Wales
MEES 2031 exposure in Swansea
82 of the 112 industrial and warehouse buildings over 1,000 m² in Swansea with an EPC are rated C to E: 3.4m sq ft (318,201 m²) of floorspace that meets today's E minimum but falls short of the proposed EPC B standard.
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Swansea in figures
EPC register, snapshot 30 Sep 2026
- Rated C to E
- 3.4m sq ft318,201 m² in 82 buildings
- Rated F or G
- 4 buildings188k sq ft (17,443 m²), below today's E minimum
- Rated A+ to B
- 26 buildingsAlready at the proposed standard
- Share below B
- 77%Of 112 buildings over 1,000 m². England and Wales: 70%
Swansea has the 97th most floorspace rated C to E of 316 local authorities in England and Wales, and the 8th most of 22 in Wales.
EPC rating mix
Share of buildings over 1,000 m², by latest EPC rating
- Swansea112 buildings23%73%
- 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 Swansea
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: 40% in buildings of 1,000 to 5,000 m², 17% in buildings of 5,000 to 10,000 m², 43% in buildings over 10,000 m².
- Unusually, its smaller buildings do better: 26% of those of 1,000 to 5,000 m² are rated B or better, against 10% of the 10 over 10,000 m².
- 51 of its 86 buildings rated C to G (59%) have an EPC that has lapsed or is estimated to lapse before 2031, against 54% across England and Wales; 23 have already lapsed.
- 15 of its 44 C-rated buildings (34%) have an asset rating of 51 to 60, within 10 points of band B: 569k sq ft (52,859 m²) of floorspace. Across England and Wales it's 37%.
- In the 12 months to 30 Sep 2026, 18 industrial and warehouse buildings of any size here had an EPC lodged to be let and 10 for a marketed sale, 28 in all: the 8th most of 22 local authorities in Wales.
- The recommendation lodged most often on its certificates rated C to G is “Consider installing building mounted wind turbine(s)” (EPC-R2), on 65 of 86 buildings.
Every rating, A+ to G
Swansea's 112 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 | 3 | 94k sq ft8,760 m² | 3% | 5% | 10% |
| B | 23 | 730k sq ft67,799 m² | 21% | 17% | 19% |
| C | 44 | 1.5m sq ft138,153 m² | 39% | 40% | 36% |
| D | 28 | 1.3m sq ft119,313 m² | 25% | 26% | 22% |
| E | 10 | 654k sq ft60,735 m² | 9% | 9% | 9% |
| F | 0 | 0 sq ft0 m² | 0% | 1% | 1% |
| G | 4 | 188k sq ft17,443 m² | 4% | 2% | 2% |
Within 10 points of B
Rated C with an asset rating of 51 to 60. Band B ends at 50.
15 buildings
Of 44 rated C (34%), with 569k sq ft (52,859 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 | 94 | 26%24 of 94 | 1.4m sq ft126,156 m² |
| Over 5,000 to 10,000 m² | 8 | 13%1 of 8 | 578k sq ft53,685 m² |
| Over 10,000 m² | 10 | 10%1 of 10 | 1.5m sq ft138,360 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 | 24 | 23 | 1.2m sq ft112,706 m² |
| Rest of 2026 | 2 | 2 | 56k sq ft5,204 m² |
| In 2027 | 6 | 6 | 121k sq ft11,203 m² |
| In 2028 | 5 | 5 | 237k sq ft21,994 m² |
| In 2029 | 9 | 8 | 367k sq ft34,066 m² |
| In 2030 | 8 | 7 | 190k sq ft17,659 m² |
| 2031 or later | 58 | 35 | 1.4m sq ft132,812 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
- 18buildings
- Marketed sale
- 10buildings
- New build
- 0buildings
- Other reasons
- 19buildings
47 in all: 38% 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) | 64 | 15 | 48 | 1 | 1.5m sq ft143,404 m² |
| General industrial (B2) | 48 | 11 | 34 | 3 | 1.9m sq ft174,797 m² |
By main heating fuel
As recorded on each building's latest EPC.
| Main heating fuel | Buildings | Share | England and Wales |
|---|---|---|---|
| Natural gas | 48 | 43% | 53% |
| Grid supplied electricity | 43 | 38% | 37% |
| Other | 14 | 13% | 4% |
| Oil | 5 | 4% | 4% |
| Biomass | 2 | 2% | 1% |
What assessors recommend
The five most common on the latest certificates of its 86 buildings rated C to G, in the register's wording. A recommendation is the assessor's, not a requirement.
- 01
Consider installing building mounted wind turbine(s).
EPC-R2. On 65 of 86 buildings (76%)
- 02
Consider installing solar water heating.
EPC-R3. On 62 of 86 buildings (72%)
- 03
Consider replacing T8 lamps with retrofit T5 conversion kit.
EPC-L5. On 53 of 86 buildings (62%)
- 04
Consider installing PV.
EPC-R4. On 53 of 86 buildings (62%)
- 05
Carry out a pressure test, identify and treat identified air leakage. Enter result in EPC calculation.
EPC-E7. On 46 of 86 buildings (53%)
How Swansea compares
Swansea has 0.3% of the industrial floorspace rated C to E in England and Wales. 77% 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 |
|---|---|---|---|---|---|
| Swansea | 112 | 82 | 3.4m sq ft318,201 m² | 4 | 77% |
| 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 |
|---|---|---|
| 6 | Rhondda Cynon Taf | 4.1m sq ft378,425 m² |
| 7 | Cardiff | 3.5m sq ft322,635 m² |
| 8 | Swansea | 3.4m sq ft318,201 m² |
| 9 | Neath Port Talbot | 3.3m sq ft307,641 m² |
| 10 | Torfaen | 2.6m sq ft244,199 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
Swansea has 82 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
4 buildings in Swansea 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
51 of Swansea'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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