Unregulated bridging loans for investors and developers

If you are buying an investment property, refinancing a commercial asset, or need to move quickly on a deal that a mainstream lender cannot support in time, an unregulated bridging loan is often the tool that makes it possible.

These short-term, property-backed facilities have become a core part of how UK investors, landlords and developers fund transactions that simply will not wait for standard mortgage timescales.

This guide explains exactly what unregulated bridging finance is, how it differs from a regulated bridge, what lenders look for, and how the numbers actually work in practice.

What Is an Unregulated Bridging Loan?

An unregulated bridging loan is a short-term facility secured against property that is not occupied, or intended to be occupied, by the borrower or their close family as a home. Because the security is not a residential owner-occupied property, the case sits outside the Financial Conduct Authority’s regulated consumer lending rules.

How the property is used is the main factor that decides whether a bridge is regulated or unregulated, together with who is borrowing and what the loan is for. It is not about the lender, the interest rate, or the size of the loan.

In practice, this makes unregulated bridging the natural home for buy-to-let purchases, commercial property, refurbishment projects, land, and limited company transactions.

Regulated vs Unregulated Bridging Loans: What’s the Difference?

Borrowers often assume “unregulated” means less oversight or higher risk. In reality, it simply reflects a different type of transaction, with different lender assessment criteria.

Understanding this distinction matters because it affects how quickly a case can move and what documentation a lender will want to see. For a closer look at how residential occupation changes the process, it is worth comparing this against Regulated Bridging Loans, where the borrower’s own home is involved and additional consumer protections apply.

Who Uses Unregulated Bridging Finance?

This type of lending is used by a broad range of property professionals and business owners, including:

• Buy-to-let landlords expanding or restructuring a portfolio
• Property developers funding refurbishment or light conversion projects
• Limited companies and SPVs purchasing investment property
• Investors buying at auction against tight completion deadlines
• Business owners raising capital against unencumbered commercial property
• Experienced investors bridging a purchase ahead of arranging longer-term finance

What links these borrowers is that the property being funded is not a home. The purpose is investment, business, or commercial in nature, and the transaction is judged on commercial merit rather than personal affordability.

What Can Unregulated Bridging Loans Be Used For?

Unregulated bridging is flexible by design, and lenders will consider a wide range of scenarios, including:

• Buy-to-let purchases, including below-market-value deals
• Auction purchases with a 28-day completion deadline
• Light and heavy refurbishment ahead of refinancing or resale
• Semi-commercial and mixed-use buildings
• Fully commercial premises, including offices, retail and industrial units
• Land purchases, with or without planning permission
• Raising capital against an existing unencumbered or low-geared property
• Breaking a chain on an investment purchase

These scenarios all sit within the wider Bridging Loans market, which covers the full range of short-term, time-sensitive property finance used to complete transactions that mainstream lenders are not structured to handle quickly.

How Unregulated Bridging Loans Work

The process is generally quicker and more flexible than a standard mortgage, though the fundamentals still need to stack up commercially.

1. Enquiry and initial assessment – the lender or broker reviews the property, loan amount, and proposed exit.
2. Valuation instructed – an independent RICS valuation confirms the property’s current (and sometimes projected) value.
3. Underwriting – the lender assesses loan-to-value, the borrower’s experience, and the credibility of the exit strategy.
4. Legal work – solicitors for both lender and borrower handle the security documentation.
5. Offer and completion – funds are released, often within days once legals are finalised.
6. Exit – the loan is repaid through sale, refinance, or another agreed commercial route.

Because there is no requirement to assess personal affordability in the same way as a regulated case, well-prepared unregulated applications can often complete faster than equivalent regulated transactions.

If you are weighing up whether your transaction fits this route, speaking with Platinum Property Finance Experts early can help you understand which lenders are likely to support your specific property and exit plan, usually with a response within 48 hours of enquiry.

Key Costs and Loan Structures Explained

Before comparing offers, it helps to understand the terminology lenders use.

