Loan-to-value is the single most important number in any bridging loan assessment. It determines how much a lender will offer against a given property, and it sets the ceiling for every other part of the borrowing calculation. Unlike a mortgage, where income and credit profile can stretch or compress what is available, bridging LTV is driven primarily by the property value, the equity position, and the strength of the exit. Understanding where a specific case sits against typical LTV limits is the fastest way to establish whether bridging is feasible and what the realistic loan amount looks like.

The “maximum LTV” on a bridging loan is not a single fixed figure. It varies by product type, by lender, by property, and by the overall quality of the application. The ranges cited in this guide are illustrative and typical across the specialist bridging market; individual lenders will apply their own criteria and specific cases will sit above or below any generalisation. This article is for informational purposes only and does not constitute financial advice. All LTV figures and examples used are illustrative only and should not be relied on as specific lending commitments.

How LTV is calculated for bridging

Bridging LTV is expressed as the gross loan amount divided by the open market value of the security property, expressed as a percentage. The gross loan is the total amount lent before any deductions for retained interest, arrangement fees, or other costs. The open market value is the price a willing buyer would pay for the property in a reasonable marketing period under normal market conditions, as assessed by a RICS-qualified surveyor instructed by or approved by the lender.

The valuation is the foundation of the entire LTV calculation, which is why it matters so much. If a buyer is paying £500,000 for a property but the independent valuation comes back at £475,000, the lender will base the LTV on £475,000, not £500,000. This is sometimes described as lending against the lower of purchase price and valuation. For a lender offering up to 70% LTV, the maximum gross loan in this scenario would be £332,500 (70% of £475,000), not £350,000 (70% of £500,000). Buyers who have agreed to pay above the market value, or who have agreed prices that are not well supported by comparable evidence, can find the LTV calculation is less generous than they expected. The valuation is also why property type and location matter: properties that are harder to value accurately, or where comparable sales evidence is thin, attract more conservative valuations and therefore lower maximum loan amounts.

It is worth being clear about what LTV measures and what it does not. LTV measures the lender’s security position: how much of the property value is covered by the loan. A 70% LTV means the lender’s loan represents 70% of the property value, leaving 30% equity as a buffer between the loan amount and a potential forced sale recovery. It does not directly measure affordability or the borrower’s financial capacity. In bridging, where the primary underwriting focus is the security and exit rather than income, LTV is the most important single metric in the lender’s risk assessment. Our guide to what bridging lenders look for sets out how LTV sits within the broader underwriting assessment.

Typical maximum LTV by product type

Bridging LTV limits vary by product type because different property types carry different risk profiles for a lender. A mainstream residential property in an active market is easier to value, easier to sell in a forced sale scenario, and has more consistent comparable evidence than a specialist commercial asset or a greenfield development site. The LTV limit reflects how confident a lender can be in the security value and how quickly it could be realised if needed. The figures below are typical ranges across the specialist bridging market and are illustrative only. Individual lenders set their own criteria and specific cases may sit above or below these ranges depending on the full application picture.

These ranges should be read as market patterns rather than fixed rules. A particularly strong application, with a mainstream property, substantial equity, a clean borrower profile, and a very credible exit, may attract a lender willing to go slightly higher than the typical ceiling for that product type. Conversely, a case with complicating factors will often find the effective maximum LTV is lower than the product type alone would suggest. The interaction between product type and individual case strength is covered in the next section.

What pushes LTV limits below the typical ceiling

The LTV ranges above represent typical ceilings for clean, straightforward cases. In practice, a number of factors consistently result in lenders offering lower LTV than the product type ceiling, either because the security is less liquid or harder to value, or because the overall risk profile of the application is higher and the lender compensates through a more conservative security position.

