Wales
MEES 2031 exposure in Caerphilly
106 of the 137 industrial and warehouse buildings over 1,000 m² in Caerphilly with an EPC are rated C to E: 4.5m sq ft (417,306 m²) of floorspace that meets today's E minimum but falls short of the proposed EPC B standard.
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Caerphilly in figures
EPC register, snapshot 30 Sep 2026
- Rated C to E
- 4.5m sq ft417,306 m² in 106 buildings
- Rated F or G
- 3 buildings248k sq ft (22,996 m²), below today's E minimum
- Rated A+ to B
- 28 buildingsAlready at the proposed standard
- Share below B
- 80%Of 137 buildings over 1,000 m². England and Wales: 70%
Caerphilly has the 70th most floorspace rated C to E of 316 local authorities in England and Wales, and the 4th most of 22 in Wales.
EPC rating mix
Share of buildings over 1,000 m², by latest EPC rating
- Caerphilly137 buildings20%77%
- Wales1,738 buildings22%75%
- England and Wales38,148 buildings30%67%
Latest certificate per building from the government's EPC register, snapshot 30 Sep 2026. Industrial and warehouse uses (B2 and B8), floor area over 1,000 m² as declared on the EPC; 1 m² is 10.7639 sq ft. How we count it
What stands out in Caerphilly
Compared with the other 21 local authorities in Wales and with England and Wales, from the same EPC register snapshot.
- Its floorspace rated C to E is spread across sizes: 42% in buildings of 1,000 to 5,000 m², 29% in buildings of 5,000 to 10,000 m², 29% in buildings over 10,000 m².
- 65 of its 109 buildings rated C to G (60%) have an EPC that has lapsed or is estimated to lapse before 2031, against 54% across England and Wales; 32 have already lapsed.
- 20 of its 51 C-rated buildings (39%) have an asset rating of 51 to 60, within 10 points of band B: 1.0m sq ft (93,156 m²) of floorspace. Across England and Wales it's 37%.
- General industrial (B2) makes up 59% of its buildings over 1,000 m², against 42% across England and Wales.
- In the 12 months to 30 Sep 2026, 46 industrial and warehouse buildings of any size here had an EPC lodged to be let and 13 for a marketed sale, 59 in all: the 3rd most of 22 local authorities in Wales.
- The recommendation lodged most often on its certificates rated C to G is “Consider replacing T8 lamps with retrofit T5 conversion kit” (EPC-L5), on 86 of 109 buildings.
Every rating, A+ to G
Caerphilly's 137 industrial and warehouse buildings over 1,000 m² by latest EPC rating, beside Wales and the whole of England and Wales.
By latest EPC rating
Share is of buildings over 1,000 m² in each area.
| Rating | Buildings | Floor area | Share | Wales | England and Wales |
|---|---|---|---|---|---|
| A+ | 0 | 0 sq ft0 m² | 0% | 1% | 2% |
| A | 7 | 619k sq ft57,499 m² | 5% | 5% | 10% |
| B | 21 | 782k sq ft72,689 m² | 15% | 17% | 19% |
| C | 51 | 2.2m sq ft207,706 m² | 37% | 40% | 36% |
| D | 41 | 1.5m sq ft134,833 m² | 30% | 26% | 22% |
| E | 14 | 805k sq ft74,767 m² | 10% | 9% | 9% |
| F | 2 | 232k sq ft21,520 m² | 1% | 1% | 1% |
| G | 1 | 16k sq ft1,476 m² | 1% | 2% | 2% |
Within 10 points of B
Rated C with an asset rating of 51 to 60. Band B ends at 50.
20 buildings
Of 51 rated C (39%), with 1.0m sq ft (93,156 m²) of floorspace. England and Wales: 37% of C-rated buildings.
By building size
Floor area as declared on the EPC.
| Floor area | Buildings | Rated B or better | C to E floor area |
|---|---|---|---|
| Over 1,000 to 5,000 m² | 103 | 21%22 of 103 | 1.9m sq ft175,950 m² |
| Over 5,000 to 10,000 m² | 20 | 10%2 of 20 | 1.3m sq ft122,343 m² |
| Over 10,000 m² | 14 | 29%4 of 14 | 1.3m sq ft119,013 m² |
Certificates and lettings
An EPC lasts 10 years, and a valid one is needed to let or sell. We estimate expiry as the lodgement date plus 10 years.
