EyeOnWhy no magic number exists
Mortgage lenders do not usually operate on a single score cut-off. They review the underlying credit file — payment history, existing debts, searches, public records — often alongside income, employment and the deposit. Different lenders weight these differently, which is why one lender declines what another approves.
Scores themselves are model-specific: the score from a consumer app may not be the score a particular lender calculates, and the same person can hold several genuinely different scores at once. Any figure claiming to be "the score you need" is at best a rough average from one market at one time.
What the file review actually looks for
The strongest signal is a history of payments made on time over years, across a mix of credit. Lenders also look at existing commitments relative to income, how much available credit is being used, how recently and how often new credit was applied for, and whether any public records such as defaults or bankruptcies exist.
Recent activity weighs more than old history, and serious recent events weigh more than anything. Two applicants with identical scores can present different files — one with an old settled problem and long clean history, one with a fresh late payment — and be treated very differently.
Strengthening the parts you control
The levers that reliably help are the unglamorous ones: every payment on time, credit utilisation kept low, old accounts retained rather than closed, and no burst of new applications before applying. Correcting file errors is equally real — disputing mistakes is a normal part of mortgage preparation.
Where the history is thin rather than damaged, a few months of light, perfectly-managed credit use can establish the record lenders want to see. The utilisation calculator shows how much of a limit even modest spending consumes.
If the history is damaged
Past difficulties do not close the mortgage door permanently; they usually raise the price and narrow the choice of lender while they remain visible. Some lenders specialise in impaired histories, and time itself is a repair tool — approaching a mortgage with bad credit covers the sequence.
Whatever the history, applying to many lenders in quick succession is the avoidable mistake, because multiple hard searches in a short window can itself look like distress. Checking eligibility through soft-search tools where offered protects the file while you compare.