Here you go some scketches based on your brief where you can ask for any changes or make any suggestions.
I think it's a moder symbol to represent a building and it's various elements, and I've made the option with 4 colors too for the 4 companies/areas. f any sounds promising, even after contest ends submissions are possible for the 1st ranked designer.
Kind regards,
Claudia
(This comment references Entry #34)