Unfortunately, if your partner isn’t going on the mortgage, then a lender won’t take their income into account for the new application.
The only way that you could make use of their income, is to look at a guarantor, or a joint applicant / sole proprietor mortgage. It is more likely that the latter could be of more benefit to you. ‘Joint applicant / sole proprietor’ is where both you and your partner go on the mortgage application, but only yourself will be on the title deeds.
This way, you would own the property, but your partners income can be used, although he would then be “jointly & severally liable” for the mortgage payment.
If you’d like to find out more then call us on 020 4519 5101 and we’ll arrange a convenient time for one of our consultants to get in count with you, to explain things further.