1 Lambley Road

What the assessor found

Each part of the home, with the certificate's own energy efficiency rating.

• Walls

  Cavity wall, as built, no insulation (assumed)

  Poor

• Roof

  Pitched, 100 mm loft insulation

  Average

• Floor

  Solid, no insulation (assumed)

  Not rated on the certificate

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, no room thermostat

  Very poor

• Hot water

  From main system

  Good

• Lighting

  Low energy lighting in 33% of fixed outlets

  Average

The assessor's estimates at the energy prices in use when the certificate was made (2011), for a typical household. Today's bills will differ.

Improvements the certificate recommends

In the certificate's order. Each rating assumes the steps before it are done.

1. 1

   Cavity wall insulation

   Typical cost £100–£300 · saves about £143 a year

   Rating after57D
2. 2

   Low energy lighting for all fixed outlets

   Typical cost £20 · saves about £21 a year

   Rating after58D
3. 3

   Upgrade heating controls

   Typical cost £350–£450 · saves about £101 a year

   Rating after63D
4. 4

   Replace boiler with new condensing boiler

   Typical cost £1,500–£3,500 · saves about £88 a year

   Rating after68D
5. 5

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £23 a year

   Rating after69C
6. 6

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £11,000–£20,000 · saves about £207 a year

   Rating after80C

Costs and savings are the certificate's own, as estimated when it was made.