Semi-Commercial Portfolio Finance in 2026: One Facility Across Mixed-Use Holdings

Five mixed-use buildings across two towns in the East Midlands. Five lenders. Five renewal dates spread across the calendar, five valuation fees every time a deal ends, and a spreadsheet the landlord’s accountant has quietly stopped trusting. The strongest building, a corner unit let to a pharmacy with three flats above, throws off far more rent than its loan needs. The weakest, a former hairdresser with a flat over it, has been half empty since March and is failing the interest cover test on its own mortgage. The landlord asked us in July whether the pharmacy building could help the hairdresser. It can, and the mechanism is semi-commercial portfolio finance: one facility, one lender and one rent roll across all five, sized on the aggregate rather than on each building alone. This article runs the numbers both ways, explains cross-collateral, and says when five separate mortgages remain the better answer.

Semi-Commercial Property Finance, which is a trading name of Lenzie Consulting Ltd (company number 08174104), is a UK finance arranger and introducer rather than a lender. Semi-commercial and mixed-use finance arranged for business and investment borrowers is unregulated lending and falls outside the Financial Conduct Authority’s regulated mortgage perimeter, so the business is not FCA authorised. Where an individual borrower will personally occupy the residential element of the property, the loan can fall under regulated rules, and those cases are referred to a regulated firm. Every figure below is an indicative published band from semicommercialpropertyfinance.co.uk as of mid 2026, not an offer of finance.

In the episode below, Georgina walks through how a portfolio lender reads five rent rolls as one and what cross-collateral means when you want to sell a building.

Five loans or one: the landlord’s numbers both ways

Here are the five buildings, with round values and passing rents, and what each could borrow on its own mortgage at a 130 percent interest cover ratio, a 9 percent stress rate and a 70 percent loan to value cap. Each loan is the lower of the rent test and the LTV cap.

Building	Value	Combined rent	Loan the rent supports	70% LTV cap	Standalone loan
Pharmacy with three flats	600,000 pounds	60,000 pounds	512,800 pounds	420,000 pounds	420,000 pounds
Cafe with two flats	420,000 pounds	34,000 pounds	290,600 pounds	294,000 pounds	290,600 pounds
Newsagent with flat	350,000 pounds	28,000 pounds	239,300 pounds	245,000 pounds	239,300 pounds
Takeaway with flat	380,000 pounds	30,000 pounds	256,400 pounds	266,000 pounds	256,400 pounds
Former hairdresser with flat	300,000 pounds	15,000 pounds	128,200 pounds	210,000 pounds	128,200 pounds
Total	2,050,000 pounds	167,000 pounds			1,334,500 pounds

The rent test is the annual rent divided by 1.30 and then by 0.09. Five separate mortgages raise about 1,334,500 pounds. The pharmacy building could support 512,800 pounds on rent but is capped at 420,000 pounds by loan to value, so 92,800 pounds of its cover is wasted. And the hairdresser building borrows only 43 percent of its value because its rent is thin.

Now the same five under one facility. Combined rent is 167,000 pounds. At 130 percent and 9 percent, 167,000 divided by 1.30 divided by 0.09 gives about 1,427,000 pounds. Aggregate value is 2,050,000 pounds, so a 70 percent cap is 1,435,000 pounds. The rent test binds, just, and the facility is about 1,427,000 pounds at 69.6 percent aggregate loan to value. That is roughly 93,000 pounds more than the five loans added together, and it comes almost entirely from the pharmacy’s surplus cover being applied to the hairdresser’s shortfall.

Five mortgages test five rent rolls one at a time; a portfolio facility tests one rent roll, and the surplus on the strong building pays for the void on the weak one.

How a strong asset carries a weaker one

That mechanism is the whole point of the product, so it pays to be precise about it. A portfolio lender on our lender panel tests the interest cover ratio of 125 to 140 percent once, on the whole rent roll against the whole loan. So a building running a void, a rent-free period at the start of a new lease, or a tenant paying late is carried by the others for as long as the aggregate holds.

What the lender does still look at is concentration. If one building is 40 or 50 percent of the portfolio’s value or rent, its tenant is the portfolio’s tenant, and the lender prices that. Most portfolio desks also set a floor under each asset, often that no single building may exceed 75 or 80 percent loan to value on its own even when the aggregate is fine, so the weak building cannot be loaded without limit. And the lender wants a plan for the void, not just cover for it. On the hairdresser building the plan was a planning application to convert the ground floor to a second flat, which a portfolio facility can accommodate without a separate refurbishment loan.

Cross-collateral, the SPV and the director’s guarantee

One facility means one charge over all five titles. That is cross-collateralisation, and the landlord needs to understand it before signing. If the facility defaults, the lender’s security is every building, not the one that caused the problem. If the landlord wants to sell one building, the lender releases its charge over that title in return for a repayment that keeps the remaining portfolio inside the agreed loan to value and interest cover, and the release price is set by the facility agreement rather than by the landlord.