Non-standard construction

Properties built using non-standard construction methods, including concrete frame, prefabricated steel frame, timber frame, or various types of system-built properties, are harder to value accurately and typically have a narrower buyer pool than conventionally built properties. Valuers have less comparable evidence to draw on, and forced sale values are more uncertain. Lenders respond by applying lower LTV limits: a non-standard construction property that might otherwise attract 70% LTV may find the effective maximum is 60% or lower, depending on the specific construction type and how the valuer assesses the marketability.

The practical implication is that buyers of non-standard properties need to factor this into their equity calculations before approaching a lender. A property that looks like it should support a 70% LTV bridge may deliver significantly less once the construction type is reflected in both the valuation and the lender’s LTV policy. This is worth confirming at the earliest stage of the application, ideally by speaking to a broker who knows which lenders in the bridging market have specific appetite and experience with the construction type in question.

Adverse credit and borrower profile

Lenders who accept applications with adverse credit typically manage the additional perceived risk on the borrower side by requiring more security headroom, which translates to a lower effective LTV. A borrower with a clean credit profile applying for a straightforward residential bridge might be offered 75% LTV. The same borrower with recent defaults or an unsatisfied CCJ might find the maximum offered is 65% or lower, even on the same property and exit plan. The LTV reduction is the lender’s way of ensuring the security backstop provides more comfort in a scenario where borrower behaviour is perceived as a higher risk factor.

This interaction between credit profile and LTV is covered in more detail in our guide to bridging loans for adverse credit. The key practical point is that adverse credit affects not just the lender’s willingness to consider the application but also the effective LTV, the rate offered, and the breadth of the available panel. A borrower who is planning around a specific LTV to make their transaction work should factor in a conservative LTV assumption if adverse credit is present, rather than assuming the product-type ceiling will be available to them.

Weak or unsupported exit plan

The exit plan and the LTV are connected because they represent the two main risk controls in bridging underwriting. A very strong exit, where the repayment route is specific, credible, and already in motion, gives a lender confidence that the security backstop will not be needed. A weak exit, where the repayment route is vague, dependent on optimistic assumptions, or not yet evidenced, shifts more weight onto the security. Lenders facing a weak exit often respond by requiring a more conservative LTV so that the security position provides more comfort if the exit takes longer or does not proceed as planned.

This dynamic means that investing time in a well-evidenced exit plan is not just about satisfying the lender’s process requirements: it can directly affect the LTV available and therefore the loan amount accessible. A borrower who presents a clear, specific, and evidenced exit alongside their application is in a materially stronger LTV position than one who describes the same exit in general terms with no supporting evidence. Our guide to what counts as a strong exit strategy covers how to build and present a credible exit case.

Specialist, illiquid, or remotely located properties

Properties with a narrow buyer pool, significant geographic remoteness, or characteristics that make them harder to sell in a normal marketing period attract lower LTV limits because the security backstop is less reliable. A rural property in an area with limited transaction volumes may be correctly valued but take significantly longer to sell than a similar-sized property in an urban area with active demand. A specialist-use property such as a care home, student accommodation block, or purpose-built hotel has a buyer pool limited to operators or investors in that specific sector, which means the range of achievable sale prices is wider and the forced sale value is less predictable.

Lenders who will consider these properties at all typically do so at a lower LTV than they would apply to mainstream residential or commercial assets. Some lenders will not consider certain property types regardless of the LTV requested. The specialist nature of the property and its impact on LTV is one of the areas where an experienced broker adds genuine value: knowing which lenders have appetite for specific property types, at what LTV, and with what documentation requirements avoids the time cost of approaching lenders who will decline on policy grounds.

First charge, second charge, and combined LTV

When a bridging loan is the only borrowing secured against a property, the LTV calculation is straightforward: gross loan divided by property value. When there is an existing mortgage on the property and the bridging lender takes a second charge behind it, the relevant measure is the combined LTV, which covers the total secured borrowing as a percentage of the property value. Most bridging lenders set their maximum LTV as a combined LTV limit, not as a limit on the bridge alone.

