Layer #1 - add an airport using FSCloudPort ...
Layer #2 - use AeroScenery to add a level 9 tile of 2m resolution scenery ...
Layer #3 - use AeroScenery to add 0.5m high resolution scenery at the airport (2 small level 11 tiles) - noticeable near the airport ...
Layer #4 - use OpenStreetMaps and ScenProc to create some houses, buildings, plants, and lighting to cover the level 9 tile ...
Layer #5 - use OpenStreetMaps and ScenProc to create more variable height houses & buildings for the 10nm x 10nm area surrounding the airport ...
Layer #6 - use FSET and ScenProc to create 500,000 trees based on photoscenery for the 10nm x 10nm area surrounding the airport ...
And finally ...
Layer #7 - use OpenStreetMaps and ScenProc to create tall buildings in a small rectangular area along a tollway that passes by the right side of the airport ...
How-To Docs
Layer7 (Tall Buildings) How-To.pdf