EPC Ratings in ST4

Postcode area ST4 — 9,866 Energy Performance Certificates on record

10K

Certificates

Properties

D (67)

Average Rating

£1,073

Avg Energy Cost/yr

EPC Rating

A92+

0.9%

B81–91

11.1%

C69–80

36.2%

D55–68

40.5%

E39–54

9.3%

F21–38

1.3%

G1–20

0.8%

ST4 is 1.5 points worse than the national average (D, 68.5/100).

ST4

68.5

National average

Potential (with improvements)

Rating Distribution

880.9%

11.1%

1,091

36.2%

3,574

40.5%

3,992

9.3%

918

1271.3%

760.8%

Average Annual Energy Costs

Cost Type	ST4	National Avg	Difference
Heating	£814/yr	£782/yr	▲ £32
Hot water	£171/yr	£184/yr	▼ £13
Lighting	£87/yr	£95/yr	▼ £8
Total	£1,073/yr	£1,061/yr	▲ £12

Property Types

House

7,29774.0%

Flat

2,07321.0%

Bungalow

4314.4%

Maisonette

650.7%

Main Heating Fuel

Mains gas

8,34287.2%

Electric

1,16412.2%

Other

530.6%

Oil

100.1%

LPG

10.0%

CO₂ Emissions

3.3 tonnes/yr

Current average

1.7 tonnes/yr

Potential (with improvements)

Average floor area: 78 m²

Construction Age

Pre-1900

818

1900–1929

3,281

1930–1949

1,196

1950–1966

1,004

1967–1975

684

1976–1982

352

1983–1990

369

1991–1995

191

1996–2002

176

2003–2006

340

2007–2011

263

2012+

955

Efficiency Trend Over Time

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The postcode area ST4 has 9,866 Energy Performance Certificates on record, covering 9,339 properties. The average EPC rating is D with an efficiency score of 67 out of 100. Annual energy costs average £1,073, comprising £814 for heating, £171 for hot water and £87 for lighting. Average CO₂ emissions are 3.3 tonnes per year, with the potential to reduce to 1.7 tonnes through energy efficiency improvements.