Residential Services


The Code for Sustainable Homes (CSH) is an environmental assessment used for rating and certifying the performance of new homes.

It is a national standard created by the Government in order to promote continuous improvements in sustainable properties.


Energy Performance Certificates are designed to inform how a property can be made more energy efficient and how carbon dioxide emissions can be reduced.

All properties that are bought, sold or rented now require an EPC to be provided.  An EPC should contain:

  • information on the property’s energy use and carbon dioxide emissions
  • a recommendation report with suggestions to reduce energy use and carbon dioxide emissions
  • Energy use and carbon dioxide emissions

The EPC also includes ratings that compare the current energy efficiency and carbon dioxide emissions with potential figures that the dwelling(s) in question could achieve. Potential figures are calculated by estimating what the energy efficiency and carbon dioxide emissions would be if energy saving measures were put in place.


The concept of Lifetime Homes was developed in the early 1990s by a group of housing experts, including Habinteg Housing Associationand the Joseph Rowntree Foundation.

The group was formed because of concerns about how inaccessible and inconvenient many homes were for large sections of the population. Lifetime Homes was developed to ensure that homes are accessible and inclsuive.


The SAP assessment is a tool defined for government to help deliver energy efficiency as part of dwelling design by evaluating the anticipated energy consumption of a property.

It enables the standard comparison of a dwelling’s energy performance by considering how much energy a dwelling will consume and how much carbon dioxide (CO2) will be created whilst providing a standard level of comfort and service provision, based on standardised occupancy conditions.

SAP quantifies a dwelling’s performance by assessing the energy use per unit floor area, a fuel cost based energy efficiency rating (the SAP rating) and emissions of CO2. The assessment estimates the annual energy consumption associated with the provision of space heating, domestic hot water, lighting and ventilation.