In ancient city of Rome, it was more expensive to rent a room in multi-story building if the landlords lived in it as well. It showed that landlord was brave enough that the building will not fall one day onto themselves.
checks
My landlord does not live in my building T_T
Wait, it's not even a person.
According to Zillow my apartment is owned by a cat with 47,000 followers
same rule applied during housing boom in taiwan in the 1970s, my parents bought an apartment as the construction company had their headquarter in the very same building on the 2nd floor!