A cramped understairs cupboard has been put up for rent in London for £500 a month - plus a share of the bills.
Alex Lomax, 23, expressed her disgust on social media after viewing the room in Clapham, south west London, which was described as "furnished" in an online listing on london2let.com.
Pictures posted on Twitter by the Nottingham graduate reveal a cupboard with a single mattress on the floor and boxes stacked by the pillow, which she called a "bed under the stairs".
Ms Lomax, an aspiring journalist who is hoping to move to London, said she was "shocked" by the ground-floor room.
"I was obviously shocked but was all too polite, I think", she said. "I wish I'd been more angry because it's clearly ridiculous and I'm annoyed at myself for basically just making my excuses."
The online listing for the room seeks a "friendly, open-minded and outgoing person" to join the house share.
It adds: "We're a good bunch and like to chill out a lot together - not really looking for somebody that just wants to stay in their room. Room comes with a bed."
Ms Lomax said the man who showed her the room "didn't apologise" for its condition, and told her "it was the last room to rent in the place".