Cars sit in floodwaters in Londonderry, a suburb outside Sydney on March 25, 2021, as flood-stricken residents along Australia's east coast began a massive clean up effort following days of floods. (SAEED KHAN / AFP)

HOLLISDALE, Australia - Robert Costigan thought the worst was behind him when he saved two family properties from bushfires a summer ago.

This year, they floated away.

The homes of the Australian cattle farmer and his father-in-law Brian Watt, who lives next door, were swept off their foundations this month when heavy rains caused rivers to reach their highest levels in half a century, submerging bridges and buildings. Watt’s house slammed into a telegraph pole.

When the bushfires hit a summer ago, the Australian cattle farmer Robert Costigan's family kept safe in town as Costigan remained at the property in an effort to protect it. Now they are all staying with neighbours, homeless and heartbroken

“If it wasn’t for bad luck I’d probably have none at all,” Costigan told Reuters at his 100-acre property at Hollisdale, 400km north of Sydney.

Days after the floods, the property was strewn with upended farm equipment, trees and debris.

“I don’t know whether it’s just someone testing me or what, but it is what it is I guess. You get through it,” he added, fighting back tears.

Costigan’s ordeal is familiar to thousands living outside cities on Australia’s densely populated east coast.

After years of drought devastated crops and livestock, they battled the country’s worst wildfires in a generation in the Southern hemisphere summer of 2019-20, only to face flooding amid a La Nina wet weather event this year.

ALSO READ: Some Australians return home as others evacuated in floods crisis

The same river system Costigan pumped water from to save his house from the bushfires has returned to destroy it with flood.

This combination of handout satellite imagery released on March 25, 2021, by Maxar Technologies shows the aftermath of floods (top) in Windsor, Australia, on March 25, 2021, as compared to the same area on Jan 24, 2021 (bottom). Thousands of flood-stricken residents along Australia's east coast began a massive clean up effort on March 25, 2021, as waters receded revealing damaged homes, piles of debris and mud-caked roads. The region has been devastated by widespread flooding brought on by a torrential downpour, inundating towns, destroying farmland and leaving two people dead. (SATELLITE IMAGE ©2021 MAXAR TECHNOLOGIES / AFP)

Water levels have subsided but insurers have written off the building, with structural timber torn loose, tin roofs crushed and everyday objects - a mattress, a fluffy child’s toy - reduced to a sodden mess.

When the fires hit, the family kept safe in town as Costigan remained at the property in an effort to protect it. Now they are all staying with neighbours, homeless and heartbroken.

Two days before the house was swept away, Costigan’s daughter Eva had to cancel her 11th birthday party due to the flood.

“She was upset about that and then we had to tell her that she lost her house Saturday morning. All the presents that she got Thursday are gone,” Costigan said.

Still, the 39-year-old farmer, who also works for the local council, vowed to rebuild.

READ MORE: Australian floods kill two, more evacuations as clean-up begins

“I’ve worked too hard to just walk away from it,” he said.