17 Third 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)

  Very poor

• Roof

  Pitched, 50 mm loft insulation

  Poor

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Windows

  Fully double glazed

  Average

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Room thermostat only

  Poor

• Hot water

  From main system

  Good

• Lighting

  Low energy lighting in 50% of fixed outlets

  Good

The assessor's estimates at the energy prices in use when the certificate was made (2016), 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 £30 a year

   Rating after59D
2. 2

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £162 a year

   Rating after66D
3. 3

   Floor insulation (suspended floor)

   Typical cost £800–£1,200 · saves about £30 a year

   Rating after68D
4. 4

   Low energy lighting for all fixed outlets

   Typical cost £30 · saves about £21 a year

   Rating after69C
5. 5

   Upgrade heating controls

   Typical cost £350–£450 · saves about £24 a year

   Rating after70C
6. 6

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £81 a year

   Rating after73C
7. 7

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £35 a year

   Rating after75C
8. 8

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £5,000–£8,000 · saves about £282 a year

   Rating after86B

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