The entrance to the government complex, as mentioned, would be abutting the massive rotunda at the end of the Southwest Avenue extension.
It would be covered by a Level 3 Wall, possibly with sentries. It was customizable so Althea changed it in a way that it didn't look so massive and imposing, and they also added a lot of crawling vines to soften the look.
They also made sure that there was a nice easement between the walls and the buildings, allowing for a lot of trees (some of which were colorful), so that the massive complex (and the relatively tall group of buildings) wouldn't look too massive and intimidating. Rather, it would visually fit well with the rest of the town.
