Commercial Mortgage LTV Explained: What It Means and How It Affects Your Deal

Most business owners applying for a commercial mortgage treat LTV as an eligibility threshold. Get below the cap, get the loan. What they underestimate is how much it controls the price.

Moving from 75% LTV to below 60% LTV can cut your interest rate by 75 basis points or more. On a £500,000 loan over 20 years, that difference compounds to tens of thousands of pounds. LTV is the primary lever lenders use to price your deal.

Commercial Mortgage LTV at a Glance

What it is: Loan-to-Value (LTV) is the size of your loan expressed as a percentage of the property value. An 80% LTV means you are borrowing 80% and contributing 20% yourself.

Typical range: 65%–75% for most commercial mortgages. Up to 80% for owner-occupiers in specific sectors with some lenders.

Best for: Borrowers with a 25%–35% deposit, strong trading accounts, and a property in a mainstream sector (offices, industrial, retail).

Not ideal for: High LTV applications on specialised property (care homes, farms, leisure). Lenders cap these at 60%–65% LTV, and rates increase sharply above 70%.

The rate reality: A borrower at 75% LTV will typically pay 25–75 basis points more than a borrower at below 60% LTV. That is not a rounding error — it is a meaningful cost difference on any loan above £250,000.

The constraint lenders do not advertise: Your LTV may pass, but your Interest Coverage Ratio (ICR) may not. On lower-yield investment properties, ICR often becomes the binding limit on how much you can borrow, not LTV. See the ICR section for the full picture.

What Is LTV in a Commercial Mortgage?

How LTV Is Calculated

LTV is straightforward in principle. Divide the loan amount by the property value, then multiply by 100.

If you want to buy a commercial property worth £800,000 and borrow £560,000, your LTV is 70%.

The valuation used is the lower of the purchase price or the lender’s independent RICS valuation — not your own estimate, and not the asking price.

If your RICS valuer comes in below the price you are paying, the lender will lend against the lower figure.

That is a practical risk worth understanding before you instruct solicitors: a down-valuation reduces the loan available without reducing your purchase obligation. We find this catches applicants out more often than any other single LTV factor.

Commercial LTV vs Residential LTV

Residential mortgages for owner-occupiers can go to 95% LTV, sometimes higher. Commercial mortgages cap well below that — 75% is the mainstream ceiling for most products, and many lenders start their pricing models at 60%.

We find the gap reflects genuine risk differences, not lender conservatism for its own sake. Commercial properties are less liquid than residential ones. A flat in a town centre has a broad market of buyers and standardised lending. A light industrial unit in a regional business park does not.

If a lender needs to recover its money through a forced sale, commercial property takes longer to sell, values fluctuate more with economic cycles, and the pool of buyers is narrower. Lenders price that risk into the LTV cap and the rate.

There is also no equivalent of Help to Buy or government guarantee schemes for commercial property, which further limits how far lenders are willing to stretch their exposure.

Why Lenders Weight LTV Heavily in Commercial Deals

The LTV cap is a direct measure of the lender’s cushion. At 75% LTV, the lender has a 25% buffer before the property value would need to fall far enough to leave them exposed on a default.

At 80% LTV, that buffer is 20%. On a volatile asset class, those five percentage points matter.

Commercial property values fell by around 20% in the 2008–2009 downturn and further in 2022–2023 as interest rates rose. Lenders who stretched to higher LTVs found themselves with facilities where the loan balance exceeded the property value.

We find the 75% market norm reflects that institutional memory.

Typical LTV Limits for Commercial Mortgages in the UK

Owner-Occupier Commercial Property

For a trading business buying its own premises, the mainstream LTV ceiling is 75%. HSBC states this explicitly — borrow up to 75% of the purchase price or professional valuation, whichever is lower. NatWest applies the same guideline, requiring a minimum 25% deposit as standard.

Barclays underwrites commercial owner-occupier applications on a bespoke basis, but broker criteria guides place their strong-case ceiling at 75%–80% for well-established businesses in mainstream property. Interest-only structures are capped lower, at 65%–75% LTV.

Santander’s owner-occupier commercial mortgage is available from £25,001 for businesses with a turnover above £250,000, with an approximate LTV ceiling of 70%–75%.

Allica Bank is the notable exception at the higher end. For owner-occupied premises in specific sectors — accountancy, veterinary, architecture, property surveying, and select industrial and warehousing — Allica offers up to 80% LTV. For all other owner-occupier cases, their ceiling is 75%.

Handelsbanken underwrites commercial lending entirely on a bespoke basis through their relationship manager model. No published LTV cap applies — your rate and maximum loan are determined through direct negotiation. We verified the lender figures in this section against published criteria as of May 2026.