How combined LTV is calculated

The combined LTV formula is straightforward: add the outstanding balance of the existing mortgage to the proposed bridging loan, then divide the total by the open market value of the property. For example, a property with an open market value of £500,000 and an outstanding mortgage of £200,000 has a current LTV of 40%. If the borrower wants to add a bridging loan of £150,000, the combined loan is £350,000 and the combined LTV is 70%. If the lender’s maximum combined LTV is 70%, this transaction sits exactly at the ceiling. If the borrower wanted £175,000 from the bridge instead, the combined LTV would be 75%, which might be achievable with some lenders but not others.

The practical implication is that the amount available through a second charge bridge is directly reduced by the size of the existing mortgage. The same property supporting the same gross LTV limit will deliver less available bridging loan when there is a large existing mortgage than when the property is unencumbered. A borrower who has a property worth £500,000 with no mortgage can access a first charge bridge up to £350,000-£375,000 at 70-75% LTV. The same borrower with a £300,000 mortgage already in place has already used 60% of the LTV capacity, leaving only £50,000-£75,000 potentially available through a bridge before the combined LTV ceiling is reached. This calculation is one of the most important to run before approaching a lender. The LTV and equity calculator below allows this to be modelled directly for any property and mortgage combination.

Why second charge bridging attracts more scrutiny

A second charge bridging lender sits behind the first charge mortgage lender in the order of priority for security recovery. If the borrower defaults and the property is sold by the first charge lender, the first charge debt is repaid first and the second charge lender receives whatever remains. This subordinated position means second charge bridging carries a higher inherent risk for the lender and tends to attract more careful scrutiny of the combined LTV position, the property value, and the exit plan. Lenders are lending against the same ceiling in combined LTV terms, but they are doing so from a less secure position in the capital stack.

For a downsizing bridge, where the borrower is using their existing home as security, the second charge consideration arises if there is a remaining mortgage on the property. Most downsizing borrowers have either a small remaining mortgage or none at all, which is why downsizing is one of the more straightforward bridging scenarios: the combined LTV position is often comfortably within normal limits and the first charge position (or unencumbered ownership) gives the lender clean security. For more complex cases involving company structures and multiple assets, our guide to bridging loans for limited companies and SPVs covers how combined LTV is assessed across a corporate security arrangement.

Day-one LTV versus GDV LTV for development cases

Development bridging introduces a second LTV measure that does not apply to standard acquisition or refinance bridging: the Gross Development Value LTV. Most development bridging cases are assessed against two LTV tests simultaneously, and the loan amount must satisfy both. Understanding both tests and which one is the binding constraint for a specific project is an important part of development feasibility planning.

Day-one LTV

Day-one LTV is the straightforward bridging LTV calculation: gross loan as a percentage of the current value of the property or site on the day the loan is drawn. For a development project, this is typically the value of the land or existing structure, including any enhancement in value from planning permission that has already been granted. If a site has an open market value of £400,000 and the lender’s day-one LTV limit is 65%, the maximum gross loan on a day-one basis is £260,000. This limit applies regardless of what the completed development might be worth.

Day-one LTV for development sites is typically more conservative than for standard residential bridging, reflecting the fact that a site under active development has more uncertain security value than a completed property. A half-built structure has neither the value of the original site nor the value of the completed building, and it is harder to realise in a forced sale scenario. Lenders apply a lower day-one LTV ceiling to create more security headroom for the period during which the property is in development and therefore most difficult to value and sell.

GDV LTV and why day-one is typically the binding constraint

GDV LTV expresses the gross loan as a percentage of the Gross Development Value: the projected open market value of the completed development. A lender might offer up to 65% of GDV alongside their day-one LTV limit. For a site worth £400,000 today with a projected GDV of £900,000, the GDV LTV limit of 65% would allow a gross loan of up to £585,000. The day-one LTV limit of 65% allows a maximum of £260,000. The loan must satisfy both tests, so the binding constraint is the day-one test at £260,000.

