Karl nodded in understanding. "I have one more recommendation, not a necessity, but something that was quite popular at home.
Building the base deep underground stabilizes the structure. But as those levels aren't really suitable for apartments, you can put in storage areas for shops on the main floor, or even an entire shopping area on the ground floor and first basement, with storage underneath. Then put common areas on the second floor, and start the apartments from the third floor.
At street level, everyone will see the shops, with more hidden behind the ones on the street. And it won't feel like they have to go across the city to get essentials."
The Exchequer snapped his fingers. "Like how I order everything to be delivered to the Castle instead of walking to the market to get them!"
The Architect facepalmed at the bit of new information about the man's laziness. Or perhaps his shut in nature.