Commercial Investment Property

Investment deals — where you are buying commercial property to let to a third party — attract lower LTV caps than owner-occupier deals across the board. Lenders view investment property as higher risk: if the tenancy fails, rental income stops, and the loan must be serviced from other sources.

Barclays applies a more conservative ceiling for commercial investment than for owner-occupier use: up to 65% LTV from their criteria. HSBC’s investment LTV cap sits at 70%–75%. NatWest and Allica both cap commercial investment at 75%.

Santander explicitly excludes real estate investment from their standard commercial mortgage product entirely — it is not available regardless of LTV.

The practical implication: if you are acquiring a commercial investment property, treat a 25%–35% deposit as the market baseline.

Higher deposits will be required on anything other than a prime asset with a strong long-term tenant. We find this surprises borrowers who apply with residential deposit sizes in mind.

Semi-Commercial and Mixed-Use Property

Semi-commercial property — the classic example is a retail unit with a residential flat above — sits in a different underwriting lane. Valuers must assess two distinct elements and assign a blended value, which adds complexity and typically suppresses the available LTV.

Allica Bank lends up to 75% LTV on semi-commercial investment. Specialist lenders and brokers can access up to 80% LTV where the residential element is substantial and the commercial element is on a long lease with a strong tenant.

Barclays will consider mixed-use up to 80% LTV, but with a material condition: the residential portion must represent at least 40% of the total property and must be the owner’s main residence. That is not a standard investment scenario — it is essentially an owner-occupier with an ancillary commercial element.

For mainstream semi-commercial investment without that residential occupation, 70%–75% LTV is the working assumption. Where the commercial element is vacant or on a short lease, lenders will pull back further.

How Property Type and Condition Change the Maximum

The type of property has a direct bearing on what LTV a lender will offer, independent of your financial profile.

Industrial and warehousing property typically attracts the most favourable LTV treatment. Demand from logistics and light manufacturing tenants has remained robust, and the asset class is less volatile than retail. Allica’s 80% owner-occupier cap applies specifically to industrial and warehousing, which is a direct reflection of that view.

Offices attract reasonable LTVs in most cases, though lenders have become more selective about older stock with poor energy ratings. EPC rating now influences lender appetite — some lenders, including Barclays, offer discounted rates for properties at EPC B or above, and underwriting can tighten on F or G-rated buildings.

Retail premises face the lowest mainstream LTVs. A minimum 30%–35% deposit — implying a 65%–70% LTV ceiling — is a consistent market norm for traditional high street retail, driven by years of structural pressure on the sector and higher vacancy risk.

Leisure and hospitality (hotels, restaurants, pubs) are assessed on the specific business and trading position rather than pure property metrics. Lenders will fund these assets, but they apply greater scrutiny to operational history and income sustainability.

Specialised assets with limited alternative use — care homes, farms, petrol stations — typically attract the lowest LTV caps, in the 60%–65% range, because the number of viable buyers in a forced sale is narrow.

Uninhabitable or derelict property is generally a hard barrier. Most commercial lenders require the property to be in a lettable or usable condition on day one.

If you need to fund a purchase and refurbishment together, the right product is a bridging loan or development finance, not a standard commercial mortgage.

How LTV Affects Your Rate and Loan Terms

Rate Bands and LTV Thresholds

Commercial mortgage rates are not published on lender websites with LTV tiers alongside them. Pricing is bespoke, and lenders negotiate with borrowers through brokers. The market does, however, operate on consistent risk-based bands that have a predictable shape.

Borrowers below 55% LTV access the most competitive pricing. In 2026, this looks like approximately 5.25% fixed over five years, or around Bank of England base rate plus 1.85% for a variable rate product.

These are market reference points, not advertised rates — your actual rate will depend on the lender, your business financials, the property type, and the term.

At 75% LTV, indicative five-year fixed pricing moves to around 6.00%. That 75 basis point differential from below 55% to 75% LTV translates directly into your borrowing cost.

Moving between the 60% and 70%–75% bands typically adds 25–50 basis points to your rate, all else being equal.

The jump from 70% to 75% LTV often triggers a more significant pricing step than moving within a band — it crosses a threshold that many lenders treat as a meaningful risk boundary. We find this boundary is worth respecting when you structure your deposit.

How Lender Risk Appetite Moves With LTV

Different lenders treat high LTV differently. Some impose a hard cap and will not lend above it regardless of borrower strength. Others will lend to a higher LTV but price the risk into the rate.

Allica Bank caps owner-occupier lending at 75% (or 80% for qualifying sectors) regardless of application strength — additional risk does not unlock more LTV.

Barclays and the major high street banks operate on a similar principle for investment property, with a practical ceiling at 65%–75% that is hard to move regardless of financial covenant strength.

