Do you not live in your house? The way I read their comment was 'If you own a house then you have high tax. If live in house 1 allotment of rebates if you also own the house equal to 1 house of extra tax.'

If the "vagrants" dont own the house then they get nothing. If you don't live in the house you get no extra. Probably means that small 1-4 family rented dwellings will be come impossible but larger apartment complexes should still be viable.

I was responding to the part about nobody being able to own land.

Not being able to own land does not mean you cannot be sole occupant. It's just that you'd lease it from government (aka the rest of society), rather than owning it outright in perpetuity (and pass to your offspring), to do as you wish with, etc.