- The property's owner, Catherine Seale was on holiday in France with her husband when the party was held on Saturday
- She got a call from a friend telling her what was going on
- Neighbours claim six police back-up units were needed to break up the crowd
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The property developer painted the mews house in March last year after she was denied permission for a basement below the property.
Profits at the estate agent plummeted 42% in the first half of the year.
Ionut Gheorghe, 27, was detained in Los Molinos near Madrid on Friday by Spanish police under a European Arrest Warrant.