The day-one test is almost always the binding constraint for development cases because the day-one value is typically a fraction of the GDV. A development project that transforms a site from £400,000 to £900,000 has a GDV of more than twice the day-one value, which means the GDV LTV ceiling allows a much larger loan than the day-one ceiling does. The practical implication is that development borrowers planning around a GDV LTV calculation to determine how much they can borrow are often working from the wrong starting point. The day-one test is the figure that most constrains the available bridging loan for sites where significant development work is required. It is also worth noting that development bridging and development finance are distinct products with different structures. Development finance is typically drawn in tranches as work progresses and is monitored throughout; development bridging is a more straightforward facility used for acquisition or light refurbishment where the security value is not primarily dependent on works being completed. Our guide to bridging loans for limited companies and SPVs covers where the bridging versus development finance distinction sits for investors and developers.

Understanding your equity and LTV position

Before approaching a bridging lender, it is worth establishing your current equity position and the approximate maximum loan available at different LTV thresholds. The calculator below allows you to enter your property value and any existing mortgage balance to see your equity position and illustrative maximum borrowing at different LTV levels. Note that the repayment modelling in the second section of the tool uses a standard amortising loan calculation, which is more typical of a longer-term secured loan than of bridging. For understanding your LTV and equity position, which is the most immediately relevant output for bridging, Section 1 is the directly useful reference.

The LTV thresholds shown in the calculator reflect typical secured lending ranges. For bridging specifically, the 70% and 75% tiers are the most commonly used reference points for regulated residential cases, as set out in the product type table earlier in this article. Anything above 75% on a bridging facility requires a specialist lender and a particularly strong overall application. The equity calculation in Section 1 gives the most direct answer to the practical question most readers bring to this article: given a specific property value and existing mortgage, how much equity is available and what does that look like against typical LTV ceilings?

Frequently asked questions

How does the lender value the property for LTV purposes?

Bridging lenders require an independent valuation from a RICS-qualified surveyor, typically one on the lender’s approved panel. The surveyor assesses the open market value: the price a willing buyer would pay for the property in a reasonable marketing period under normal conditions. The surveyor will also typically provide a 90-day or 180-day restricted sale value, which reflects what could be achieved under a compressed timeline, as this helps the lender understand the security position in a forced sale scenario. The lender uses the open market value for the LTV calculation, but the relationship between the OMV and the restricted sale value tells the lender something about the property’s liquidity.

For purchases, the lender lends against the lower of the purchase price and the valuation. If the valuation comes in below the purchase price, the LTV is calculated on the lower figure, which reduces the maximum loan. A valuation below the purchase price can also raise questions for the lender about whether the agreed price is supportable, which may affect their appetite for the transaction. For refinance cases where there is no purchase price to compare, the valuation figure is used directly. Buyers who are concerned about a gap between purchase price and likely valuation should discuss this with a broker before formal application, as it affects the funding structure significantly.

Can I use multiple properties as security to increase the amount I can borrow?

Yes. Using more than one property as security, sometimes called cross-charging or cross-collateralisation, allows the borrower to aggregate equity across multiple assets. Each property is charged to the lender and the combined value of the security pool supports a larger gross loan than any single property would. This approach is used by property investors and developers who have a portfolio and need to access a larger sum than any individual property’s LTV ceiling allows. The combined LTV is calculated across all charged properties in aggregate: total gross loan divided by total value of all security properties.

The practical considerations are that each property requires its own valuation, its own legal charge, and its own set of legal fees. This adds cost and time to the application. The legal complexity of a multi-property bridging application is greater than a single-asset one, and borrowers with existing mortgages on some or all of the additional properties need to account for the combined LTV across the full stack, including the existing mortgages. The benefit is access to a larger loan; the cost is a more complex and expensive application process. For most individual borrowers, a single well-chosen security property is more efficient than multi-property security. For larger investor or developer cases, the additional complexity is often justified by the scale of funding available.

