Building Energy Ratings in Dublin 16
14,033 certificates · median 166 kWh/m²/yr · rank 13 of 52 counties on the share rated B3 or better
Half of the dwellings rated in Dublin 16 use more than 166 kWh/m²/yr.
The national median is 178 kWh/m²/yr. 44.6% of the certificates on the 2009 scale are B3 or better; 10.1% are E, F or G.
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Ratings
2009 scale, A1 to E2 — 12,870 certificates
| Rating | Certificates | Share |
|---|---|---|
| A1 | 94 | 0.7% |
| A2 | 1,662 | 12.9% |
| A3 | 915 | 7.1% |
| B1 | 476 | 3.7% |
| B2 | 1,038 | 8.1% |
| B3 | 1,550 | 12.0% |
| C1 | 1,358 | 10.6% |
| C2 | 1,504 | 11.7% |
| C3 | 1,293 | 10.0% |
| D1 | 1,183 | 9.2% |
| D2 | 980 | 7.6% |
| E1 | 481 | 3.7% |
| E2 | 336 | 2.6% |
2026 scale, A0 to E — 715 certificates
| Rating | Certificates | Share |
|---|---|---|
| A0 | 72 | 10.1% |
| A | 81 | 11.3% |
| B | 258 | 36.1% |
| C | 214 | 29.9% |
| D | 56 | 7.8% |
| E | 34 | 4.8% |
F and G — the same on both scales
| Rating | Certificates | Share of all certificates |
|---|---|---|
| F | 301 | 2.1% |
| G | 147 | 1.0% |
⚠️ 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 | 14,033 |
| Median energy use | 166 kWh/m²/yr |
| Median CO₂ | 32.6 kg CO₂/m²/yr |
| Median floor area | 110 m² |
| Median wall U-value | 0.55 W/m²K |
| Median roof U-value | 0.25 W/m²K |
| Median floor U-value | 0.44 W/m²K |
| Median window U-value | 2.24 W/m²K |
| Median heating system efficiency | 90% |
| Certificates with solar PV | 201 (1.4%) |
| 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 | 32 | 359 | 1.80 |
| 1900–1944 | 168 | 267 | 1.25 |
| 1945–1969 | 1,686 | 218 | 1.34 |
| 1970–1979 | 3,561 | 210 | 1.10 |
| 1980–1990 | 2,084 | 190 | 0.60 |
| 1991–1999 | 1,437 | 188 | 0.55 |
| 2000–2004 | 1,006 | 171 | 0.55 |
| 2005–2009 | 1,358 | 142 | 0.37 |
| 2010–2018 | 1,195 | 53 | 0.18 |
| 2019 or later | 1,506 | 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) |
|---|---|---|---|
| Semi-detached house | 6,908 | — | — |
| Detached house | 1,857 | — | — |
| Mid-floor apartment | 1,514 | — | — |
| Mid-terrace house | 1,230 | — | — |
| Ground-floor apartment | 860 | — | — |
| End of terrace house | 821 | — | — |
| Top-floor apartment | 596 | — | — |
| Maisonette | 155 | — | — |
| House | 63 | — | — |
| Apartment | 29 | — | — |
Main space heating fuel
| Fuel | Certificates | Share | Median kWh/m²/yr |
|---|---|---|---|
| Mains Gas | 10,280 | 73.3% | — |
| Electricity | 2,030 | 14.5% | — |
| Heating Oil | 1,391 | 9.9% | — |
| Manufactured Smokeless Fuel | 14 | 0.1% | — |
One certificate is one assessment of one dwelling, not one dwelling: a home rated twice appears twice. How this is counted.