Director of the site Matt Hutchinson said the SpareRoom.co.uk was "no stranger" to quirky advertisements but this one had put a new spin on the phrase 'beds in sheds'.
"There is no clear reason given for putting a bed inside a shed, inside a bedroom, but it could be because the other housemates use the room as communal space," Hutchinson told the Guardian.
Peduzzi turned down the offer of the bed in shed in a lounge, and the advert has since been taken down but it highlights how desperate the London housing market has become.
According to Valuation Office Agency data, the cost of rent in Greater London has climbed by a staggering 22 per cent over the past five years.
A New Zealander living in London, Kristy Burden, said she paid around £700 (almost NZD$1700) a month for a single room in a two bedroom flat in Fulham.
The 22-year-old is a recent arrival in London and said she hoped to find a job before her savings ran out.
"I moved up here knowing I would be going pay cheque to pay cheque," Burden said. "The average cost or rent is around £600-£800 (NZD$1444-$1925)."
Despite the high cost of living, Burden said it wasn't too different from the cost of renting a flat in Auckland.
"I think it is relative to living in Auckland, maybe somewhere like Ponsonby. It is expensive to move here from New Zealand because of the exchange rate but when you are earning in pounds it is similar," she said.