Every different lender has a different credit scoring system. Any issues on your credit file such as missed payments or CCJ's will remain there for 6 years so there is nothing you can do about them. Most lenders look favourably if you are on the voter's roll so make sure that is done. Everything else comes down to your personal affairs. Some lenders prefer a stable employment bckground, some prefer that you have had a decent amount of credit before and always paid it on time. The best way to go about getting your mortgage is to get a credit report and take it to a mortgage adviser who will find you the best product based on your own circumstances.