When the certificates lapse
Buildings over 1,000 m², by when their latest EPC lapses, at 30 Sep 2026.
| EPC lapses | All buildings | Rated C to G | C to G floor area |
|---|---|---|---|
| Already lapsed | 32 | 32 | 1.5m sq ft136,468 m² |
| Rest of 2026 | 4 | 4 | 291k sq ft27,079 m² |
| In 2027 | 6 | 4 | 206k sq ft19,176 m² |
| In 2028 | 7 | 7 | 297k sq ft27,547 m² |
| In 2029 | 14 | 13 | 763k sq ft70,846 m² |
| In 2030 | 5 | 5 | 131k sq ft12,199 m² |
| 2031 or later | 69 | 44 | 1.6m sq ft146,987 m² |
New EPCs in the last year
Industrial and warehouse buildings of any size whose latest EPC was lodged in the 12 months to 30 Sep 2026, by the reason on the certificate.
- To let
- 46buildings
- Marketed sale
- 13buildings
- New build
- 1building
- Other reasons
- 10buildings
70 in all: 66% to let, against 56% across England and Wales. How the daily feed works
Uses, heating and recommendations
What the buildings are used for, how they're heated, and what assessors recommended on the certificates of those rated C to G.
By use
Use from the EPC's property type.
| Use | Buildings | B or better | C to E | F or G | C to E floor area |
|---|---|---|---|---|---|
| Storage and distribution (B8) | 56 | 18 | 37 | 1 | 1.2m sq ft110,262 m² |
| General industrial (B2) | 81 | 10 | 69 | 2 | 3.3m sq ft307,044 m² |
By main heating fuel
As recorded on each building's latest EPC.
| Main heating fuel | Buildings | Share | England and Wales |
|---|---|---|---|
| Natural gas | 80 | 58% | 53% |
| Grid supplied electricity | 41 | 30% | 37% |
| Other | 6 | 4% | 4% |
| Biomass | 4 | 3% | 1% |
| Oil | 4 | 3% | 4% |
| LPG | 2 | 1% | 1% |
What assessors recommend
The five most common on the latest certificates of its 109 buildings rated C to G, in the register's wording. A recommendation is the assessor's, not a requirement.
- 01
Consider replacing T8 lamps with retrofit T5 conversion kit.
EPC-L5. On 86 of 109 buildings (79%)
- 02
Introduce HF (high frequency) ballasts for fluorescent tubes: Reduced number of fittings required.
EPC-L7. On 78 of 109 buildings (72%)
- 03
Consider installing solar water heating.
EPC-R3. On 71 of 109 buildings (65%)
- 04
Consider installing building mounted wind turbine(s).
EPC-R2. On 63 of 109 buildings (58%)
- 05
Consider installing PV.
EPC-R4. On 63 of 109 buildings (58%)
How Caerphilly compares
Caerphilly has 0.4% of the industrial floorspace rated C to E in England and Wales. 80% of its buildings over 1,000 m² are below B, against 78% across Wales and 70% nationally.
Against the region and the country
| Area | Over 1,000 m² | Rated C to E | C to E floor area | Rated F or G | Share below B |
|---|---|---|---|---|---|
| Caerphilly | 137 | 106 | 4.5m sq ft417,306 m² | 3 | 80% |
| Wales | 1,738 | 1,295 | 55.9m sq ft5,191,184 m² | 54 | 78% |
| England and Wales | 38,148 | 25,619 | 1.01bn sq ft94,020,657 m² | 1,037 | 70% |
Nearby in the Wales ranking
| Rank | Local authority | C to E floor area |
|---|---|---|
| 2 | Newport | 5.2m sq ft478,755 m² |
| 3 | Bridgend | 5.0m sq ft469,098 m² |
| 4 | Caerphilly | 4.5m sq ft417,306 m² |
| 5 | Wrexham | 4.2m sq ft393,385 m² |
| 6 | Rhondda Cynon Taf | 4.1m sq ft378,425 m² |
What the 2031 proposal means
In June 2026 the government said it intends that privately rented non-domestic buildings over 1,000 m² reach EPC B from 2031, where cost effective. It needs secondary legislation, so for now it's a proposal, not law. What the proposal means
C to E: fine today, short of B
Caerphilly has 106 buildings over 1,000 m² rated C to E. They meet today's E minimum, but would fall short of B if the proposal becomes law while they're let.F or G: below the minimum already
3 buildings in Caerphilly are rated F or G. If let, they already need an improvement or a registered exemption under today's rules.Where cost effective, and only when let
The 7-year payback test and the exemptions remain. Owner-occupied buildings are counted too, as an EPC can't say whether a building is let. Local weights and measures authorities enforce the rules. MEES in plain EnglishRatings change at renewal
65 of Caerphilly's buildings rated C to G have an EPC that has lapsed or is estimated to lapse before 2031. Each needs a new certificate before it's let or sold, and the new rating may differ.
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