One in 38 homes fell under that category in that area, while second on the list of 'home threat hotspots' in the UK was Haringey with one in 45 homes being at risk.
Last year 8,300 people were at risk of losing their every week – the equivalent of 50 people per hour.
Stephen Smith, director, Legal & General Mortgage Club and Housing, said: “The threat of losing ones home was rife last year as unaffordable house prices forced many buyers to sacrifice more of their disposable income to cover their mortgage.
“Although MMR rules have made affordability tests more stringent, a change in circumstance could cause payments to slip. If this is the case, it’s vital that people speak to their lender as early as possible so that they can come to an agreement.
“Lenders will always work to keep people in their homes and the earlier they are made aware of any financial problems, the more likely it is that they’ll be able to achieve this.
He added: “These stark figures are an indicator of the degree of stress in the undersupplied housing market.
“The government has promised to build more homes to help reduce house price inflation and ensure that prices don’t rise faster than people can save for a deposit.
“It’s crucial that they follow through with this to relieve the strain on people looking to buy.”
Outside London in Slough one in 58 homes were at risk, in Peterborough one in 61 and Manchester one in 66.
Alison Mohammed, Shelter’s director of services, said: “These staggering figures show just how many people are fighting to keep their families in their homes, after dealing with the double blow of welfare cuts and a drastic shortage of affordable housing.
“We’re doing everything we can to give advice and support to anyone who faces losing the roof over their heads, but the government must also play its part by putting a stop to further cuts to the safety net which helps ordinary families stay in their homes.”
