Commercial Mortgage Deposits: How Much Do You Need?
- George CHRISTOU
- Jan 19
- 3 min read
Deposits for commercial mortgages are typically higher than for residential property, and the amount required can vary depending on the property, how it’s used, and the overall risk profile of the deal.
Understanding deposit expectations early on can help you assess whether a purchase or refinance is realistic before committing time or costs.

Typical deposit ranges for commercial mortgages
As a general guide, commercial mortgages are often offered at around 65–75% loan-to-value (LTV).
This means a deposit of approximately:
25–35% of the property value
However, this is not a fixed rule. Some cases require larger deposits, while others may achieve higher LTVs depending on the circumstances.
Owner-occupier commercial mortgages
For owner-occupier commercial mortgages, lenders usually assess deposit requirements alongside the strength of the business operating from the property.
Factors that can influence the deposit required include:
Trading history and profitability
Stability of the business sector
Property type and condition
Borrower experience
Established businesses with strong accounts and straightforward property types may be able to access higher LTVs than newer or more complex cases.
Commercial investment mortgages
For commercial investment property, deposit requirements are often driven by rental income and property risk rather than the borrower’s personal income.
Lenders typically look at:
Rental income relative to mortgage payments
Lease length and tenant strength
Property type and location
Demand for the property if it were to be re-let
Investment properties with shorter leases, specialist use, or higher perceived risk may require a larger deposit.
Mixed-use and semi-commercial property
Mixed-use or semi-commercial properties — such as shops with flats above — are commonly financed with commercial mortgages, but deposit requirements can vary.
Lenders will consider:
The balance between commercial and residential elements
How the property is currently used
Market demand for both parts of the building
In some cases, mixed-use properties may be treated more conservatively than standard commercial buildings, resulting in a lower maximum LTV.
When higher deposits are usually required
A larger deposit may be needed where:
The property is considered specialist or niche
Lease terms are short or non-standard
The borrower has limited experience
The business or rental income is less established
Refurbishment or change-of-use works are required
In refurbishment or conversion scenarios, funding is often structured in stages rather than as a single long-term mortgage from the outset.
Deposit sources: where the funds come from
Lenders will usually want to understand where the deposit is coming from.
Common sources include:
Cash savings
Equity from another property
Business reserves
Sale proceeds from an existing asset
The source of funds must be clear and acceptable to the lender, particularly for larger or more complex transactions.
Why loan-to-value isn’t the only consideration
While deposit size is important, it’s only one part of the overall assessment.
A lower loan-to-value does not automatically guarantee approval if:
Affordability is weak
The property falls outside lender appetite
The structure of the deal is unclear
Equally, a well-structured case with a strong business or rental profile may achieve better terms than expected.
Getting clarity early on
Understanding likely deposit requirements early helps:
Set realistic expectations
Avoid wasted valuation or legal costs
Structure funding in a way lenders are comfortable with
This is particularly important for mixed-use property, investment purchases and more complex scenarios.
Taking the next step
If you’re considering a commercial purchase or refinance in North London, having a realistic view of deposit requirements is an important starting point.
A short conversation can often clarify what lenders are likely to support before moving forward.
Talk to us
You may also find our Commercial Mortgage FAQs useful for quick answers to common questions.
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