New houses only give 1 pop each instead of 2-4 like it used to be before. Each homelands now supports up to 180 houses/residence buildigns. And Orcs have unlimited huts. Max pop is still 90 though...for now.
We didn`t add this yet, but in the next update getting more houses will boost your max resource storage, and Human taxes will start giving small tax income. And Orcish huts will get better at defending - try building house walls:D