An energy-efficiency model has been developed for each Green Street house type. Click on the house type links in the box on the left to find detailed expert calculations. 

These models set out two packages of energy improvements highlighting energy benefits that you can incorporate to meet Best Practice Standards (as  required by SDS) and how you can exceed these.  They also highlight where the packages will result in a 60% improvement in line with Government guidance.

The basic package to meet Best Practice Standards considers work to walls, roofs, windows and doors (and sometimes floors), ventilation, lighting and heating.  The improved package considers even more energy-efficient approaches to the above and to flooring, introducing the use of renewable energy and, in some circumstances, communal heating.

The models demonstrate the measures you can take, the resulting ?U? values, the possible costs, carbon savings and the  resulting energy rating.  They also include information on running costs and potential savings to residents.

These models provide one way of achieving improved energy efficiency for the house types.  However, the fuel type and actual circumstances of any home will dictate the best approach.  If your organisation sets a minimum energy rating of, say, 75, this would provide flexibility in its package of energy measures.

The packages have been developed using BRE?s Domestic Energy Model (BREDEM) and show what can be achieved by a holistic approach. As a result, the carbon savings and energy ratings are calculated on a cumulative basis.  This means that potential ratings cannot be guaranteed if an element is swapped or taken out of the package.

To see the model for energy savings on a period terrace click here.

To see the model for energy savings on a period conversion click here.

To see the model for energy savings on a tenament block click here.

To see the model for energy savings on a semi detached house click here.

To see the model for energy savings on a low rise block click here.

To see the model for energy savings on a modern terrace click here

 To see the model for energy savings on a high rise click here.

To see the model for energy savings on a system block click here.