High glazing area (0)
| 0 - 1.98 |
| 1.99 - 2.55 |
| 2.56 - 3.32 |
| 3.33 - 4.16 |
| 4.17 - 5.27 |
Modern homes (1)
| 0 - 15.31 |
| 15.32 - 30.04 |
| 30.05 - 43.38 |
| 43.39 - 57.46 |
| 57.47 - 76.09 |
Flats (2)
| 0 - 22.94 |
| 2.95 - 30.85 |
| 30.86 - 40.12 |
| 40.13 - 64.84 |
| 64.85 - 85.54 |
Terrace homes (3)
| 0 - 41.86 |
| 41.87 - 53.59 |
| 53.60 - 63.32 |
| 63.33 - 75.11 |
| 75.11 - 90.85 |
Poor roof energy efficiency (4)
| 0 - 21.97 |
| 21.98 - 27.67 |
| 27.68 - 38.70 |
| 38.71 - 49.45 |
| 49.45 - 89.41 |
Very poor roof energy efficiency (5)
| 0 - 10.01 |
| 10.02 - 13.87 |
| 13.88 - 17.79 |
| 17.80 - 25.43 |
| 25.44 - 31.31 |
Poor glazing energy efficiency (6)
| 0 - 2.99 |
| 3.00 - 4.70 |
| 4.71 - 5.85 |
| 5.86 - 10.73 |
| 10.74 - 16.96 |
Very poor glazing energy efficiency (7)
| 0 - 3.60 |
| 3.61 - 7.98 |
| 7.99 - 17.46 |
| 17.47 - 28.61 |
| 28.62 - 54.66 |
South-facing homes (8)
| 0 - 12.84 |
| 12.85 - 21.07 |
| 21.08 - 25.60 |
| 25.61 - 32.62 |
| 32.63 - 47.88 |
South West-facing homes (9)
| 0 - 12.65 |
| 12.66 - 18.89 |
| 18.90 - 25.90 |
| 25.91 - 33.28 |
| 33.29 - 45.36 |
Overcrowding (10)
| 0 - 0.55 |
| 0.56 - 0.94 |
| 0.95 - 1.81 |
| 1.82 - 3.16 |
| 3.17 - 7.98 |
|