• Loan-to-Value (LTV): the loan amount expressed as a percentage of the property’s value. Unregulated bridging typically runs up to around 70 to 75% LTV, though this varies by asset type and lender appetite.
• Gross loan vs net advance: the gross loan is the full facility agreed. The net advance is what actually reaches the borrower after fees and any retained or rolled-up interest are deducted.
• Arrangement fee: a lender fee, commonly 1.5% to 2% of the gross loan, usually added to the loan or deducted at completion.
• Exit fee: some lenders charge a fee on repayment, though many no longer do. This should always be checked before proceeding.
• Valuation costs: paid to instruct the RICS valuer, varying by property type and value.
• Legal fees: the borrower typically covers both their own and the lender’s legal costs.
• Broker fees: charged by the broker for sourcing and structuring the deal, commonly around 1%.

Interest Options: Monthly, Retained and Rolled-Up Interest

Unregulated bridging loans are usually structured in one of three ways:

• Monthly interest: the borrower pays interest each month, keeping the balance owed static until exit.
• Retained interest: the lender deducts an agreed number of months’ interest from the loan at the outset, so no monthly payments are required, but the net advance is reduced.
• Rolled-up interest: interest accrues and compounds throughout the term, then is repaid in full alongside the capital at exit.

Rolled-up and retained structures are popular with investors who do not want the pressure of monthly servicing, particularly on refurbishment projects where cash flow is tied up in the works.

Open vs Closed Bridging, and First vs Second Charge

A closed bridge has a confirmed exit date, such as an already-agreed sale or refinance completion. An open bridge has no fixed exit date but a clear, credible strategy, and typically carries slightly higher pricing to reflect the extra uncertainty.

Security is also taken as either a first charge, where the lender has primary claim against the property, or a second charge, sitting behind an existing mortgage or loan. Second charge bridging is common for capital raising where the borrower does not want to disturb an existing low-rate mortgage.

Worked Example: How an Unregulated Bridging Loan Is Calculated

Illustrative figures only. Actual rates, fees and loan amounts depend on the lender and your circumstances.

Consider an investor purchasing a commercial investment property valued at £500,000, borrowing at 70% LTV over a 9-month term, with interest rolled up.

Here, the £350,000 gross loan is reduced by the arrangement fee, legal and valuation costs, and the rolled-up interest, leaving £314,125 actually available to the borrower at completion. Because the interest has been rolled up rather than paid monthly, no ongoing payments are due during the term.

At the end of the 9 months, the full £376,775, covering the original capital plus all accrued interest, becomes repayable through the agreed exit route, typically a sale or refinance onto a commercial mortgage or buy-to-let product.

If the borrower had instead chosen a monthly interest structure, they would pay approximately £2,975 per month, with the £350,000 capital balance remaining static until repaid in full at exit.

Every case is different, and the right structure depends on cash flow, the nature of the project, and how confident the exit timeline is. If you would like a tailored illustration based on your own figures, requesting a quote from Platinum Property Finance Experts will get you a structured comparison rather than a generic estimate.

What Do Lenders Assess on Unregulated Bridging Cases?

Lenders are primarily concerned with whether the deal makes commercial sense and whether the loan can realistically be repaid. Typical assessment points include:

• Current and, where relevant, projected value of the security
• Proposed loan-to-value against that valuation
• Strength and credibility of the exit strategy
• Borrower or company experience, particularly on refurbishment or development cases
• Any existing charges or debt secured against the property
• Location, condition and marketability of the asset

A strong, well-evidenced exit is often the single biggest factor in whether a case proceeds smoothly. Lenders are far more comfortable with an open bridge if the borrower can demonstrate, with figures, exactly how and when the loan will be repaid.

