Water conservation is gaining importance across our portfolio due to rising costs in a number of municipalities, increased government regulations, and as climate change begins to impact water supplies in some geographies. In 2015, actual water consumption was 6,547,126 m3^ and has decreased by 1.2% since 2011. 

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CollapseActual Water Consumption (m3)

The graph below shows that when normalized for weather and occupancy we can report a much stronger improvement on water consumption across North America, with a decrease of 7.6%.

Much of this decrease in water consumption can be attributed to our Canadian portfolio (7.1% decrease in 2015 compared to 2011), and is partially due to an increase in building certifications as a result of LEED Volume and BOMA BESt Portfolio Program, each of which have a strong focus on water efficiency. All water reported is from municipal water sources and does not take into account on-site capture or re-use. 

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Expandnormalized water consumption (m3)

water‚Äč intensity

In the graphs below, normalized water intensity is shown as litres per square on an annualized basis and is normalized for weather and occupancy. Overall, water intensity has decreased across both Canada and the U.S. portfolio since 2011, with an 8.4% decrease in Canada and a 4.4% decrease in the U.S. The most notable declines in water intensity by asset-type were U.S. multi-family and office portfolio, and in Canadian office portfolio. The improvements in Canadian office have largely been driven by an increase in building certifications. 

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ExpandCanada: normalized building water intensity by asset type (L/sqft/yr)

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ExpandUS: normalized building water intensity by asset type (L/sqft/yr)

about the data

To understand the data shown here, it's useful to understand the changes in the portfolio. The changes in size are shown in the table below.  

Actual water data: The current year actual water data does not include normalization impacts. The prior year data has been adjusted to reflect acquisitions and dispositions in 2015 portfolio and new developments are added as completed.

Normalized water data: The current year normalized water data includes newly developed buildings but does not include buildings that have been acquired or disposed of in the past 5 years. Data for historical years is adjusted to reflect 2015 weather, occupancy and exceptional tenant loads.

Water estimates: Data reflects the office, retail, medical, multi-family and light industrial assets for which we have high-quality information. 91% of the water data is based on actual utility consumption as recorded through utility bills. The balance is estimated using modeling and historical analysis. In addition, data includes estimates to ensure completeness over the water consumption for properties that are under Bentall Kennedy’s operational control but were not included in our data sets as of December 31, 2015.

Water consumption data shown here is based on billing information from municipal water sources.

More detailed environmental performance data is available for download.

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Expandtotal area change (sqft)

irrigation retrofit leads to water savings

At an industrial park it Toronto, it was discovered that the irrigation systems alone were losing 50% of water due to overspray, wind and evaporation. 

Case Study

Quick Facts

Additional water use in the summertime in office buildings ranges from 20-40%, partially as a result of water use in air conditioning equipment.

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