The Block is a renovation reality show. It's also a contest between the contestants of the show. There are usually 4 or 5 pairs of contestants - often couples with a token sibling pair tossed in. The teams must live in and renovate a dilapidated building or row of town homes; this season is an old run-down office building. The teams are given a cash budget, and a bunch of vouchers for building supplies. The teams are assigned a room to complete each week. At the end of the week all the rooms are judged and the winning team gets additional funds added to their budget. Once the building is complete, all the units go up for auction with the teams keeping all the profits above their reserve price. The team with the most money above reserve wins The Block and gets another hundred grand on top of their auction earnings.