Once the old garage was removed we created a new pad for the new 3 car garage. We debated building on top of the old cement pad, but decided that was too risky, and it wasn’t in the right place.
So, we called our friendly survey company and had our property line marked out. Given the research we did on local building codes we knew how close to the property line we could be, and we located the new pad so it was parallel to the alley property line. In the end we decided to put it back a bit more than the minimum so we had a bit more room to get in and out, and made the apron two feet long.
The pad itself was made of recycled crushed cement which was relatively inexpensive, and was quick as the contractor removing the garage and old pad could get it when he dumped the old cement.
Once leveled (more or less) we packed the new recycled cement with our Toyota Highlander. I watered it down with a sprinkler, then drove back and forth so the tires overlapped as I went. It did a really great job, and was hard as a rock once dry. Overall one of the best foundations I have seen so we were off to a good start.