General Election 2015: 10 key London seats

By Rags Martel: ITV London reporter

Wherever you go in London during this election campaign housing is a big issue. Spiralling prices and unaffordable rents mean there are votes to be won for anyone who has a real solution.

For the last of our 10 constituencies to watch, we went to Battersea where a huge amount of building is taking place. In 2010 the Tories won the seat from Labour - with almost half the vote. So how will the housing crisis affect how voting goes this time?

By Rags Martel: ITV London reporter

For the latest in our series of 10 constituencies to watch, we've been to Enfield Southgate in north London. It might appear to be safe for the Tories. In 2010 they had a 17 per cent lead. But elections in Enfield have a history

In 1997 the cabinet minister Micheal Portillo lost his seat despite defending a huge majority. And Labour are confident history can repeat itself.

By Rags Martel: ITV London reporter

With less than a month until polling day it's not clear in Bethnal Green and Bow who the most likely challenger to Labour is. In 2010 they won a big majority. The Lib Dems finished second. And Respect - who were defending the seat - came in third.

This time Respect aren't standing, the Lib Dems are expected to lose votes and Tower Hamlets First - who run the council - won't say whether they are going to field a candidate. Throw in the mix allegations of fraud in last year's mayoral election and you've got one the country's most murky seats.

By Rags Martel: ITV London reporter

In the latest of our series of ten constituencies to watch ahead of next month's election, we look at Thurrock where the result last time couldn't have been much closer.

Five years ago, Conservative Jackie Doyle-Price just scraped into the House of Commons beating her Labour rival by fewer than one hundred votes. She's standing again but this time round Ukip could overtake both parties.

By Rags Martel: ITV London reporter

The outcome of this year's General Election is perhaps the most difficult to predict in history. But that's not the case in every constituency. In three quarters of seats in London the majorities are so large they appear out of reach. That doesn't mean they're worth disregarding.

The constituency of Ealing Central & Acton could go either way at the election. The conservatives won the seat in 2010, but a recent poll put Labour ahead. ITV News has been looking at key seats in London as part of its 10 constituencies to watch series.

By Rags Martel: ITV London reporter

The outcome of this year's General Election is perhaps the most difficult to predict in history. But that's not the case in every constituency. In three quarters of seats in London the majorities are so large they appear out of reach. That doesn't mean they're worth disregarding.

Hampstead & Kilburn is England's most marginal seat. The retiring MP Glenda Jackson won it in 2010 by just 42 votes. As part of our series of series of 10 constituencies to watch, ITV News London visited the community to find out what the issues are.

By Rags Martel: ITV London reporter

The outcome of this year's General Election is perhaps the most difficult to predict in history. But that's not the case in every constituency. In three quarters of seats in London the majorities are so large they appear out of reach. That doesn't mean they're worth disregarding.

As part of our series of 10 constituencies to watch, ITV News London visited Croydon Central. It's one of the city's key battlegrounds, and a surge in support for Ukip could have a big effect on the seat.

By Rags Martel: ITV London reporter

If the results of the ITV News poll are replicated on May 7th, the first Conservative seat to fall would be Hendon. This constituency in north west London is number one on Labour's target list.

In 2010 the Tory Matthew Offord won by 0.2%, that's just 106 votes. In the third of our ten to watch this election, Rags Martel went to find out more about the battle for Hendon.

By Rags Martel: ITV London reporter

The outcome of this year's General Election is perhaps the most difficult to predict in history. But that's not the case in every constituency. In three quarters of seats in London the majorities are so large they appear out of reach. That doesn't mean they're worth disregarding.

In the second of our series of 10 constituencies to watch we went to Holborn & St Pancras, where Labour's large lead from 2010 looks unbeatable. But, the battle there brings together two key characters on the capital's political scene.

By Rags Martel: ITV London Reporter

Over the coming six weeks we'll be highlighting 10 key London seats to watch in the General Election.

We start in the constituency of Bermondsey and Old Southwark.

In 2010 the Lib Dems got almost half of the vote. But Labour are confident they can depose Simon Hughes - who's been the MP there for more than three decades.