An artist's apartment was trashed when she was duped into letting it out to a 'fake' Airbnb profile on New Year's Eve.
American Ela Boyd, 36, believed she was renting her £2,000-per-month property out to a young woman, claiming to be staying in London to watch the fireworks.
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Ela was thousands of miles away when she received a message from a concerned neighbour to say the plush ground floor flat had been overtaken by a wild party.
Within hours the usually quiet listed building in North London was overcome by a nightmare rave.
Neighbours saw men with knives and machetes walking around while inside the flat, party goers jumped on chairs until they broke and deliberately urinated on the furntiure.
The concierge of the building was so afraid he hid in the staff room while it took more than 30 police officers to control the crowd.
Ela said the whole ordeal has been traumatising and despite living in the UK for the last three years she is now planning on returning to the States.
She said: "I just want to repair the flat and move home to Los Angeles. I want to be near my family after such a horrific experience."
The concierge caught up in the fracas has needed time off work to cope with the stress.
The total cost of damage is estimated to be around £65,000.
Ela is now trying to raise £20,000 to cover financial losses and to pay for her to move home to the US, including the loss of her £2,250 security deposit.
The revellers returned to try to access the flat again on New Year's Day but police were called for a second time to remove them.
When Ela returned, her flat - which has access to private residents' gym and sauna - was left with drinks bottles, cigarette ends and Nitrous Oxide canisters lining the floor.
She noticed many items had been stolen while there bags used to carry drugs strewn around the property.
Ela said: "I moved to England with nothing more than a suitcase. I moved into the flat a year ago and bought all the furniture for the flat and decorated it myself.
"It's been really traumatic, it's such a gross violation of my stuff. They were putting cigarettes out on my bedding, grabbing my pants and throwing them around and tearing things from the wall."
Police are investigating the incident but no arrests have been made.
A spokeswoman for Scotland Yard told the London Standard: "Police are investigating criminal damage to a flat in Manor Gardens N7 that occurred between around 10am on 31 December and 5am on 1 January.
"The flat had been rented out via a short-term property rental website over the New Year period.
"A large and noisy house party was held on New Year's Eve and police attended twice to disperse the crowd.
"Damage to the property, including fixtures, furniture, walls and floors, was reported to police on 2 January. Some items were also stolen from the property including a leather jacket and jewellery."