Almost every portfolio facility is written to a limited company, usually a special purpose vehicle whose only activity is holding the properties. Where the five buildings sit in the landlord’s personal name today, moving them into a company is a sale to the company, with stamp duty consequences that are an HMRC matter on which the landlord should take their own advice, and it is a tax decision for the accountant rather than for us. Our guide to a limited company semi-commercial mortgage covers the structure, the SIC codes lenders expect and why a newly formed SPV is not a problem. Directors give personal guarantees on the facility, and on a portfolio of this size the guarantee is usually capped at a proportion of the loan rather than unlimited.

Add, sell, substitute: running the facility over time

The other reason an active landlord chooses one facility over five is what happens after completion. A well-drafted portfolio facility includes three rights. Add: a new building can be brought under the charge and the facility increased, on a valuation of the new asset alone, without re-underwriting the whole portfolio. Sell: a building can be released on repayment of an agreed amount, typically the higher of its allocated loan and the sum needed to keep the aggregate covenants intact. Substitute: a building can be swapped for another of at least equal value and rent, with the loan unchanged.

The practical effect is that a landlord buying two or three mixed-use buildings a year, and selling one, runs a single relationship with one lender rather than opening and closing a mortgage every few months. One arrangement fee structure applies to the facility, although each new building still needs its own valuation.

When five separate mortgages are the better answer

A portfolio facility is not always the right structure, and it is better said before completion than discovered after it.

If the buildings are all strong and none is capped by rent, the aggregate test adds little, and the borrowing under one facility is close to the sum of five. The landlord then pays for cross-collateral without getting much for it. If the landlord expects to sell most of the buildings over the next few years, five clean mortgages with no release mechanics are simpler to unwind. If the buildings are in different ownership, some personal and some in a company, a single facility forces a restructure that may cost more in stamp duty than the facility saves. And most portfolio desks on our lender panel set a minimum, often a handful of properties or an aggregate value of a million pounds or so, below which they will not open a facility at all. Two shops with flats above are a pair of semi-commercial mortgages, not a portfolio.

The landlord in the opening paragraph sat on the right side of every one of those tests, which is why the answer was yes. Where a portfolio is a run of adjoining units on one street, the sizing works the same way but the concentration question sharpens, and our page on retail parade finance covers that asset in its own right.

2026 outlook for mixed-use portfolios

The Bank of England held base rate at 3.75 percent at its 30 July 2026 decision, and the next decision is on 17 September 2026. Portfolio pricing across our lender panel sits in the same 6.5 to 8.5 percent band as a single semi-commercial mortgage, with the aggregate loan to value and the spread of tenants deciding where in the band a facility lands. Appetite in 2026 has been strongest among challenger banks and specialist semi-commercial lenders who underwrite portfolios as a single relationship, while high street banks have stayed selective on mixed-use and tend to prefer larger, institutional-grade holdings. Two things are driving enquiries this year. Landlords who assembled a run of mixed-use buildings on separate five-year deals in 2021 are reaching maturity on all of them within a few months, and consolidating is the obvious moment. And the shift of investor money out of pure residential buy-to-let into mixed-use, where stamp duty runs on the non-residential scale, is producing portfolios of shops with flats above that were built to be financed together.

FAQ

What is the difference between a portfolio mortgage and five individual mortgages? Five mortgages are each sized on their own building’s rent and value, and each has its own lender, renewal date and valuation. A portfolio facility is one loan across all the buildings, sized on the combined rent at a portfolio-wide interest cover ratio and capped at an aggregate loan to value, so a strong building can carry a weaker one.

How many properties do I need for semi-commercial portfolio finance? Most portfolio lenders set a minimum of a handful of properties, or an aggregate value of around a million pounds or more, before they will open a facility. Below that, separate semi-commercial mortgages are usually cheaper and simpler.

Can I sell one property if it is in a portfolio facility? Yes. The facility agreement sets a release price for each building, usually the higher of its allocated share of the loan and the sum needed to keep the remaining portfolio inside the agreed loan to value and interest cover. On repayment of that sum the lender releases its charge over that title.

Do I have to hold the portfolio in a limited company? Not always, but almost every portfolio facility is written to a limited company or SPV, and lenders prefer it. Moving personally owned buildings into a company is a sale to the company with tax and stamp duty consequences, so take advice from an accountant before deciding the structure.

Talk to us

If you hold three or more mixed-use buildings on separate loans, or are assembling a portfolio and want it financed as one, we arrange semi-commercial portfolio finance across the challenger banks and specialist lenders that underwrite portfolios as a single relationship, and we run the numbers both ways before recommending one. The company structure lenders expect is set out in our guide to the limited company semi-commercial mortgage. See also our semi-commercial remortgage page if only one building is reaching maturity and the rest can wait.

All figures in this article are indicative published bands for UK semi-commercial and mixed-use finance in 2026, not an offer, a quote or a financial promotion, and any facility is subject to lender terms, valuation and full underwriting. This article was written by Matt Lenzie.