Specialist lenders are more willing to go higher, but at a cost. Clifton Private Finance and other specialist broker platforms report access to 80%–85% LTV in exceptional owner-occupier cases, sometimes quoted as 100% with additional security.

We find the 100% figure in broker marketing almost always means 70%–75% on the subject property with the shortfall secured against another asset you own.

What a High LTV Costs in Practice

The rate differential between LTV tiers is not abstract. On a £500,000 commercial mortgage over 20 years, a 75 basis point rate increase adds approximately £3,750 in annual interest. Over a five-year fixed term, that is £18,750 in additional cost before any consideration of compounding or refinancing.

On a £1,000,000 facility, the same rate premium doubles to £7,500 per year — more than many businesses spend on professional fees in a year.

Asset quality can partially offset the rate premium. A borrower at 75% LTV on a prime, fully-let office with a five-year lease to a solvent tenant may be priced better by some lenders than a borrower at 60% LTV on a vacant industrial unit.

LTV is not the only signal a lender uses. It is the primary one.

LTV and ICR: How the Two Constraints Interact

What Is the Interest Coverage Ratio?

The Interest Coverage Ratio (ICR) measures whether the property’s income covers the loan’s interest cost, with a buffer on top.

The basic calculation: annual net rental income (or business profit for owner-occupiers) divided by the annual interest payment on the loan. If the result is 1.30, the income covers interest costs 1.3 times over — or 130%.

ICR matters because it is a separate test from LTV, and we find it often binds first on commercial investment properties. You can meet the LTV cap and still be refused the loan you want because the property’s yield is not high enough to satisfy the ICR requirement.

When ICR Becomes the Binding Constraint

Consider this scenario, which catches many commercial borrowers by surprise.

Suppose you want to buy a commercial investment property for £600,000 at 70% LTV — a £420,000 loan. The property yields 5% gross per year: £30,000 in annual rent. Your lender requires 130% ICR.

At a product rate of 6%, your annual interest on a £420,000 loan is £25,200. Your ICR is £30,000 ÷ £25,200 = 1.19. You have missed the 130% requirement.

To meet 130% ICR on a £30,000 income at 6%, your maximum loan is approximately £385,000 — an effective LTV of 64% on a £600,000 property, not 70%. Your LTV headroom was not the binding constraint. Your ICR was.

We verified ICR requirements for 2026 directly from lender criteria.

• Allica Bank: 130% for commercial investment (fixed rate at pay rate); 130% variable at margin plus Bank of England base rate; 135% for owner-occupier variable at margin plus base rate plus a 0.75% stress buffer.
• Barclays: 125% for basic rate taxpayers; 145%–160% for higher or additional rate taxpayers. Dynamic stress rate applied — calculated as a margin above the product rate.
• NatWest: 125%–150% range, assessed case by case. Stress test rate is the higher of product rate plus 2%–3% or a 5%–6% floor.
• HSBC: 130%–180% range for commercial investment, bespoke underwriting.

Stress-Testing Your LTV and ICR Position Before You Apply

The stress test rate is not the same as the product rate. Lenders calculate ICR against a higher rate than you will actually pay — this is intentional, to ensure the loan remains serviceable if rates rise.

NatWest’s commercial stress rate is the higher of your product rate plus 2%–3%, or 5%–6%. On a product rate of 6%, that floors the ICR calculation at around 8%–9%, not 6%.

Allica’s owner-occupier ICR includes a 0.75% stress buffer on top of the product rate for variable products. Barclays applies a dynamically managed internal stress rate.

What this means in practice: if you are close to the ICR threshold, your application may not pass the stressed calculation even if it looks comfortable at the headline rate.

We recommend running the numbers at a stress rate 2%–3% above your expected product rate before you approach a lender.

If your ICR still clears 130% at the stressed rate, you are in a strong position. If it does not, you either need a lower loan amount, a higher-yield property, or a lender with a more favourable ICR threshold.

NatWest and Barclays will both consider top-slicing — using other business income or personal income to cover an ICR shortfall. This is worth asking about if the rental income alone does not carry the test, but it brings additional scrutiny of your personal financial position.

How to Improve Your LTV Before Applying

Increasing Your Deposit or Equity Contribution

The most direct route to a lower LTV is a larger deposit. If you can move from 75% to 65% LTV, you cross a significant pricing threshold with most lenders and reduce the annual cost of the facility.

The practical challenge is that most businesses don’t accumulate large cash reserves specifically for property.

The more common route is to time your application to coincide with a period when retained profits are at their peak — after a strong trading year, or after asset disposals that free up capital.

Lenders will ask for three years of accounts. If your most recent year is weaker, we find the timing of your application affects both the LTV level you can reach and the ICR position — sometimes by more than borrowers expect.

