Things You'll Need
Instructions
Collect Blueprints to build with. The "I Am the City" Achievement is reached when 100 buildings you've constructed are standing. The easiest building to mass produce is a house. So even if you have just one house Blueprint, it may be helpful to just start mass producing houses from there.
Continue on the storyline while mass producing houses. The storyline alone needs a minimum of 50 buildings standing in order to complete. So if you mass produce houses along with the mandatory buildings you must complete anyway, it should not take too much to achieve the status of 100 buildings standing.
Build in each of the three kingdoms you enter throughout the story. Building in just one kingdom will not allow sufficient room to efficiently erect 100 buildings. Plus, it helps to start over in a new kingdom with more resources available.