Their two-bedroom ground floor apartment in the Sydney suburb of Vaucluse sold under the hammer for $1,105,000 - $205,000 over the reserve.

It was the largest gain for any of the show's four couples, who were each given eight weeks and $80,000 to renovate an apartment in the run-down building.

The properties were auctioned off on Tuesday night, but producers waited until last night's finale to reveal the winners, based on set reserve prices.

The Pitts were the only couple to break the $1 million mark.

Erin and Jake came in second after their apartment sold for $997,500 - $87,500 above the reserve.

Mark and Duncan made a $47,000 profit after selling for $907,0000, while Chez and Brendan walked away empty handed when their apartment failed to meet its $880,000 reserve and was passed in at $865,000.

The couples were allowed to keep the profits from the sales, while the Pitts were also given $100,000 as the show's champions.The pair now plan to invest the money in another home and have hinted they may start a family."Words can’t describe the feeling. Our dream was to buy a house and now we really can," the couple said."The sky is the limit after finishing The Block so now we feel like we can take on anything, maybe even being parents."The couple trumped series one winners Adam Thorn and Fiona Mills, who sold their Bondi unit for $751,000 in 2003, $151,000 above its reserve.The following year, Jamie Nicholson and Andrew Rochford took out the title after their Manly apartment went under the hammer for $868,000, making them $78,000. Rochford used his profile from the show to launch a television career, hosting the lifestyle program What's Good For You and appearing as a regular panellist on The 7pm Project.Channel Nine has announced a fourth series of the show, with applications now open for 2011.The series has attracted an average audience of 1.2 million viewers across the country. Ratings for last night's finale episode will be revealed today.