Two MPs and party leaders who don't own homes, James Shaw from the Greens and David Seymour from Act lay the blame for the difficulty of home owning at the feet of those who have more than one home each.

Two MPs who don't own homes have attacked their landlord colleagues over housing.

While soaring house prices have seen home ownership rates fall, 25 MPs have been revealed to own about 30 rental houses.

Only 10 out of our 119 current MPs don't own any residential property, the latest register of MPs' financial interests has revealed.

JASON DORDAY/FAIRFAX NZ ACT leader David Seymour (pictured), along with and Green party co-leader James Shaw, have blasted MPs for their performance over tackling New Zealand's housing crisis.

ACT leader David Seymour and Green party co-leader James Shaw didn't own homes, telling RNZ they couldn't afford to buy a house right now.

Both blasted MPs for their performance over tackling New Zealand's housing crisis.

"The fact that the average National MP owns 2.2 properties of their own might suggest why they've spent a lot of time introducing solutions that you'd almost suspect weren't supposed to work - because they certainly haven't," Seymour told RNZ.