About making cities tiles

About making cities tiles

Hi all,

I have been making some small flash games for some time now but never really managed to find a good way to make tiles for modern/future cities, I mean cities that look like this for instance

 

https://youtu.be/JE9SYKDGPMU?t=1118

 

So basically these are cities that look like 3d but of course considering the technology and the way these game are made are purelly squared 2d tiles, anyone can show me an example sheet or trace maybe over that same game a grid showing how the tiles are divided? because no matter how I look at it I never really get it and I know this has to be real simple question for you who are expert in 2d tile making but as said I cant get my head around it.

 

Thanks a lot for your help or any clue regarding this =)

 

Edit: What I think they used due technology in that era should be squared tiles without alpha or overlapping so thats what I cant get to see to produce a seamless result