A woman from Innaloo has been revealed as the mystery winner of last week's $30 million Powerball draw.
She had been on an interstate holiday and was unaware of the hype surrounding the search for the winner.
It wasn't until she checked her ticket when she returned home that she realised she was a winner.
"I just sat down like I normally do with a cup of tea and started checking off my numbers," she said.
"When I realised I had all the winning numbers and then the Powerball I thought I had made a mistake. I was fairly calm at the start."
The woman put her ticket away and then returned to it a few hours later to triple check her numbers and confirm it was for the correct draw.
"That's when the excitement and shock set in. I just kept thinking this is $30 million, I'm a multi-millionaire! It will open so many doors not just for me, but for lots of people around me. I'm in a position to help those less fortunate than me," she said.
The woman said she planned on sharing her win with close family and making a substantial donation to some worthy causes in the community.
A dream home, new car and holiday were also on her spending list.
"Like most people, I've always had to save hard to be able to go on a holiday. I have the luxury of a lot more travelling now," she said.
The winning ticket was sold at Innaloo Newsagency in the Westfield Innaloo Shopping Centre.
The $30 million prize is the equal largest Lotto win in WA. This record has only been matched twice before in 2001 and 2007.
It follows a run of Powerball Division 1 prizes in WA this year - a $20 million win in February and August and $10 million in May.
Lotterywest spokesperson Pina Compagnone said the State's tally of Division 1 winners had now reached 73, with these winners sharing in almost $165 million.Lotto players will have their chance to pick up a big prize this weekend when $22 million goes on offer in the Saturday Lotto Superdraw.