Residential Energy Assessments

Currently all properties marketed for sale now require an Energy Performance Certificate to be produced as part of the sales process. The EPC was introduced following a European Union Directive (2002/91/EC) on the Energy Performance of Buildings with ratings based on fuel costs and environmental impact based on Carbon Dioxide emissions. The UK's Reduced Data Standard Assessment Procedure (RDSAP) is calculated using data taken from the property. From April 2008 Energy Performance Certificates will be required for new build (on construction) properties and all rental properties from October 2008.

The energy assessment graphs must be attached to property particulars as soon as it is available. All EPCs will be held on a central database to be accessed by potential buyers, solicitors, mortgage companies and estate agents. Each EPC will take approximately 30-60 minutes and photographs taken to support the evidence of the information gathered. The data collected is then entered into software that calculates the energy efficiency of the property along with the environmental impact.

Energy assessment recommendations vary from low cost to high cost and further measures. This can include adding energy efficiency light bulbs, increasing loft insulation, upgrading the heating system and controls to adding solar panels, double glazing and wall insulation. The Government has suggested that grants may be available to implement energy efficiency changes however there is no obligation of the home owner to implement any of the recommendations.

Over 50 items of data are collected during the assessment by a qualified Home Inspector or Domestic Energy Assessor including:

1. The dimensions of the property are recorded for each room, loft conversions and extensions. Areas where heat may be lost are also measured.

2. The number of energy efficient light bulbs is counted.

3. The heating system is recorded for example the boiler make and model, additional heating such as gas or electric fires, radiator thermostatic valves, water cylinder features such as insulation and thermostats.

4. Loft insulation is measured where applicable.

5. The type and frequency of double and/or secondary glazing along with approximate age.

6. The age and construction type of the building - this greatly affects the energy efficiency of the property.