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Carbon Footprint

Our carbon footprint helps us to identify initiatives to reduce energy and water use and waste.

Climate change is widely recognised as one of the biggest global environmental challenges we face. It presents some challenging risks and uncertainties for business and society, but it also provides us opportunities to be innovative in the ways we try to reduce our impact. Overall in the year, we have seen a 4% reduction in our carbon footprint compared to last year.

Our stakeholders and customers look to us to ensure that we minimise the impact of our operations on the climate and that we design homes that will be able to adapt to possible climatic changes in the future. We regularly review the risks and opportunities that climate change may bring to our business and wider society. For more information on these, please see our Climate Change Risks & Opportunities Assessment.

We measure our carbon footprint through four types of emissions: emissions from our offices, site operations, business travel and commuting. We use this information to put in place initiatives to reduce our operational energy and water use and to reduce our waste.

Levels of influence and control





There was an overall increase for our office carbon footprint in 2016. This is due mainly to one of our offices moving from a solely occupied building to shared accommodation. This new office does not have sub-meters and so all utility costs and associated usage is split equally among all occupants. We also reported refrigerant gas losses of 114.5 tCO2e in the year, compared to none in 2015. However, these have been mitigated somewhat by reductions of 31% in our office water (from 1.6 tCO2e to 1.1 tCO2e) and 8% in our office electricity (from 465.8 tCO2e to 427.5 tCO2e) through the introduction of several initiatives, such as intelligent urinal water sensors and lighting upgrades in our Head Office.

1 Office gas 143.6
2 Office electricity 427.5
3 Office water 1.1
4 Office waste (landfilled) 2.9
5 Waste to energy (incineration) 0.2
6 Refrigerant gas loss 114.5
Subtotal 689.8

Our normalised emissions from our development sites have reduced by 13% (from 2.55 tCO2e/1000 sqft to 2.22 tCO2e/1000sqft). Our emissions associated with site fuel have decreased significantly thanks to several initiatives put in place to reduce our diesel consumption, including reducing the standard generator size used on site and reducing the amount of time a site compound uses a diesel generator instead of connecting to the National Grid.

7 Site gas 814.5
8 Site electricity 2,351.0
9 Site water 22.6
10 Site fuel 2,801.0
11 Site waste (landfilled) 1.7
Subtotal 5,990.8
Business travel

In 2016, we've seen a 4% increase per person in carbon emissions from business travel (from 2.27 tCO2e/person to 2.38 tCO2e/person). This is primarily due to an increase in the use of vehicles travelling to and from meetings in our different regions.

12 Company-owned vehicles 1,280.9
13 Employee-owned vehicles 667.3
14 Public transportation 40.3
15 Other (flights, taxis) 28.5
Subtotal 2017.0

In 2016, we've seen a 3% increase per person in carbon emissions from commuting (from 0.94 tCO2e/person to 0.96 tCO2e/person). The largest contributor to this is more people commuting to work by private transportation, combined with a decrease in the use of public transportation.

16 Employee commuting by private transportation 791.2
17 Employee commuting by public transportation 24.6
18 Employee commuting by other (taxi) 0.5
Subtotal 816.3
Total 9,513.9

9,513.9 Total tonnes CO2e (2015: 9,934)

11.2 Tonnes CO2e/person (2015: 12.5)

3.5 Tonnes CO2e/1,000sqft (2015: 3.7)

9.5 Tonnes CO2e/£turnover (2015: 12.3)

You can find out more about our environmental impact and performance in 2016 in Our Data.

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