Prime Postcode Mortgages

A prime postcode mortgage is a large mortgage on a high-value home in a sought-after location, such as prime London, typically underwritten individually by private banks, specialist lenders or mainstream lenders' high-value teams.

Large mortgages running into millions are available, assessed individually on income, assets and the property. The maximum depends on the lender's view of affordability or of the assets supporting the loan.

Lenders usually offer lower maximum loan-to-values as loan size increases, so large prime mortgages often need larger deposits than standard mortgages. Thresholds vary by lender and are assessed case by case.

Interest-only is common on prime mortgages for borrowers with substantial assets, with repayment planned from investments, other property or sale, though repayment and part and part are also available. The strategy is evidenced at application.

Specialist and private lenders assess bonuses, carried interest, partnership profits and other complex income individually, often averaging over several years and considering future entitlements and assets. Employer or accountant letters support the figures.

Lenders apply individual underwriting, specialist valuation and lower loan-to-values to high-value property, and some set maximum exposure per borrower or per property, because the market for such homes is smaller.

A private bank mortgage is relationship lending for wealthy clients, assessing wider wealth and often linked to assets held with the bank, offering flexibility on structure and income that standard lenders may not.

A high net worth mortgage customer has annual net income of at least £300,000 or net assets of at least £3 million, with the evidence required by the lender under the FCA rules. Lenders can apply modified rules to them under the Financial Conduct Authority's (FCA) framework.

Private banks suit clients wanting a wider relationship and willing to place assets; specialist lenders suit complex income without that requirement; high-street teams can be competitive for straightforward cases. Comparing all shows the best package.

Many private banks expect a level of assets under management as part of the lending relationship, though some lend without it. The requirement affects the overall cost and is compared across lenders.

Overseas buyers can get prime mortgages from lenders that accept non-UK residents, assessed on income currency, residence, assets and the property. Private banks are often more flexible for international clients.

Non-UK resident buyers of residential property in England and Northern Ireland pay a 2% Stamp Duty Land Tax (SDLT) surcharge on top of other rates, including the 5% surcharge on additional dwellings where it applies.

Some lenders accept income in foreign currencies, applying a reduction for exchange-rate risk, and some lend in other currencies. The currency mismatch between income and loan is considered in affordability.

Many lenders require a UK bank account for mortgage payments, and all apply identity and anti-money-laundering checks on the source of deposits and wealth, which take longer for international clients.

Stamp Duty Land Tax (SDLT) on a £3 million main home in England is £273,750. For an additional home it is £423,750, and for a non-UK resident buying an additional home £483,750.

Prime homes are often unique, with few recent comparable sales, so valuers rely on fewer data points and greater judgement. Lenders use specialist valuers, and valuations can differ from the agreed price.

You can remortgage or take a further advance on a prime home to raise capital for purchases, investments or family, assessed on income or assets, often on interest-only with private banks or specialist lenders.

Companies buying residential property over £500,000 can face a 17% Stamp Duty Land Tax (SDLT) rate in England and Northern Ireland and the Annual Tax on Enveloped Dwellings (ATED) unless reliefs, such as for property rental businesses, apply. Advice is essential.

Prime mortgages take longer than standard mortgages because of individual underwriting, specialist valuation and enhanced anti-money-laundering checks, often several weeks. Starting early protects the purchase timetable. Overseas clients should allow longer for checks on the source of funds.

Buy to let mortgages are available on prime properties, assessed on rent under the Prudential Regulation Authority's (PRA) stress tests, though prime rental yields are often low, making the rental test harder to meet.