Portfolio Landlord Mortgages: The Four-Property Rule

What being a portfolio landlord means

Regulatory rules require lenders to assess the whole portfolio of any landlord with four or more mortgaged buy-to-let properties, not just the property being financed. In practice that means more paperwork and a slower, more commercial underwriting process.

It also changes which lenders suit you. Some mainstream buy-to-let lenders cap the number of properties or the total borrowing they will accept, while specialist lenders are set up for larger portfolios and take the extra work in their stride.

What lenders will ask for

Expect a pack rather than a form:

• A portfolio schedule listing every property, value, lender, balance, rate, term and rent
• Aggregate loan to value across the portfolio, commonly capped at 65 to 75 per cent
• Aggregate rental coverage across the portfolio, tested at a stress rate
• An assets and liabilities statement
• A cash flow forecast, and for larger portfolios a short business plan
• Two years of SA302s or company accounts, plus rental statements

Common blockers

The most frequent problems are one heavily geared property dragging the aggregate loan to value above the cap, a background portfolio with a property standing empty, and inconsistencies between the schedule and the tax return.

Keeping a single accurate portfolio schedule updated quarterly is the simplest way to make every future application faster, and it is what we will ask for first.

Structuring a growing portfolio

Beyond a handful of properties, landlords often move to limited company ownership for new purchases, and some consolidate several properties onto a single portfolio facility to reduce administration and free up equity.

Portfolio facilities can be efficient but they cross-charge your properties, which limits your ability to sell individual units. It is a trade-off worth modelling before committing.