Package: Blender 2.79

Render engine:
Cycles

Shaders:
Principled Cycles shader

Textures:
PNG and JPG

Texture sizes:
Hero items such as structure = 8K
Medium Range objects = 4K and 2048x2048
Close up items = 1024x1024

For ease of use, the file is split over layers within Blender:
Layer 1 - Apartments
Layer 2 - Roof elements (Air conditioning, solar panels, conduits, satellite or cell host tower, satellite dish and vents)
Layer 3 - Exterior walls only
Layer 4 - Gutters and down pipes
Layer 10 - Lights, cameras

Scene elements are split up in the following groups:
Apartments
building Structure
Cell Tower host
Lights and cameras
roof elements
Complete Building set (the building in it's entirety)

Thank you, enjoy the package and please rate the model!