Islington property sales were £414,000 above the national average in the last year.
New data shows the average Islington property sold for £640,906, compared to the UK average of £226,906.
The figures, released today by the Office of National Statistics, also listed Islington as the seventh most expensive local authority area to buy a home.
And the average homeowner would have seen their property jump in value by about £166,000 in the past five years.
Meanwhile, first-time buyers spent an average £606,529 in Islington, about £158,000 more than it would have been five years ago.
However, property prices grew by just 0.1 per cent in the last year, compared to 1 pc across London.
Between January and December last year, the most recent 12 months for which sales volume data is available, 1,679 homes were sold in Islington. It was 28% fewer than in 2016.
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