What is a third-party charge?
A third-party charge is a legal mortgage registered against a property owned by someone other than the borrower. The charge-giver (the property owner) is not the borrower — they do not receive the loan proceeds — but their property is used as security. If the borrower defaults, the lender can enforce the charge and recover the debt from the sale of the third-party property.
In the context of bridging loans, this most commonly arises when a limited company is borrowing and a director provides their personally-owned property as additional security alongside the company's primary security.
When is a third-party charge used?
There are three typical scenarios:
1. The company's primary security is not enough on its own. A limited company wants to borrow £500,000 against a commercial property valued at £550,000 — that is 91% LTV, far too high for any lender. The director adds their personally-owned buy-to-let (worth £400,000) as a third-party charge. Combined security: £950,000. Combined LTV: 53%. The loan becomes viable.
2. The company is newly incorporated with no trading history. Lenders take comfort from additional security where the borrower entity has a thin track record. A director's personal property — often with significant equity — provides a strong additional backstop.
3. The primary security is complex or illiquid. Commercial or semi-commercial property, development sites or unusual assets can be harder to value confidently. A straightforward residential third-party charge — with a clear, instant AVM — adds a clean, liquid security to the pool.
How the LTV calculation works
Where a third-party charge is involved, lenders look at the LTV two ways: the primary security LTV (loan as a percentage of the primary property value) and the combined LTV (loan as a percentage of all security combined).
Company borrows £400,000. Primary security: commercial property valued at £500,000 (80% primary LTV — too high on its own). Third-party charge: director's buy-to-let valued at £300,000. Combined security: £800,000. Combined LTV: 50%. The loan is approved on combined security at 50% LTV.
The combined LTV is typically the figure that determines whether the loan is acceptable and at what rate. AF Credit will assess each security element separately and the combined position overall.
The regulatory position
This is the critical point. Where the third-party chargor's property is their main residence, providing a charge over it may constitute regulated mortgage activity under FCA rules — even if the primary loan to the company is entirely unregulated. This applies even though the chargor is not the borrower.
AF Credit does not take third-party charges over properties occupied by the charge-giver as their main residence. We take third-party charges on investment properties — buy-to-lets and similar — that are not the chargor's primary home. If the director's personally-owned residential property is also their main home, it cannot be used as a third-party charge with AF Credit.
If the structure requires a third-party charge over a main residence, you will need an FCA-authorised lender with the relevant permissions. Speak to a solicitor to clarify your specific position.
Independent legal advice (ILA)
All reputable bridging lenders — including AF Credit — require the third-party chargor to obtain independent legal advice from a solicitor who is not also acting for the borrower or lender. The ILA solicitor explains the nature and risk of the charge: that the chargor's property may be repossessed if the company cannot repay the loan, even though the chargor received no loan proceeds.
The ILA solicitor provides a certificate confirming the advice was given and understood. This is a non-negotiable pre-completion requirement and adds a small amount of time (typically 1–2 days) to the completion process. Budget for an ILA solicitor fee of approximately £200–400.
Valuation of the third-party security
The third-party property is valued separately from the primary security. Where the third-party charge is a standard residential property in a liquid market, AVM valuation (instant, £0) is available at combined LTVs up to 60% — which significantly speeds up the overall process. Desktop valuation is available at combined LTVs up to 70%.
The primary security (typically commercial or semi-commercial) will generally require a full RICS valuation regardless of LTV, because AVM data is less reliable for non-standard property types. Expect the full RICS element to set the overall timeline — budget 14–21 working days for a third-party charge structure.
Risk to the charge-giver
The risk is real and should be clearly understood. If the company cannot repay the bridging loan — because the exit fails, a sale falls through, or a refinance is declined — the lender will look to enforce the charge. The third-party property can be repossessed and sold to recover the debt, even though the charge-giver never received the money.
Directors providing third-party charges should be satisfied with the company's exit strategy and have contingency plans. The independent legal advice process is designed to ensure this is understood — but it is worth going into the arrangement with clear eyes.
Third-party charge with no valuation — a real example
AF Credit completed a third-party charge bridging loan where the primary security was a commercial property and the third-party security was a director's personally-owned residential investment property. The residential element was valued by AVM (same day, £0) at a combined LTV that justified the approach. The commercial property received a full RICS report. The overall transaction completed in 14 working days. See our no-valuation case study for a similar structure.
Third-party charge structure? Talk to us.
AF Credit lends on third-party charge structures where the additional security is an investment property. Same-day indicative terms. Direct decision.
Get same-day termsRelated guides
Regulated vs Unregulated Bridging Loans
Why the distinction matters and how it affects third-party charge structures involving a main residence.
GuideBridging Loans for Limited Companies
How company bridging loans work and when directors need to provide additional security.
GuideWhat Does a Bridging Loan Cost?
Full cost breakdown including ILA fees, arrangement fees and legal costs for multi-security structures.