British National Grid (BNG), EPSG: 27700
Origin: (0,0) bottom-left
Bounds: (0,0) (700000,1300000)
Tile size: 256 x 256 pixels
Zoom stacks in the Alternative British Grid (BNG2) have fixed x2 scale jumps, which is required for compatibility with some GIS software.
| Zoom | Scale | Resolution | Tile Width / Height (metres) | Source |
|---|---|---|---|---|
| 0 | 20,480,000 | 5734.4 | 1,468,006.4 | Transparent |
| 1 | 10,240,000 | 2867.2 | 734,003.2 | Transparent |
| 2 | 5,120,000 | 1433.6 | 367,001.6 | Transparent |
| 3 | 2,560,000 | 716.8 | 183,500.8 | Transparent |
| 4 | 1,280,000 | 358.4 | 91,750.4 | Transparent |
| 5 | 640,000 | 179.2 | 45,875.2 | Transparent |
| 6 | 320,000 | 89.6 | 22,937.6 | Transparent |
| 7 | 160,000 | 44.8 | 11,468.8 | Transparent |
| 8 | 80,000 | 22.4 | 5,734.4 | Transparent |
| 9 | 40,000 | 11.2 | 2,867.2 | Transparent |
| 10 | 20,000 | 5.6 | 1,433.6 | Transparent |
| 11 | 10,000 | 2.8 | 716.8 | EPC Efficency - colour disc only |
| 12 | 5,000 | 1.4 | 358.4 | EPC Efficency - colour disc only |
| 13 | 2,500 | 0.7 | 179.2 | EPC Efficency - colour disc only |
| 14 | 1,250 | 0.35 | 89.6 | EPC Efficency |
| 15 | 625 | 0.175 | 44.8 | EPC Efficency |
| 16 | 312.5 | 0.0875 | 22.4 | EPC Efficency |
Updated quarterly. This layer works well on a projection-matched greycale basemap such as m0230. An OpenLayers-based overlay demo is available.
As colour is used in this layer to signify EPC efficency function, no greyscale version is provided.
This layer uses standardised colours for energey efficiency ratings.
EPC - England & Wales https://epc.opendatacommunities.org/
EPC – Scotland https://www.scottishepcregister.org.uk/