The attention made bidding at an already nerve-racking auction even worse, with Watson leaving in a hurry and avoiding cameras as soon as he won the house.
"All three of us thought the attention and interest in the property was crazy," Watson said.
"There are other properties in the area that have sold for more, which are in similar condition."
The house was described by Barfoot and Thompson agent Kirk Vogel as "the worst house" he had listed. The late 1800s cottage had no power or running water and sagging ceilings and rotten floorboards throughout.
Watson admitted the trio had hard work ahead when the property settled in two months.
"There is no hiding the fact there is a lot of work but we are up for it, 100 per cent," he said.
"We like character homes and love the area. It will be in keeping with the character of the street."
The three have enlisted an architect to draw up plans and expected to use the experience gained renovating a Westmere bungalow earlier this year.
The men "honoured the heritage" of that house as they transformed the humble 96sq m bungalow into a high-end, four-bedroom home of 254sq m with an in-ground pool outside.