I was just saying that we had to adapt to achieve the current building code, so we had to over-engineer the houses.
For example, on the houses, because of the way the code is written, you need to have fire separation on party walls between units. Common sense would tell you that concrete is a fire separation, but since no part of the code talks about 3-D printed concrete walls, we had to put out money to put fire separation drywall on top of the concrete walls.
That was just on the party walls, but these are the little things where, as the code improves and these technologies are accepted into the code, we'll be able to save money and time.