Building Energy Ratings in Dublin 10
6,635 certificates · median 188 kWh/m²/yr · rank 29 of 52 counties on the share rated B3 or better
Half of the dwellings rated in Dublin 10 use more than 188 kWh/m²/yr.
The national median is 178 kWh/m²/yr. 35.5% of the certificates on the 2009 scale are B3 or better; 20.1% are E, F or G.
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Ratings
2009 scale, A1 to E2 — 5,836 certificates
| Rating | Certificates | Share |
|---|---|---|
| A1 | 6 | 0.1% |
| A2 | 1,023 | 17.5% |
| A3 | 368 | 6.3% |
| B1 | 86 | 1.5% |
| B2 | 158 | 2.7% |
| B3 | 429 | 7.4% |
| C1 | 715 | 12.3% |
| C2 | 741 | 12.7% |
| C3 | 641 | 11.0% |
| D1 | 598 | 10.2% |
| D2 | 471 | 8.1% |
| E1 | 326 | 5.6% |
| E2 | 274 | 4.7% |
2026 scale, A0 to E — 245 certificates
| Rating | Certificates | Share |
|---|---|---|
| A0 | 38 | 15.5% |
| A | 67 | 27.3% |
| B | 29 | 11.8% |
| C | 60 | 24.5% |
| D | 33 | 13.5% |
| E | 18 | 7.3% |
F and G — the same on both scales
| Rating | Certificates | Share of all certificates |
|---|---|---|
| F | 296 | 4.5% |
| G | 258 | 3.9% |
⚠️ The two scales are shown apart on purpose: adding a « B » from the 2026 scale to « B1+B2+B3 » from the 2009 scale would produce a number that exists nowhere. F and G belong to both, so they are counted in neither distribution and shown on their own. How the two scales compare.
What the certificates measure
| Certificates | 6,635 |
| Median energy use | 188 kWh/m²/yr |
| Median CO₂ | 36.5 kg CO₂/m²/yr |
| Median floor area | 78 m² |
| Median wall U-value | 0.36 W/m²K |
| Median roof U-value | 0.19 W/m²K |
| Median floor U-value | 0.56 W/m²K |
| Median window U-value | 2.41 W/m²K |
| Median heating system efficiency | 90% |
| Certificates with solar PV | 32 (0.5%) |
| Median renewable energy ratio | 0.00 |
| National median energy use | 178 kWh/m²/yr |
By period of construction
| Built | Certificates | Median kWh/m²/yr | Median wall U-value |
|---|---|---|---|
| before 1900 | 25 | 359 | 1.26 |
| 1900–1944 | 469 | 244 | 0.60 |
| 1945–1969 | 2,846 | 237 | 0.87 |
| 1970–1979 | 372 | 199 | 0.40 |
| 1980–1990 | 772 | 189 | 0.34 |
| 1991–1999 | 251 | 185 | 0.31 |
| 2000–2004 | 414 | 191 | 0.55 |
| 2005–2009 | 173 | 164 | 0.37 |
| 2010–2018 | 158 | 63 | 0.15 |
| 2019 or later | 1,155 | 41 | 0.26 |
Periods with fewer than 11 certificates are not shown separately.
By dwelling type
| Type | Certificates | Median kWh/m²/yr | Median floor area (m²) |
|---|---|---|---|
| Mid-terrace house | 2,794 | — | — |
| End of terrace house | 1,675 | — | — |
| Mid-floor apartment | 919 | — | — |
| Semi-detached house | 447 | — | — |
| Top-floor apartment | 324 | — | — |
| Ground-floor apartment | 307 | — | — |
| Maisonette | 85 | — | — |
| Detached house | 66 | — | — |
| House | 16 | — | — |
Main space heating fuel
| Fuel | Certificates | Share | Median kWh/m²/yr |
|---|---|---|---|
| Mains Gas | 4,748 | 71.6% | — |
| Electricity | 1,727 | 26.0% | — |
| Heating Oil | 89 | 1.3% | — |
| Manufactured Smokeless Fuel | 39 | 0.6% | — |
One certificate is one assessment of one dwelling, not one dwelling: a home rated twice appears twice. How this is counted.