Local authority energy-performance profile
West Northamptonshire EPC ratings and energy costs
Understand how homes in West Northamptonshire score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.
Average EPC
C 70
1.5 points above analysed national average
Rated C or above
63.4%
of analysed certificates
Potential uplift
+13
average score points
Properties represented
53K
from 55K certificates
At a glance
What the data says about West Northamptonshire
63.4%
rated A–C
8.4%
rated E–G
£1,125
certificate-estimated annual cost
Cost figures are averages of estimates recorded on EPCs at different dates. They are useful for comparing areas, but they are not a forecast of a current household bill.
Latest official local-authority table
Updated through 30 June 2026
61,687
domestic EPC lodgements since 2008
63.9%
rated C or above
8.0%
rated E, F or G
The current MHCLG live table counts certificate lodgements, not unique homes. It complements the more detailed 2020–2025 EPCScore analysis below.
Housing market context — May 2026
Average property price
£292,495
Annual change
+1.8%
Context
Official UK HPI local-authority average
UK HPI figures are provisional and can be revised. They describe the whole local housing market; EPCScore does not infer that EPC ratings caused local price levels or changes. View the official UK HPI ↗
Fuel poverty context — 2024
9.8%
of households estimated fuel poor
17,955
estimated fuel-poor households
Low Income Low Energy Efficiency (LILEE)
official measure
DESNZ publishes these modelled estimates for England to identify broad patterns and particularly high or low fuel poverty. They are not a count of people and should not be treated as a causal result of local EPC ratings. View the official release ↗
Average EPC score in West Northamptonshire
EPC band distribution in West Northamptonshire
Certificate-estimated energy costs
| Cost Type | West Northamptonshire | National Avg | Difference |
|---|---|---|---|
| Heating | £837/yr | £782/yr | ▲ £55 |
| Hot water | £189/yr | £184/yr | ▲ £5 |
| Lighting | £99/yr | £95/yr | ▲ £4 |
| Total | £1,125/yr | £1,061/yr | ▲ £64 |
These values come from certificate assessments and reflect standardised occupancy assumptions and energy prices used when each EPC was produced. They are not live tariffs.
Property types in the dataset
Main heating fuel
Carbon emissions and improvement potential
3.2 t
current annual CO₂ estimate
1.8 t
potential annual estimate
90 m²
average floor area
When the represented homes were built
Average EPC score over time
- 2021
- 69
- 2022
- 70
- 2023
- 69
- 2024
- 71
- 2025
- 72