I think something needs to be done with the elite units. It's not normal for a bunch of elite units to literally demolish or instantly capture buildings. They should either be weakened, making them barely stronger than normal units, or the buildings and the buildings' resistance to capture should be significantly strengthened. A bunch of unkillable elite units make siege weapons useless - this is bad.
I would also like to see the number of vacant places for collecting resources as a multiple of 5. And starting with 5 women, one scout, 5 ranged warriors and 5 melee fighters will be much better.
There is a question about the presence of walls in Sparta. If I'm right, then the walls in Sparta appeared after its defeat by Macedonia, and before that Sparta did not have any walls. Maybe the developers should remove all types of walls from Sparta for historical accuracy?
I also saw that the Chinese placed two or more storey models of clay houses in their tombs. I think it would be nice for many nations to add two types of houses - a poor one-story house and a rich large two-story house, for example, in the city era. As you have already seen, there was no shortage of two-story houses in classical Athens. To be honest, I think all the Greek nations did not disdain two-story houses, neither the Spartans, nor the Macedonians, nor the Seleucids, nor the Ptolemies.
As far as I know, the wealth of the “poor” Ptolemaic houses was so great that not every rich man in Greece could afford to furnish a house like the houses of the Greeks of Egypt. That's what it says in the book Зелинский Ф.Ф. - История античной культуры (Modus vivendi) - 1995 (Zelinsky F.F. - History of ancient culture (Modus vivendi) - 1995).
Quotes from a book about Hellenistic period:
(The book itself and its text, if anyone is interested: http://az.lib.ru/z/zelinskij_f_f/text_0020.shtml I don't know if it's complete or not.)
Isn't it possible to do it like in The Sims, so that pressing a button removes the roofs, the next press removes the walls, leaving only the foundations of the building?