Building Energy Ratings in Co. Kildare
69,658 certificates · median 146 kWh/m²/yr · rank 4 of 52 counties on the share rated B3 or better
Half of the dwellings rated in Co. Kildare use more than 146 kWh/m²/yr.
The national median is 178 kWh/m²/yr. 53.2% of the certificates on the 2009 scale are B3 or better; 9.8% are E, F or G.
Pro accessThe datasetA specific request
Ratings
2009 scale, A1 to E2 — 62,895 certificates
| Rating | Certificates | Share |
|---|---|---|
| A1 | 1,756 | 2.8% |
| A2 | 13,737 | 21.8% |
| A3 | 6,605 | 10.5% |
| B1 | 2,301 | 3.7% |
| B2 | 3,437 | 5.5% |
| B3 | 5,649 | 9.0% |
| C1 | 6,191 | 9.8% |
| C2 | 6,397 | 10.2% |
| C3 | 5,526 | 8.8% |
| D1 | 4,760 | 7.6% |
| D2 | 3,510 | 5.6% |
| E1 | 1,729 | 2.7% |
| E2 | 1,297 | 2.1% |
2026 scale, A0 to E — 3,707 certificates
| Rating | Certificates | Share |
|---|---|---|
| A0 | 717 | 19.3% |
| A | 610 | 16.5% |
| B | 1,311 | 35.4% |
| C | 777 | 21.0% |
| D | 199 | 5.4% |
| E | 93 | 2.5% |
F and G — the same on both scales
| Rating | Certificates | Share of all certificates |
|---|---|---|
| F | 1,262 | 1.8% |
| G | 1,794 | 2.6% |
⚠️ 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 | 69,658 |
| Median energy use | 146 kWh/m²/yr |
| Median CO₂ | 30.3 kg CO₂/m²/yr |
| Median floor area | 113 m² |
| Median wall U-value | 0.37 W/m²K |
| Median roof U-value | 0.16 W/m²K |
| Median floor U-value | 0.36 W/m²K |
| Median window U-value | 2.20 W/m²K |
| Median heating system efficiency | 91% |
| Certificates with solar PV | 1,228 (1.8%) |
| Median renewable energy ratio | 0.26 |
| National median energy use | 178 kWh/m²/yr |
By period of construction
| Built | Certificates | Median kWh/m²/yr | Median wall U-value |
|---|---|---|---|
| before 1900 | 676 | 345 | 1.47 |
| 1900–1944 | 2,391 | 320 | 1.37 |
| 1945–1969 | 3,108 | 273 | 1.02 |
| 1970–1979 | 6,298 | 230 | 0.94 |
| 1980–1990 | 6,191 | 202 | 0.59 |
| 1991–1999 | 9,299 | 187 | 0.55 |
| 2000–2004 | 10,100 | 181 | 0.55 |
| 2005–2009 | 9,218 | 150 | 0.37 |
| 2010–2018 | 5,434 | 56 | 0.19 |
| 2019 or later | 16,943 | 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 | 27,318 | — | — |
| Detached house | 19,210 | — | — |
| Mid-terrace house | 7,109 | — | — |
| End of terrace house | 4,695 | — | — |
| Ground-floor apartment | 4,033 | — | — |
| Top-floor apartment | 3,514 | — | — |
| Mid-floor apartment | 1,826 | — | — |
| Maisonette | 1,154 | — | — |
| House | 676 | — | — |
| Apartment | 87 | — | — |
Main space heating fuel
| Fuel | Certificates | Share | Median kWh/m²/yr |
|---|---|---|---|
| Mains Gas | 26,419 | 37.9% | — |
| Electricity | 22,155 | 31.8% | — |
| Heating Oil | 19,285 | 27.7% | — |
| Solid Multi-Fuel | 787 | 1.1% | — |
| Bulk LPG (propane or butane) | 415 | 0.6% | — |
| Manufactured Smokeless Fuel | 218 | 0.3% | — |
| Wood Pellets (bulk supply for | 83 | 0.1% | — |
| Sod Peat | 60 | 0.1% | — |
| Bottled LPG | 37 | 0.1% | — |
| House Coal | 34 | 0.0% | — |
One certificate is one assessment of one dwelling, not one dwelling: a home rated twice appears twice. How this is counted.