What is the difference between LTV and LTC (loan to cost)?

Loan to Cost is a metric used primarily in development finance rather than standard bridging. LTC expresses the gross loan as a percentage of the total cost of the project: the acquisition cost plus all development costs including construction, professional fees, and finance costs. It measures how much of the total project cost is being funded by the lender rather than by the borrower’s own equity contribution. An LTC of 70% means the lender is funding 70% of the total project cost and the borrower is funding the remaining 30% from their own resources.

LTV and LTC are measuring different things. LTV is a security measure: how much of the property’s value is covered by the loan. LTC is a funding measure: how much of the project cost is covered by the loan. A development project could have a conservative LTV (the loan is well below the projected property value) but a high LTC (the borrower has minimal equity contribution and most of the cost is lender-funded). Development lenders typically assess both measures. Bridging lenders focus primarily on LTV. For borrowers working on development projects and trying to understand which metric applies to their facility, the type of product and lender will determine which measure is the primary constraint. Our guide to how bridging loan interest is calculated covers how the loan structure and costs interact, which is relevant context for understanding what LTV and LTC each capture.

My property has planning permission but has not been developed yet. How does LTV work in that context?

Planning permission adds value to a site, and an independent valuation of a site with planning permission will typically be higher than the same site without it. The LTV is then calculated on this enhanced value. A site worth £300,000 without planning permission might be valued at £450,000 once a residential planning consent is in place: the LTV ceiling then applies to £450,000 rather than £300,000, giving a meaningfully larger maximum gross loan. The type of planning consent matters: outline permission adds less value than detailed permission, and the viability of the scheme (how buildable it is, what the GDV looks like) affects how much the valuer adds for the permission.

For a site with planning permission where the borrower intends to develop, the LTV calculation at acquisition is the day-one measure described in the development section of this article. The loan is sized against the current value with planning, not against the projected GDV. If the borrower wants to access more funding than the day-one LTV allows, they would need to move from a bridging facility to a development finance facility, which is structured to release additional funding in tranches as the development progresses and security value increases. The day-one bridging loan is appropriate for acquiring the site; development finance is the appropriate product for funding the build. Our guide to regulated versus unregulated bridging also touches on the classification of land and development cases within the broader bridging product landscape.

Does the LTV affect the interest rate I am offered?

Yes, typically. LTV is one of the key inputs into bridging loan pricing. Lenders price for risk, and a higher LTV represents a higher risk position: more of the property value is covered by the loan, leaving less equity buffer between the loan and a potential recovery scenario. A bridging loan at 50% LTV on a mainstream residential property is a substantially lower-risk proposition for a lender than the same loan at 72% LTV, and this difference is usually reflected in the rate offered. Lenders typically tier their rates by LTV band, so the rate at 60% LTV is lower than at 70%, and the rate at 70% is lower than at 75%.

The rate and LTV relationship means that borrowers who can demonstrate a lower LTV position, whether by contributing more equity, using a more conservatively valued property, or charging additional security, may be able to access better rates alongside the larger relative loan. The interaction between rate and LTV is also relevant to the total cost calculation: at a lower rate with a lower LTV, the monthly interest bill is lower, which affects the viability of the transaction over the bridging term. Our guide to bridging loan fees explained covers the full cost structure, and our guide to how bridging loan interest is calculated explains how rate and term interact to determine total cost.

This article is for informational purposes only and does not constitute financial advice. All LTV figures and ranges used throughout this article are illustrative only, reflect general market patterns, and do not represent specific lending commitments from any lender. LTV limits, rates, and eligibility criteria vary by lender, product, property type, and individual circumstances, and are subject to change. An independent valuation from a RICS-qualified surveyor is required for all bridging applications. Your property may be repossessed if you do not repay a bridging loan secured against it. Actual outcomes will depend on your individual circumstances.