Sorry it seems family homes aren't excluded.
Won't work. The rent seekers in the economy will instantly suck up any extra income anybody has. Better to actually provide essentials directly to citizens, start with utilities.
They will already be paying more tax from the land tax. The idea being to make people feel being a land lord is no longer an easy ride and get them to invest in something else, removing speculation and artificial supply limits (during market booms, houses often sit empty. Also, this makes holiday homes harder to justify).
If they actually get this in place then it's the first step towards the biggest wellbeing enhancement the country will ever see: the gutting of the inhumanity that is WINZ. If we just hand the money to people instead of making them dance for us, that will surely have positive lasting impacts.