Layer Estimates:

Layer: llc_sign_survey_points (ID:0)
Count: 74
Extent:

XMin: -27758.7395437015
YMin: 6688621.87536527
XMax: -14990.393949713
YMax: 6694994.7863353
Spatial Reference: 102100 (3857)

Layer: Boundary Line (ID:1)
Count: 1
Extent:

XMin: -57024.4147287623
YMin: 6672171.18860086
XMax: 34299.7739496597
YMax: 6745472.25426485
Spatial Reference: 102100 (3857)

Layer: LLC ERN (ID:2)
Count: 6680
Extent:

XMin: -56415.2873146689
YMin: 6673772.31946322
XMax: 32320.747668838
YMax: 6742910.09889624
Spatial Reference: 102100 (3857)

Layer: London Borough Boundaries v2 (ID:3)
Count: 34
Extent:

XMin: -57446.0301643698
YMin: 6670755.86515612
XMax: 38004.2684929412
YMax: 6745633.3862115
Spatial Reference: 102100 (3857)