Documents Typically Required

While unregulated cases avoid the affordability paperwork of a regulated bridge, lenders will still usually want to see:

• Proof of identity and address for all borrowers or directors
• Evidence of the exit strategy, such as an agreement of sale or mortgage in principle
• Details of the property, including title information
• Schedule of works and costings, for refurbishment cases
• Company accounts or SPV structure details, where applicable
• Evidence of experience for larger or more complex projects

Common Mistakes to Avoid

• Underestimating total costs by focusing only on the headline interest rate
• Not confirming whether an exit fee applies before signing terms
• Choosing an open bridge without a genuinely credible fallback exit
• Leaving refinancing or sale arrangements too late in the term
• Assuming all lenders treat semi-commercial or unusual assets the same way
• Overlooking Stamp Duty Land Tax and other completion costs when calculating overall returns

Why Investors Choose Unregulated Bridging Finance

Speed and flexibility are the main draws. Unregulated bridging can often complete in a matter of days or a few weeks, compared with the months a mainstream commercial mortgage might take.

Lenders in this space are also generally more willing to consider unusual assets, properties needing refurbishment, or transactions where timing is critical, such as auction purchases with a strict 28-day completion window.

That speed is only valuable if the underlying deal is sound. A bridge taken on without a realistic exit plan can quickly become expensive, so the flexibility works best when paired with careful planning from the outset.

Unregulated Bridging vs Commercial Mortgages

Many investors use a bridge to secure or improve an asset quickly, then refinance onto a commercial mortgage or buy-to-let product once the property is stabilised or let, which is a common and well-established exit route.

Exit Strategies for Unregulated Bridging Loans

The most common exit routes include:

• Sale of the property once refurbishment or repositioning is complete
• Refinance onto a commercial mortgage for long-term commercial holds
• Refinance onto a buy-to-let mortgage once a residential investment property is let
• Refinance onto development finance where a project moves from acquisition into a build phase
• Repayment from other funds, such as the sale of another asset or business proceeds

Lenders will want this exit route explained clearly at application stage, and ideally supported by evidence such as an agreement in principle or comparable sales evidence.

Stamp Duty and Other Considerations for Investors

Investment and commercial purchases funded through unregulated bridging are still subject to Stamp Duty Land Tax, including any applicable surcharges for additional residential properties.

This should be factored into the overall cost of the transaction alongside arrangement fees, legal costs and interest, since it directly affects the true return on the deal.

Getting a full picture of these combined costs before committing is exactly the kind of review that a specialist broker can help with. Speaking with Platinum Property Finance Experts before submitting an enquiry can help you stress-test the numbers properly, rather than discovering hidden costs partway through the process.

Commercial bridging loans

A commercial bridging loan is a bridging loan secured on commercial or semi-commercial property: offices, shops, industrial units and mixed-use buildings such as a shop with flats above. It is used to buy before a commercial mortgage can be arranged, to buy or refinance a building that is vacant or has a short lease, and to fund a change of use. In England, for example, some commercial buildings can be converted to homes under permitted development, subject to conditions and the council's prior approval.

Lenders view commercial security differently from residential:

• Valuation basis. The valuer considers what the building is worth empty as well as let, and the lender may rely on the more cautious figure.
• Tenant and lease. Who the tenant is, the rent and how long the lease has to run all affect the value and the exit.
• Lender choice. Fewer bridging lenders take commercial property, so the choice is narrower and terms are usually more cautious.

The usual exit is a longer-term mortgage once the property is let or trading: see commercial property finance and, for mixed-use buildings, semi-commercial mortgages. If the loan is not repaid, the property can be repossessed.

On regulation, FCA guidance draws these lines. A loan secured on property used wholly for business, such as an office block, is not a regulated mortgage contract, and nor is a loan to a company for its business. Mixed-use property is different: a loan to an individual can be regulated where at least 40% of the total floor area is used as a dwelling, and normally is where that part is home to you or a close relative. Where an individual borrows wholly or mainly for business and less than 40% is lived in by them or a close relative, the loan usually falls within an exclusion. Anything in between must be checked case by case by a firm with the right permissions, and you can check any firm on the FCA Register.

Investment bridging with adverse credit

A poor credit history does not rule out an unregulated bridge, because lenders weigh the asset and the exit first. Some accept past arrears, defaults or county court judgments, usually at a higher price or with a smaller loan against the value, and with a company borrower they look at the directors and guarantors too. A current bankruptcy is likely to stop the case, and every lender will check, so disclose any problems at the outset.