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Benefits of green renovation projects

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The World green Building Trends 2016 study by Dodge Data & Analysis features the responses from more than 1000 survey participants from 69 countries and includes 13 country specific profiles. The report has a section on business benefits of green building.

About half (48%) of respondents report that they have done a green retrot/renovation project in the last three years, and more than one third of respondents (37%) report that they expect to do a green retrot/renovation project in the next three years. Retroit/renovation activity is unevenly distributed globally, with few respondents in Poland, Saudi Arabia, China and India expecting to engage in retroit work in the next three years (see pages 11 and 12 for more information). Data that makes a compelling business case for green retroits, therefore, is essential to help the existing building stock globally improve its performance.

Operating Cost Decreases

Respondents were asked to what degree operating costs declined due to green retroit/renovation projects over two time periods: the irst 12 months after the project was completed and the next five years.

As the chart at top wwright indicates, the current study’s reported declines over the next 12 months closely mirror those from the 2012 study, with both yielding a median of 9% in operating cost decreases. The fact that the operating costs decreased more for retroit/renovation projects than for new construction is consistent with the indings from other studies about green building conducted by Dodge Data & Analytics. It also speaks to a generally higher level of building performance on energy and other green factors expected currently in new buildings than was common decades ago.

While the median expected cost decreases for one year are higher for retroits/renovation than for new buildings, they are slightly lower when considering the next ive years. This may be due to expectations that retroits/renovations may not always be able to achieve the same level of high performance as a building designed and built to be green from the start. However, the gap between the two is slightly less in 2015 than it was in 2012, possibly suggesting that the potential for highperformance retroits is more widely recognized.

In addition, while the median value turns out to be the same, there are differences in the distribution of respondents across the different levels of cost decreases expected in five years. Between 2012 and 2015, there was a drop of eight percentage points between those who believe that green retroits save more than 15%. This drop is offset in part by an eight percentage point increase in those who report an 11% to 15% operational savings.

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