A financial consultancy firm has ranked Harrow as the sixth best performing borough authority in London.
The study by PriceWaterhouseCoopers (PWC) picks out benefits, planning, community safety and transport as among the top-rated services of their kind offered by anywhere in the capital.
Tory-controlled Harrow Council is also the second most improved council in London and is 37th best performing in England, according to the research, which compared key areas in local government to nationally-set benchmarks.
Council leader David Ashton (Conservative) said: "This is the highest ranking Harrow has ever had. It's evidence of how far we have come in the last two years.
"We have gone from a position of near bankruptcy to a point where we can say we are making real strides along the road to our goal of being recognised as one of the best London councils by 2012.
"In terms of waste, we have made it easier for residents to recycle and are now one of the best in the capital.
"But while we are getting better, we know that we need to continue to improve services and the lives of our residents. And to do that in the most cost-effective way we can, cutting jargon and making decisions based on common sense."
PWC's Andy Ford said: "It is clear that Harrow Council is getting significantly better in some key areas of its performance and is now one of the most improved councils in London. It has also moved considerably up the national league table of UK authorities."