Building Energy Ratings in Dublin 3
12,432 certificates · median 217 kWh/m²/yr · rank 44 of 52 counties on the share rated B3 or better
Half of the dwellings rated in Dublin 3 use more than 217 kWh/m²/yr.
The national median is 178 kWh/m²/yr. 30.9% of the certificates on the 2009 scale are B3 or better; 34.8% are E, F or G.
Pro accessThe datasetA specific request
Ratings
2009 scale, A1 to E2 — 10,072 certificates
| Rating | Certificates | Share |
|---|---|---|
| A1 | 74 | 0.7% |
| A2 | 976 | 9.7% |
| A3 | 496 | 4.9% |
| B1 | 198 | 2.0% |
| B2 | 461 | 4.6% |
| B3 | 911 | 9.0% |
| C1 | 1,007 | 10.0% |
| C2 | 1,037 | 10.3% |
| C3 | 1,084 | 10.8% |
| D1 | 1,073 | 10.7% |
| D2 | 1,187 | 11.8% |
| E1 | 834 | 8.3% |
| E2 | 734 | 7.3% |
2026 scale, A0 to E — 482 certificates
| Rating | Certificates | Share |
|---|---|---|
| A0 | 16 | 3.3% |
| A | 41 | 8.5% |
| B | 140 | 29.0% |
| C | 158 | 32.8% |
| D | 70 | 14.5% |
| E | 57 | 11.8% |
F and G — the same on both scales
| Rating | Certificates | Share of all certificates |
|---|---|---|
| F | 783 | 6.3% |
| G | 1,095 | 8.8% |
⚠️ 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 | 12,432 |
| Median energy use | 217 kWh/m²/yr |
| Median CO₂ | 41.9 kg CO₂/m²/yr |
| Median floor area | 81 m² |
| Median wall U-value | 0.70 W/m²K |
| Median roof U-value | 0.25 W/m²K |
| Median floor U-value | 0.43 W/m²K |
| Median window U-value | 2.70 W/m²K |
| Median heating system efficiency | 91% |
| Certificates with solar PV | 70 (0.6%) |
| 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 | 740 | 299 | 1.54 |
| 1900–1944 | 4,250 | 288 | 1.51 |
| 1945–1969 | 1,602 | 244 | 1.44 |
| 1970–1979 | 510 | 237 | 1.10 |
| 1980–1990 | 1,160 | 221 | 0.60 |
| 1991–1999 | 516 | 225 | 0.55 |
| 2000–2004 | 758 | 198 | 0.57 |
| 2005–2009 | 1,426 | 169 | 0.37 |
| 2010–2018 | 334 | 67 | 0.25 |
| 2019 or later | 1,136 | 40 | 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 | 3,340 | — | — |
| Mid-floor apartment | 2,351 | — | — |
| Semi-detached house | 1,982 | — | — |
| Ground-floor apartment | 1,491 | — | — |
| Top-floor apartment | 1,398 | — | — |
| End of terrace house | 1,055 | — | — |
| Detached house | 579 | — | — |
| Maisonette | 139 | — | — |
| House | 56 | — | — |
| Apartment | 28 | — | — |
Main space heating fuel
| Fuel | Certificates | Share | Median kWh/m²/yr |
|---|---|---|---|
| Mains Gas | 7,106 | 57.2% | — |
| Electricity | 4,090 | 32.9% | — |
| Heating Oil | 436 | 3.5% | — |
| Manufactured Smokeless Fuel | 74 | 0.6% | — |
| House Coal | 17 | 0.1% | — |
| Solid Multi-Fuel | 17 | 0.1% | — |
One certificate is one assessment of one dwelling, not one dwelling: a home rated twice appears twice. How this is counted.