Flat 2 25 Stepney Green

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

  (another dwelling above)

  Not rated on the certificate

• Floor

  Solid, no insulation (assumed)

  Not rated on the certificate

• Windows

  Single glazed

  Very poor

• Heating

  No system present: electric heaters assumed

  Very poor

• Hot water

  Electric instantaneous at point of use

  Very poor

• Lighting

  Good lighting efficiency

  Good

The assessor's estimates at the energy prices in use when the certificate was made (2026), 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 £7,500–£11,000 · saves about £57 a year

   Rating after62D
2. 2

   Floor insulation (solid floor)

   Typical cost £5,000–£10,000 · saves about £86 a year

   Rating after67D
3. 3

   Draught proof single-glazed windows

   Typical cost £150–£250 · saves about £6 a year

   Rating after67D
4. 4

   High heat retention storage heaters

   Typical cost £400–£800 · saves about £179 a year

   Rating after80C
5. 5

   Replace single glazed windows with low-E double glazed windows

   Typical cost £4,500–£6,000 · saves about £65 a year

   Rating after83B

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