EPC Ratings in West Sussex

County — 138,848 Energy Performance Certificates on record

139K

Certificates

133K

Properties

D (68)

Average Rating

£1,078

Avg Energy Cost/yr

Key Insights

📈

Properties here could improve by an average of 14 points — from D to C with recommended upgrades.

🌱

CO₂ emissions could be reduced by 1.6 tonnes per property per year — a 48% reduction with energy improvements.

🏠

57% of properties are houses — the most common type in West Sussex.

🏗️

Most properties were built 1950-1966 (17%). Older buildings typically have lower EPC ratings due to poorer insulation standards.

🏢

57% of properties are owner-occupied — a significant rental market exists here.

EPC Rating

A92+

1.2%

B81–91

16.5%

C69–80

38.3%

D55–68

31.2%

E39–54

10.2%

F21–38

2.1%

G1–20

0.5%

West Sussex is 0.5 points worse than the national average (D, 68.5/100).

West Sussex

68.5

National average

Potential

Rating Distribution

1,6711.2%

16.5%

22,845

38.3%

53,195

31.2%

43,368

10.2%

14,154

2,8962.1%

7190.5%

Average Annual Energy Costs

Cost Type	West Sussex	National Avg	Difference
Heating	£782/yr	£782/yr	—
Hot water	£195/yr	£184/yr	▲ £11
Lighting	£101/yr	£95/yr	▲ £6
Total	£1,078/yr	£1,061/yr	▲ £17

Property Types

House

79,49657.3%

Flat

41,07229.6%

Bungalow

13,6929.9%

Maisonette

3,5682.6%

Park home

1,0200.7%

Main Heating Fuel

Mains gas

105,40676.5%

Electric

25,09618.2%

Oil

5,0063.6%

LPG

1,4831.1%

Other

7360.5%

CO₂ Emissions

3.3 tonnes/yr

Current average

1.7 tonnes/yr

Potential

Average floor area: 92 m²

Construction Age

Pre-1900

8,342

1900–1929

8,890

1930–1949

13,026

1950–1966

23,040

1967–1975

19,425

1976–1982

10,308

1983–1990

10,142

1991–1995

5,182

1996–2002

6,231

2003–2006

4,139

2007–2011

4,586

2012+

21,029

Efficiency Trend Over Time

Search Another Postcode

West Sussex has 138,848 Energy Performance Certificates on record, covering 132,755 properties. The average EPC rating is D with an efficiency score of 68 out of 100. Annual energy costs average £1,078, comprising £782 for heating, £195 for hot water and £101 for lighting. Average CO₂ emissions are 3.3 tonnes per year.