Loan-to-Value (LTV) Explained (UK): What It Means for Bridging, Buy-to-Let & Development Finance
Loan-to-value (LTV) is one of the first numbers UK lenders look at. It affects how much you can borrow, which lenders may consider the case, and often the rate and fees available.
This guide explains what LTV means, how it’s calculated, and how it typically works across bridging loans, buy-to-let mortgages, and development finance.
What is LTV?
LTV (loan-to-value) is the percentage of a property’s value that you want to borrow.
Formula:
LTV = (Loan amount ÷ Property value) × 100
Example:
If the property is £200,000 and you borrow £150,000:
£150,000 ÷ £200,000 = 0.75 → 75% LTV
In simple terms: higher LTV = smaller deposit/equity = higher lender risk.
Which “value” do lenders use?
Lenders don’t always use the number you expect. They typically use one of the following:
Purchase price vs valuation
Often the lender uses the lower of the purchase price or the valuation (so you can’t usually borrow against an “optimistic” price).
Current value vs future value
Some products (especially development finance) can also consider end value (GDV), but lending still has rules around how that’s measured and released.
Why LTV matters so much
LTV can influence:
Lender choice (some lenders only operate up to certain LTVs)
Pricing (higher LTV often means higher cost)
Approval strength (lower LTV can make a case easier to place)
Required deposit/equity (your cash/equity usually needs to cover the gap)
Typical LTV ranges in the UK (by finance type)
These vary by lender, property, and borrower — but these are common UK patterns.
Bridging loans (typical LTV)
Many bridging loans are commonly arranged up to around 70–75% LTV on standard properties, assuming a clear exit plan.
What changes the maximum LTV?
Property type/condition
Exit strategy strength (sale/refinance plan)
Whether the property is standard vs non-standard/unmortgageable
Whether additional security is available
Buy-to-let mortgages (typical LTV)
Buy-to-let is often commonly seen at around 75% LTV, with some specialist scenarios differing depending on lender criteria.
What matters most in buy-to-let isn’t just LTV — lenders also look closely at rental coverage (whether the rent supports the mortgage).
Development finance (LTV isn’t the only measure)
Development finance often uses a mix of:
LTV (loan vs current value)
LTC (loan-to-cost) (loan vs total project costs)
LTGDV (loan vs end value / GDV)
This is why development finance can feel more complex: it’s usually assessed against the project numbers, not just the property today.
LTV vs deposit (what you actually need)
Your deposit/equity is usually the gap between the property value and the loan.
Example:
Property value £300,000
Loan £225,000 (75% LTV)
Deposit/equity = £75,000
Also budget for costs like:
valuation/legal fees
broker/admin fees (where applicable)
stamp duty (if relevant)
interest (bridging/development)
How to improve your LTV (if you need to)
If you’re coming out too high, common ways to improve the position include:
Increase deposit / reduce the loan
The simplest lever is borrowing less (even slightly can move you into a better bracket).
Use additional security (where appropriate)
Some finance can be structured with extra security, which may improve terms — but it also means more assets are tied into the deal.
Add value (longer-term strategy)
In some cases, refurb work can increase value before refinancing — but this depends on the property, timeline, and criteria at the refinance stage.
Quick takeaway
If you remember one thing, it’s this:
LTV is a quick measure of risk — and a big driver of what’s possible in UK property finance.
If you want to sense-check what’s realistic for your situation (loan size, property type, and timescale), the best next step is to share the basics so the right route can be matched from the start.