Banks and building societies are more likely these days to take the income that can be earned from renting out a room into account when deciding how much to lend. However, most lenders will make the decision to take rental income into account on a case-by-case basis.
In short, be prepared to accept that a lot of lenders will refuse point blank to include rental income in their calculations but it is possibly another option to consider if you are looking for an income stretch.
If you can't persuade your mortgage lender to take rental income into account, don't give up hope, you may still be able to secure a larger mortgage.
In the past, mortgage loans based on three times salary was the norm, but today 
some lenders will loan more than four times salary. In addition, some lenders will look at disposable income when deciding how much to lend. In other words multiples of incomes can be irrelevant.
Therefore, if you have few debts, or are in receipt of government tax credits, you might find that you can secure a larger loan.
At Mortgages-by-Phone we can source you a mortgage throughout the entire mortgage market to find the best deal for you.
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