Building Energy Ratings in Dublin 11
17,863 certificates · median 171 kWh/m²/yr · rank 15 of 52 counties on the share rated B3 or better
Half of the dwellings rated in Dublin 11 use more than 171 kWh/m²/yr.
The national median is 178 kWh/m²/yr. 42.3% of the certificates on the 2009 scale are B3 or better; 15.5% are E, F or G.
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Ratings
2009 scale, A1 to E2 — 16,047 certificates
| Rating | Certificates | Share |
|---|---|---|
| A1 | 158 | 1.0% |
| A2 | 1,958 | 12.2% |
| A3 | 1,221 | 7.6% |
| B1 | 307 | 1.9% |
| B2 | 1,069 | 6.7% |
| B3 | 2,080 | 13.0% |
| C1 | 2,009 | 12.5% |
| C2 | 1,794 | 11.2% |
| C3 | 1,539 | 9.6% |
| D1 | 1,403 | 8.7% |
| D2 | 1,177 | 7.3% |
| E1 | 739 | 4.6% |
| E2 | 593 | 3.7% |
2026 scale, A0 to E — 723 certificates
| Rating | Certificates | Share |
|---|---|---|
| A0 | 112 | 15.5% |
| A | 85 | 11.8% |
| B | 209 | 28.9% |
| C | 189 | 26.1% |
| D | 73 | 10.1% |
| E | 55 | 7.6% |
F and G — the same on both scales
| Rating | Certificates | Share of all certificates |
|---|---|---|
| F | 615 | 3.4% |
| G | 478 | 2.7% |
⚠️ 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 | 17,863 |
| Median energy use | 171 kWh/m²/yr |
| Median CO₂ | 32.6 kg CO₂/m²/yr |
| Median floor area | 82 m² |
| Median wall U-value | 0.37 W/m²K |
| Median roof U-value | 0.19 W/m²K |
| Median floor U-value | 0.43 W/m²K |
| Median window U-value | 2.20 W/m²K |
| Median heating system efficiency | 90% |
| Certificates with solar PV | 119 (0.7%) |
| 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 | 33 | 473 | 1.44 |
| 1900–1944 | 484 | 276 | 1.40 |
| 1945–1969 | 5,075 | 235 | 1.37 |
| 1970–1979 | 2,727 | 197 | 0.39 |
| 1980–1990 | 951 | 198 | 0.33 |
| 1991–1999 | 400 | 207 | 0.55 |
| 2000–2004 | 1,807 | 180 | 0.55 |
| 2005–2009 | 3,517 | 150 | 0.37 |
| 2010–2018 | 738 | 54 | 0.16 |
| 2019 or later | 2,131 | 38 | 0.18 |
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 | 5,098 | — | — |
| Mid-floor apartment | 3,102 | — | — |
| Semi-detached house | 2,908 | — | — |
| End of terrace house | 2,816 | — | — |
| Top-floor apartment | 1,562 | — | — |
| Ground-floor apartment | 1,499 | — | — |
| Detached house | 421 | — | — |
| Maisonette | 370 | — | — |
| House | 70 | — | — |
| Apartment | 12 | — | — |
Main space heating fuel
| Fuel | Certificates | Share | Median kWh/m²/yr |
|---|---|---|---|
| Mains Gas | 12,272 | 68.7% | — |
| Electricity | 3,600 | 20.2% | — |
| Heating Oil | 658 | 3.7% | — |
| Manufactured Smokeless Fuel | 53 | 0.3% | — |
| Solid Multi-Fuel | 24 | 0.1% | — |
| Wood Pellets (bulk supply for | 15 | 0.1% | — |
One certificate is one assessment of one dwelling, not one dwelling: a home rated twice appears twice. How this is counted.