Blurred city lights. Source:

How much impact might savings “within the walls” have?

In a recent post I commented:

If developers aren’t prioritising sustainability due to a perceived lack of market demand, and owners corporations’ focus is elsewhere, where else can efficiencies be gained? What about what happens “within the walls” of the apartments themselves?

While the individual savings might be small, the cumulative benefits might be significant. Just how significant is unclear, however. So it’s hard to judge just what sort of impact energy efficiency measures across a medium- or high-density residential complex would be. I did a bit of digging but couldn’t find readily available stats. Are savings in this context just going to be a “band-aid” solution? Or can it make a significant contribution?

Let’s assume, for a moment, that the cumulative effect is significant enough to warrant attention.

Ahh, assumptions. We have to make them sometimes to get moving, but it’s always best to close the loop, through research, if we can.

I spent a little bit of time the other day looking into this, seeing if I could source stats or research that examine the difference in energy consumption in a medium- and/or high-density residential environment (e.g. apartments) versus low-density (e.g. houses), and found some interesting tidbits… Continue reading

Business 2.0, Sustainability

Energy savings in high-density residential

I wrote recently about the value of creating connections to nature in an urban environment.

I came across a striking statistic that really reinforces this point:

By 2030, 80% of City of Sydney residents will live in apartments and 90% of all new homes built will be in high rise apartment buildings.

A layman’s reading of this is that much of the benefits of energy efficiency in addressing emissions are going to have to come from improvements at the high-density residential level. Continue reading