2 Iris Avenue

What the assessor found

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

• Walls

  Solid brick, as built, no insulation (assumed)

  Poor

• Roof

  Pitched, 250 mm loft insulation

  Good

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Windows

  Fully double glazed

  Average

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  TRVs and bypass

  Average

• Hot water

  From main system

  Good

• Lighting

  Low energy lighting in 56% of fixed outlets

  Good

The assessor's estimates at the energy prices in use when the certificate was made (2024), 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

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £263 a year

   Rating after69C
2. 2

   Floor insulation (suspended floor)

   Typical cost £800–£1,200 · saves about £78 a year

   Rating after71C
3. 3

   Low energy lighting for all fixed outlets

   Typical cost £20 · saves about £45 a year

   Rating after72C
4. 4

   Upgrade heating controls

   Typical cost £350–£450 · saves about £54 a year

   Rating after74C
5. 5

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £76 a year

   Rating after75C
6. 6

   Replacement glazing units

   Typical cost £1,000–£1,400 · saves about £58 a year

   Rating after77C
7. 7

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £3,500–£5,500 · saves about £566 a year

   Rating after88B

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