UK economic output rose by 0.8% between July and September, official GDP figures show.
The Office for National Statistics said there had been a "fairly strong" performance across all sectors.
The data builds on a 0.7% GDP rise in the April-June period and is the best quarterly performance since 2010.
Chancellor of the Exchequer George Osborne tweeted: "This shows that Britain's hard work is paying off & the country is on the path to prosperity."
Deputy Prime Minister Nick Clegg said the figures "show that we are firmly on the road to economic recovery".
The ONS data for construction was up 2.5% over the quarter, the second successive quarter of growth after a volatile performance over the past year.
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