Layer Estimates:

Layer: BuildingFootprints (ID:0)
Count: 207922
Extent:

XMin: -8669156.38287564
YMin: 4469547.95447098
XMax: -8600599.78334584
YMax: 4517516.08126607
Spatial Reference: 102100 (3857)

Layer: ImperviousAreas (ID:1)
Count: 166829
Extent:

XMin: -8669163.51196407
YMin: 4469409.1796132
XMax: -8601060.02186399
YMax: 4517861.98220009
Spatial Reference: 102100 (3857)