Layer Estimates:

Layer: Listed_Buildings (ID:0)
Count: 67372
Extent:

XMin: -927359.868170219
YMin: 7275147.96070965
XMax: -79152.7156771785
YMax: 8593867.07109076
Spatial Reference: 102100 (3857)

Layer: Listed_Buildings_boundaries (ID:1)
Count: 663
Extent:

XMin: -881726.800178762
YMin: 7288121.62689135
XMax: -94764.7446183573
YMax: 8572706.13085268
Spatial Reference: 102100 (3857)