Environment
The portfolio achieved strong environmental results against a backdrop of growing tenant demand, tightening regulation and disclosure requirements and growing community awareness of environmental issues, particularly climate change and water shortages.
This year we achieved our third consecutive year of independently verified reductions in electricity, gas and water consumption.
Our portfolio is now 20% more efficient than it was in 2003/04 and 7.1% more efficient than in 2005/06.
| Electricity |
2003/04 |
2004/05 |
2005/06 |
2006/07 |
|
| Number of buildings in program with continuous statistics |
23 |
23 |
27 |
28 |
| Floor area (NLA) of buildings with continuous statistics (m2) |
463,150 |
460,911 |
659,329 |
703,110 |
| Metered electricity consumption (MWh) |
62,746 |
56,515 |
76,538 |
75,820 |
| Consumption intensity (kWh/m2) |
135 |
123 |
116 |
108 |
| Reduction (2006/07): 7.1% |
Our portfolio is now 41% more efficient than it was in 2003/04 and 5.4% more efficient than in 2005/06.
| Natural Gas |
2003/04 |
2004/05 |
2005/06 |
2006/07 |
|
| Number of buildings in program with continuous statistics |
22 |
27 |
27 |
27 |
| Floor area (NLA) of buildings with continuous statistics (m2) |
615,511 |
610,875 |
676,413 |
693,022 |
| Metered natural gas consumption (GJ) |
85,253 |
74,136 |
58,736 |
56,910 |
| Consumption intensity (MJ/m2) |
139 |
121 |
87 |
82 |
| Reduction (2006/07): 5.4% |
Excluding the positive effect of GreenPower purchases, our portfolio now contributes 22% fewer CO2 emissions per square metre than it did in 2003/04 and 9.3% less than in 2005/06.
Emissions during the period were 9,209.3T below our 2005/06 baseline and GreenPower purchases accounted for a further 11,716T reduction in the Group's emission profile.
Operation of the buildings included in our electricity and gas reporting contributed to the emission of 90,055T of CO2 during the period.
Our weighted average Australian Building Greenhouse Rating improved to 3.96 stars (out of five), 1.36 stars higher than in 2003/04. Investa now owns and manages 16 properties rated at 4.5 stars or higher. These properties constitute Australia's first substantial 4.5-plus star rated portfolio which enables us to meet the requirements of government and institutional tenants committed to reducing greenhouse gas emissions.
|
2003/04 |
2004/05 |
2005/06 |
2006/07 |
|
| Australian Building Greenhouse Rating (stars) |
2.60 |
3.34 |
3.68 |
3.96 |
| Improvement (2006/07): 0.28 stars |
We generated 10,072 NSW Greenhouse Gas Abatement Certificates during the period.
Our portfolio is now 33% more efficient than it was in 2003/04 and 6.9% more efficient than in 2005/06.
| Water |
2003/04 |
2004/05 |
2005/06 |
2006/07 |
|
| Number of buildings in program with continuous statistics |
37 |
37 |
35 |
34 |
| Floor area (NLA) of buildings with continuous statistics (m2) |
801,143 |
799,858 |
803,806 |
799,699 |
| Metered water consumption (kL) |
928,635 |
806,229 |
668,932 |
619,284 |
| Consumption intensity (L/m2) |
1,159 |
1,008 |
832 |
774 |
| Reduction (2006/07): 6.9% |
Our weighted average National Australian Built Environment Rating System (NABERS) Water rating improved to 3.20 stars (out of five), a 0.33 star improvement on last year – the scheme's first year of operation.
|
2003/04 |
2004/05 |
2005/06 |
2006/07 |
|
| NABERS Water rating (stars) |
na |
na |
2.87 |
3.20 |
| Improvement (2006/07): 0.33 stars |
The effectiveness of our water management platform was confirmed in March when we became the first organisation to achieve a 5 star rating based on Sydney Water's One-2-Five Management diagnostic.
In partnership with the City of Sydney, City of Melbourne and New South Wales Government we developed, launched and distributed the Green Lease Guide for commercial office tenants. The Guide defines what Green Leases and low impact fitouts are all about and so helps educate the market. The publication of the Green Lease Guide has strengthened our position as an attractive landlord for institutional and government tenants. It has also helped to strengthen our working relationships with key government authorities.
For the first time we have been able to estimate the materials use in Clarendon Residential's housing business. This produced some startling statistics and is helping to refine priorities for action. Analysing the net impacts of our materials use and our ability to effectively address these impacts through design and by collaborating with suppliers has produced our top 10 priorities for focus (and the 2006/07 quantities) as follows:
| Paint |
532,764L |
| Timber frames and trusses, pine internal timber (including mouldings) |
27,308m3 |
| Doors (entry and internal) |
38,522 (#) |
| Insulation (external walls and ceilings) |
563,503m2 |
| Bricks |
18,866,000 (#) |
| Standard roof tiles |
400,619m2 |
| Bricklayers sand |
23,479T |
| PVC sewer pipe |
272,776m |
| Copper pipe |
89,150m |
| Concrete for slabs |
49,200m3 |
We have analysed the quantities of energy embodied in housing construction materials, however we have not reported on this analysis pending more work to resolve issues associated with accountability and additionality.
Our portfolio diverted more than 60% of commercial and industrial waste from landfill to recycling throughout the year, up from 57.8% in March 2006.
|
2003/04 |
2004/05 |
2005/06 |
2006/07 |
|
| Waste diversion (%) |
na |
na |
57.8 |
60.9 |
| Improvement (2006/07): 5.4% |
1,686 tonnes of cardboard and paper was diverted during the period.
983 tonnes of commingled waste was diverted during the period.
We are not able to report accurate construction and demolition waste diversion statistics for our development businesses due to difficulties with contractor reporting, however we believe diversion rates were above 85%, in line with responsible industry practice.
During the period Investa did not own or develop any sites in, or adjacent to, protected areas or areas of high biodiversity value outside protected areas.
Back to Top