This patch has proposal to introduce cart_apartment by tech.
Since it was implemented in a borg expansion pack, it has been asked a lot to be implemented on vanilla.
https://wildfiregames.com/forum/index.php?/topic/28557-unused-atlas-entities/&tab=comments#comment-401602
Apartment gives:
- +50% health
- +3 garrison capacity
- +5 population bonus
- Proportional loot
It's basically like a small house + big house.
Need a tech for can upgrade to apartment. Tech cost 200 wood and 40 secs. Apartment cost 50 wood to upgrade.