Property website Rightmove has again ranked places across the country according to how content people living there claim to be, for its annual Happy at Home Index.
Ealing is the eight cheeriest borough in the capital and 117th out of 206 localities in Rightmove's latest table, which was published on Tuesday (August 16).
But the outlook is gloomier for Brent, which is a lowly 30th out of 32 London boroughs and languishes in 203rd place nationally.
But Hounslow (178th) and Harrow (154th) have both climbed the table, after being ranked Britain's second and fourth unhappiest places to live in last year's survey.
'Friendly neighbours key to happiness'
Rightmove's research manager Abiola Oni said: "Obviously what 'happy' means to different people can vary greatly, but when you compare which factors score highest in the happiest areas, it shows just how important having friendly people in the local community area is alongside the services and amenities, which is something buyers often tell us when they are looking in new areas to live.
"Space is also one of the most important things when people are looking for a new home, so it's not surprising that places with open spaces such as beautiful parks and beaches have featured in the top 10."
Almost 24,000 people across the country participated in this year's survey, which asked respondents to rate 12 factors about their area, from how friendly the neighbours are to the quality of local services.
Brent has poor ranking for green spaces
Brent scored particularly poorly when it came to nature and green spaces, for which it was ranked 205th; for sports and recreational activties (198th); and for essential local services, like doctors' surgeries and schools (193rd).
Britain's happiest place, according to the findings, is the Essex town of Leigh-on-Sea, followed by Troon in Scotland.
Richmond is ranked the happiest place in London, but only occupies 39th spot nationally, while Barking and Dagenham sits in bottom spot.
'More like a wrong move'
Councillor Muhammed Butt, leader of Brent Council, said: "Everyone I meet is positive about what we as a council and as a community are doing in Brent, with lots of regeneration projects that are improving people's lives.
"We are building more homes, improving our open spaces, cleaning up our streets and we are the only borough to have won two housing zone bids from the Mayor of London, which goes to show what an exciting and happy area that Brent is to live in.
"We are the most diverse borough in the UK with many communities living very happily side by side. Every day I am out in the community speaking to residents who are proud and tell us that they love where they live.
"I find it unacceptable that Rightmove think it is ok to run down local communities by carrying out these polls which evidently do not paint an accurate picture of local areas, simply to court publicity for their own gain.
"It's not a right move but more like a wrong move."
Rightmove's table is not the only happiness survey in town.
A survey by the Office National Statistics, for which 165,000 people were quizzed, last year found that people in Hounslow, Harrow and Ealing were all happier than the average Briton.
How happy are people where you live?
|Borough||National ranking (out of 206)||London ranking (out of 32)|
|Kensington and Chelsea||139||14|
|Hammersmith and Fulham||141||15|
* figures according to Rightmove's Happy at Home Index 2016