DOV by 202% and 132%, respectively. While the least sensitive variable is the discount rate (r), as an increase in r by 5% causes a corresponding decrease in DOV by just 9%. The CSBBM is capable of determining the optimal time of development of buildings with an accuracy of 80.77%.

The hybrid model produces higher DOV than that of only the BM because MCS considers randomness in uncontrollable variables. Thus, building investment decision-makers should always use MCS to complement the BM in an investment analysis.

There is limited evidence on the use of this kind of hybrid model for determining DOV in practice.

The purpose of this paper is to examine significant steps taken by the Pennsylvania State University (Penn State) to account for both energy cost savings and greenhouse gas (GHG) emissions reduction goals through strategic investments in energy conservation measures (ECMs) in campus buildings. Through an analysis of multiple years of investment in facility upgrades across the university, the impacts of ECMs of various types are characterized by building type. The standards and criteria for ECMs investments are also evaluated with the goal to develop a predictive tool to support decision making pertaining to an annual investment in a portfolio of ECMs that will maintain a trajectory to achieve both financial return on investment as well as GHG reduction goals.

This study is comprised of three main parts: analyzing the energy costs saving and GHG emissions reduction contribution of various building types in which ECMs were conducted, analyzing costs saving and GHG emissions reduction contribution of each ECM while considering the average annual investments made in them and estimating the impact of upgrading Penn State’s steam plants from firing a mixture of coal and natural gas to natural gas only on the GHG emissions.

These analyses help identify which types of buildings and ECMs would have larger savings and emissions reduction contributions. A calculator is also created to enable forecasting of costs saving and GHG emissions reduction of investment distribution strategy among ECMs. This study demonstrates that the calculator based on data from previous years will benefit decision makers in more wisely configuring the investment portfolio.

This paper fulfills an identical need to couple energy efficiency strategies coupled with the environmental impacts associated with different fossil fuel energy sources.

In light of evidence of low levels of maintenance of public buildings, this paper aims to investigate trends and determinants of public building conditions in Norwegian local governments.

The authors consider data from surveys and public records in regression analyses.

On average, the condition of Norwegian local public facilities has improved slightly in the period 2004-2016. The survey data suggest substantial fluctuations in building conditions and a negative relationship between building conditions in 2004 and 2016. Local governments with poor building conditions in 2004 had higher investment in the following years. The authors find no systematic relationship between the conditions in 2004 and maintenance expenditures in subsequent years. They conclude that if maintenance levels are too low, the results suggest that investment levels are too high. Further, they find that both political and fiscal factors are important in explaining building conditions.

The authors provide insight into determinants and trends of building conditions in Norwegian local governments. The results hint at an unhealthy balance between maintenance spending and public investments.

The accessible nature of straw bale building lends itself well to self-built and workshop-built housing; straw is known to be both relatively inexpensive and easy to work with for people new to construction. A question then arises as to whether or not hiring an experienced builder can reduce overall costs of such a structure. This study conducts a worldwide survey to straw bale home owners to answer this question and to determine general economic data on straw bale homes, such as: what home owners value, who the main builder typically is, and what usually causes budgets to overrun. A key finding is that self-building is economically justified if the projected saving is higher than the cost of a contractor and if the usually longer time needed to build the home is amenable to the investor. An economic case study is also conducted on a straw bale home in Radomlje, Slovenia. All building expenses are categorized by building phase and subgrouped by cost in accordance with accepted building standards. A key observation is how demanding any specific building phase is in comparison to conventional building.

The need for flexibility between organisational units is well established in corporate real estate. While the cost of flexibility is rather straightforward to approximate, measuring economical value of the flexibility is not straightforward. The purpose of this paper is to explore how real options analysis can be used for valuing flexibility in a real retrofit investment case, present a research process for valuing the flexibility in the retrofit investment case, and evaluate the empirical usability of real options valuation results compared with traditional discounted cash flow valuation results.

The research is conducted as a case study. A newly introduced real options valuation method, the fuzzy pay-off method is used for analysing data from a Finnish office building retrofit investment case. The major difference in the selected method is that it uses fuzzy set theory instead of probabilistic theory, and the main advantage is the practical applicability, i.e. only three scenarios (minimum, best guess, and maximum) are needed for the valuation of flexibility. In the case, the scenarios are determined using a seven-phase research process that incorporates data available (e.g. rental agreements, building information) to a corporate real estate unit. The research process involves defining vacancy scenarios for rental agreements, transforming them into potential income achievable with flexibility, estimating cost of flexibility, comparing the potential income with the costs, and valuing the real options.

The main finding of this paper is that real options analysis; especially the fuzzy pay-off method can be used for assessing the monetary value of flexibility. The applicability of the fuzzy pay-off method into a practical investment case was found straightforward because assignment of probabilities into different uncertainty scenarios was unnecessary. In the empirical case, it was found that flexibility investments were profitable only when parts of the building instead of the whole building were designed flexible. The present value of the pay-off from flexibility ranged from negative 58/sqm to positive 130/sqm, depending on the tenant.

Real options literature, especially in the real estate and construction sector, has requested for new applications of real options analysis in practical setting. This paper adds to that request with an example of evaluating flexibility in a retrofit investment case. The empirical analysis produced in this paper was perceived valuable by case study investor and can be used as a guidance and motivation for further applications of real options in the industry.

The purpose of this study is to examine the application of sustainable building design and operation within a university setting to determine its economic efficacy and potential for further university investment.

This study incorporated a life cycle cost analysis (LCCA), simple payback period and discounted payback period calculations to determine the return on investment, including a sensitivity analysis when comparing the energy use and financial benefits of the sustainable design of a multi-use facility at Toronto Metropolitan University with buildings of similar size and use-type.

It was found that there is a positive business argument for Canadian Universities to consider the use of sustainable design to reduce energy use and greenhouse gas (GHG) emissions. A reasonable payback period and net present value within an institutional context were determined using a life-cycle cost assessment approach.

This study was limited to the measure of only a single location. Certain assumptions regarding energy pricing and interest rates and the related sensitivities were anchored on a single year of time, and the results of this study may be subject to change should those prices or rates become significantly different over time. Considerations for future research include a longitudinal approach combined with a more detailed analysis of the effect of use-type on the variables discussed.

For university administrators, the results of this study may encourage institutions such as universities to approach new building projects through the lens of energy efficiency and environmental sustainability.

GHG emissions are a well-proven contributor to global climate change, and buildings remain a significant source of GHG emissions in Canada due to their winter heating and summer cooling loads. As a result, sustainable building design on university campuses can mitigate this impact by optimizing and reducing energy consumption.

Research related to the economic evaluation of sustainable building design on university campuses is generally limited, and this study represents the first of its kind in regard to an LCCA of a sustainably designed building on a Canadian University campus.