Layer Estimates:

Layer: UK Power Networks Primary Substation Distribution Areas (ID:0)
Count: 19
Extent:

XMin: 542051.4
YMin: 210217.199999999
XMax: 573612.5
YMax: 246252.9
Spatial Reference: 27700 (27700)

Layer: District_UDC (ID:1)
Count: 1
Extent:

XMin: 542051.4
YMin: 210217.199999999
XMax: 573612.5
YMax: 246252.899999999
Spatial Reference: 27700 (27700)

Layer: ukpn_primary_postcode_area (ID:2)
Count: 806
Extent:

XMin: 458301.0009
YMin: 95067.2884999998
XMax: 655988.997
YMax: 347407.336299999
Spatial Reference: 27700 (27700)

Layer: ukpn-local-authorities (ID:3)
Count: 133
Extent:

XMin: 418553.425664969
YMin: 91519.5871869437
XMax: 665605.467116354
YMax: 419924.761668508
Spatial Reference: 27700 (27700)