2 Avian Drive

What the assessor found

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

• Walls

  System built, as built, no insulation (assumed)

  Very poor

• Roof

  Pitched, no insulation

  Very poor

• Floor

  Solid, no insulation (assumed)

  Not rated on the certificate

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer and room thermostat

  Average

• Hot water

  Electric immersion, standard tariff

  Very poor

• Lighting

  Low energy lighting in 38% of fixed outlets

  Average

The assessor's estimates at the energy prices in use when the certificate was made (2014), 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

   Increase loft insulation to 270 mm

   Typical cost £100–£350 · saves about £194 a year

   Rating after52E
2. 2

   Floor insulation

   Typical cost £800–£1,200 · saves about £50 a year

   Rating after54E
3. 3

   Low energy lighting for all fixed outlets

   Typical cost £40 · saves about £29 a year

   Rating after55D
4. 4

   Upgrade heating controls

   Typical cost £350–£450 · saves about £43 a year

   Rating after56D
5. 5

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £108 a year

   Rating after60D
6. 6

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £126 a year

   Rating after65D
7. 7

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £9,000–£14,000 · saves about £231 a year

   Rating after74C

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