Postcode intelligence
B5 · Highgate · Lee Bank
Every domestic energy certificate lodged in B5, as held on the national register. 9,240 properties.
81
Median SAP score
Band B
1,321
Below band C
14.3% of stock
240
Cannot reach C at all
2.6%
163
Expiring in 12 months
730 already lapsed
Median property in B5 scores 81. The legal minimum for a private tenancy from October 2030 is 69.
What the stock looks like
- Dominant property type
- Flat
- Dominant built form
- Mid-Terrace
- Dominant age band
- England and Wales: 2003-2006
- Median floor area
- 60 m²
- Privately or socially rented
- 0 (0%)
- Median potential score
- 83
Where B5 loses its points
Mean element rating across every certificate in the district, on the register’s one-to-five scale. Lower is worse.
- main heating2.3
- hot water2.6
- roof3.6
Typical gains from common measures
Estimated from certificates lodged across B, DY, WS and WV in the last five years. Ranges are 90% confidence intervals — treat these as typical, not as a prediction for any one property.
| Measure | Typical gain | Indicative cost |
|---|---|---|
| High heat retention storage heaters and dual immersion cylinder | 14.3–14.7 pts | £1,200–£1,800 |
| High heat retention storage heaters | 8.0–8.3 pts | £1,200–£1,800 |
| Solar water heating | 5.8–5.9 pts | £4,000–£6,000 |
| 50 mm internal or external wall insulation | 5.7–5.8 pts | £4,000–£14,000 |
| Solar photovoltaic panels, 2.5 kWp | 5.7–5.8 pts | £3,500–£5,500 |
50 months to the deadline
1,321 properties in B5 are below band C. From 1 October 2030 none of them can be let until they reach it.
Book an assessmentCheck a specific addressSource: Energy Performance of Buildings Register, MHCLG. Figures cover lodged certificates only and exclude properties never assessed. An EPC is valid for ten years. How these figures are calculated.