The position in Windsor and Maidenhead
There are 2,734 unique commercial properties in Windsor and Maidenhead with a certificate on the Energy Performance of Buildings Register. Of those, 2,041 – 74.7% – are rated below EPC B, which is 1.4 percentage points better than the England and Wales average of 76.1%.
The largest category locally is retail & financial services, and the postal towns and districts most represented are Maidenhead, Windsor, Ascot, Slough, Reading. Average floor area is 587 m² and the average asset rating is 72.
532 certificates in the district have expired (19.5% of the total), of which 78 were rated F or G when issued – the least comfortable position on the register, and the one owners are least likely to know about.
Key figures
Band distribution
| Band | Properties | Share | Share, shown as a bar | vs England & Wales |
|---|---|---|---|---|
| A+ | 4 | 0.1% | -0.2 | |
| A | 117 | 4.3% | +0.2 | |
| B | 572 | 20.9% | +1.4 | |
| C | 942 | 34.5% | +1.3 | |
| D | 706 | 25.8% | +0.1 | |
| E | 290 | 10.6% | -2.3 | |
| F | 48 | 1.8% | -0.1 | |
| G | 55 | 2.0% | -0.5 |
Commercial stock by sector
| Sector | Properties | Share | Share, shown as a bar |
|---|---|---|---|
| Retail & financial services | 953 | 34.9% | |
| Offices & workshops | 795 | 29.1% | |
| Restaurants, cafes & pubs | 339 | 12.4% | |
| General & special industrial | 114 | 4.2% | |
| Storage & distribution | 104 | 3.8% | |
| Education | 93 | 3.4% | |
| Hotels | 70 | 2.6% | |
| Primary healthcare | 61 | 2.2% |
Floor area – who the 2031 standard catches
The 2031 EPC B standard is expected to apply only to buildings over 1,000 m². In Windsor and Maidenhead that line falls here:
| Floor area | Properties | Share | Share, shown as a bar |
|---|---|---|---|
| Under 250 m² | 1,594 | 58.3% | |
| 250–500 m² | 547 | 20.0% | |
| 500–1,000 m² | 279 | 10.2% | |
| 1,000–2,500 m² | 183 | 6.7% | |
| 2,500–10,000 m² | 120 | 4.4% | |
| Over 10,000 m² | 11 | 0.4% |
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For editors and journalists
Quote – attributable to evenEco
Please attribute to evenEco and link to evenhub.uk/commercial/areas/windsor-and-maidenhead/. Figures derived from the GOV.UK Energy Performance of Buildings Register, deduplicated to the most recent certificate per property. Media enquiries: contact us.
Shareable summary – Windsor and Maidenhead
| Measure | Figure |
|---|---|
| Commercial properties analysed | 2,734 |
| Below EPC B | 2,041 (74.7%) |
| Below EPC E – unlettable without exemption | 103 (3.8%) |
| Over 1,000 m² and below EPC B | 180 |
| Expired certificates | 532 (19.5%) |
| Average floor area | 587 m² |
| National rank (share below EPC B) | 219 of 319 |
Common questions
How many commercial properties in Windsor and Maidenhead are below EPC B?
2,041 of 2,734 – 74.7% of the commercial stock on the register. That is 1.4 percentage points better than the England and Wales average of 76.1%.
How many buildings in Windsor and Maidenhead are caught by the 2031 EPC B standard?
180 commercial buildings in Windsor and Maidenhead are over 1,000 m² and currently rated below EPC B, which is the cohort the 2031 standard is aimed at.
How many commercial buildings in Windsor and Maidenhead are already unlettable?
103 are rated F or G. Letting those without a registered exemption has been unlawful since 1 April 2023. A further 78 have an expired certificate that was rated F or G.
Where does Windsor and Maidenhead rank nationally?
219 of 319 local authorities, ranked by the share of commercial stock below EPC B, with rank 1 being the highest share.
Local authorities with a similar profile
East Hampshire
74.8% below EPC B · 2,053 properties
See the data →Gedling
74.8% below EPC B · 1,476 properties
See the data →Exeter
74.8% below EPC B · 2,838 properties
See the data →Bexley
74.7% below EPC B · 3,218 properties
See the data →Peterborough
74.7% below EPC B · 3,512 properties
See the data →St Albans
74.6% below EPC B · 2,205 properties
See the data →