Helicopter footage shows the destruction after flooding caused slips in Rai Valley and parts of Nelson.
The footage, taken on Monday, shows one home at the bottom of a gully in Tahunanui while others hang precariously above.
Roads in the area have also been affected, with a major slip cutting a path through forest in Rai Valley before covering asphalt below.
Jacinda Ardern was in Nelson to visit communities battered by days of torrential downpours, flooding and slips. (Source: 1News)
Rai Valley sits on State Highway 6 between Nelson and Blenheim and is closed due to damage.
It comes as the top of the South Island was hit hard by last week's 'atmospheric river', with roads devastated and hundreds forced from their homes.
The Government announcing the extra support as hundreds of residents continue cleaning up. (Source: 1News)
READ MORE: Photos: Long road to recovery begins in flood-ravaged Nelson
"This is going to be a long recovery," Prime Minister Jacinda Ardern said from Nelson on Monday morning.
A bank collapsed on Thursday after days of severe flooding in the region. Vision supplied by Gary Fieldes. (Source: Supplied)
Ardern said there was work going on to prepare for more adverse weather on the way.
She said it was likely it would not be as severe as last week's weather, however "because of the sheer amount of water that has fallen in this region, the slips are a concern".
It comes after the district was pummelled by several days of heavy rain. (Source: 1News)
Minister for Emergency Management Kieran McAnulty announced the Government is making a further $200,000 contribution to the Mayoral Relief Funds across Nelson Tasman and Marlborough.
Marlborough will receive $100,000 and an additional $100,000 will be contributed to Nelson Tasman.
"This past week has been really tough on the top of the South Island, with a long and challenging recovery ahead," McAnulty said.
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