Family loan arrangements or investor equity participation can supplement your deposit, but lenders will scrutinise the terms.

An interest-bearing loan from a director that ranks behind the commercial mortgage is viewed differently from a genuine equity contribution. Be transparent with the lender and your broker about the source of your deposit.

Using Security in Another Property

If you already own commercial or residential property with equity, some lenders will accept a charge over that property as additional security.

This allows them to offer a higher LTV — or a lower rate — on the subject property, because their total security position is stronger. We find this is the most commonly overlooked route to improving your LTV position before applying.

The risk you take in exchange is a lien on your existing property. If you default on the commercial mortgage, the lender has the right to enforce against your additional security, which may include your home if it is offered as a cross-charge.

Cross-charging works for some borrowers, particularly those who own an unencumbered commercial property or have substantial residential equity. We do not recommend entering this arrangement without independent legal advice — ensure you understand the enforcement conditions and the lender’s order of priority before agreeing.

Getting the Valuation Right

You can’t inflate a RICS valuation, but you can ensure it is accurate. We recommend providing the valuer with full details of any income, leases, planning consents, and recent comparable transactions.

A valuer working from incomplete information may produce a conservative figure that caps your available loan below what the lender would otherwise offer.

If the first valuation comes in below the purchase price or your expectation, your options are: challenge with additional evidence, accept the lower loan amount, increase your deposit, or withdraw from the transaction.

Most lenders won’t permit a second valuation on the same property at the same time.

Energy efficiency has become a valuation signal. Properties with EPC ratings of A or B can attract valuation uplifts and better lender terms.

If your property is at EPC D or below and you’re planning improvements before applying, completing that work first — and documenting it — may support a higher valuation.

LTV on Commercial Mortgage Remortgages and Refinancing

How LTV Is Calculated on an Existing Property

When remortgaging a commercial property you already own, LTV is calculated against the current market value — not what you paid for it, not what you owe on the original mortgage.

If you bought a property for £500,000 with a £375,000 loan (75% LTV), and it is now worth £700,000 with an outstanding balance of £280,000, your current LTV is 40%.

That puts you in a strong pricing tier and gives you substantial headroom to borrow more without moving above 65%–70% LTV.

The same calculation runs in reverse if values have fallen. If the property you paid £500,000 for is now valued at £400,000, your £375,000 original loan is now at 93.75% LTV on the current value. This is the scenario that triggers covenant breach clauses.

Releasing Equity via a Commercial Remortgage

Equity release on a commercial property — borrowing more against an asset that has risen in value — is straightforward in principle. You refinance to a higher loan amount, using the additional funds for business purposes, investment, or another acquisition.

The constraint is that every pound of equity you release increases your LTV, which increases your rate. A borrower who has spent ten years building equity to below 40% LTV will see their rate increase meaningfully if they remortgage to 65% LTV to release funds.

Factor the rate increase into your cost of capital calculation before assuming that equity release is cheap money. We find borrowers consistently underestimate the long-run cost when they model this at pre-refinance rates.

It’s not suitable if the funds raised will service existing debt at a higher rate than the commercial mortgage — that is a short-term fix that creates a longer-term cost.

It’s also not suitable if the released equity will be deployed into a riskier asset that fails, leaving you with a higher LTV on the property and no new income to show for it.

When Falling Capital Values Change Your Position

LTV covenant breach clauses are standard in UK commercial mortgage facilities.

They sit inside bilateral facility agreements — not on lender websites, not in published criteria guides — and they give lenders the right to act if the property value falls below a threshold that pushes the LTV above the agreed covenant level.

How the mechanism works: the lender tests your LTV periodically, typically annually or when a revaluation is triggered. If the test shows your loan balance exceeds the covenant LTV — say, 75% — you are in breach.

The lender will notify you and provide a cure period within which you must remedy the breach. The cure is typically paying down the loan balance, providing additional security, or both.

If you cannot cure, the breach becomes an Event of Default. At that point, the lender’s options include demanding full repayment, increasing your interest margin, or enforcing their security.

Enforcement on commercial property is a serious process for all parties, and most lenders will negotiate before triggering it. But the right to enforce exists. We find borrowers are often unaware this clause exists in their facility until values move against them.

This risk is most acute for borrowers who acquired property at peak values and have seen those values correct.

The 2022–2023 commercial property repricing left some borrowers — particularly those in retail and offices — with LTV covenants that were comfortable at acquisition and stressed two years later.

We recommend checking your facility agreement if your commercial mortgage is more than two years old. Confirm whether it contains an LTV covenant, what the threshold is, and where current market values put you relative to that threshold.

Frequently Asked Questions