In any -ism.you could build an apartment on your own land[1]. It's capitalism that turns it into capital which allows you to rent it out or sell it as property.
1. to the extent that land can be owned under a given mode of production.
Tenants existed before capitalism. Marx discusses this in Capital when he discusses the transition from feudalism to capitalism. The ownership class changed (from the Lord to the landlord) but the relationship continues to exist. The idea of using an asset to generate returns on the asset is indeed a capitalist concept but housing is but one aspect of that.
It's in important distinction because even post-capitalist dialectics need an answer for the need of housing.
If wouldn't be capitalism if we demanded you let us build on your land, but it's certainly not capitalism when you won't let us build on our land.