Borrow or Wait: The True Cost Calculation for UK Commercial Property Buyers

You have found a commercial building at a material discount. The vendor is in receivership, the lot goes to auction next week, or the solicitors want exchange within 28 days. We issue a term sheet within 24 hours and drawdown typically takes about two weeks, which is the window these deals actually run on.

This is the borrow-or-wait question that UK commercial buyers face regularly, particularly when targeting vacant, EPC-challenged, or distressed stock that a bank will not consider until the asset is repositioned. The question looks harder than it is once you lay the numbers side by side.

The common error is treating bridging interest as a cost to be avoided at all costs. It is a cost. But so is the foregone discount, and so is the time lost re-entering the market. We have written separately on the cost of waiting and how it compounds across a transaction.

The Deal That Won't Wait

A conventional UK commercial lender underwrites income and coverage. They want audited trading accounts, a debt-service coverage ratio, and a building a valuer can assess without qualification. A vacant building, a distressed sale, or a property with a pending EPC compliance deadline rarely satisfies those criteria before the deal closes.

Banks are not wrong to work this way. They are solving for a different risk profile. A private lender underwrites asset value and a credible exit: a much faster underwriting question. If you are facing a 28-day window, speak to our team before the deadline passes.

The Borrow-or-Wait Calculation

The right frame is not "what does the bridge cost?" It is: "what does the delay cost, and is that number larger?"

Take an illustrative example. A 10,000 sq ft office at £1.8M, where a current RICS valuation supports £2.2M. The vendor's distress creates a £400,000 gap. A bridging facility at 75% LTV draws £1.35M against the purchase price. Rolled-up interest over a five-month term is a real cost. But set that against the £400,000 discount that evaporates if you wait, the additional holding cost on equity tied elsewhere, and the probability that a competing buyer acquires the asset first.

The bridge cost is knowable upfront. The cost of losing the deal cannot be recovered.

When the numbers favour borrowing

Three scenarios where the borrow-or-wait analysis points clearly toward the bridge:

• The vendor's discount is material relative to bridging costs. A 15 to 20 per cent discount on a £2M or larger asset almost always absorbs the short-term interest, with capital remaining.
• The building needs a defined piece of work before a bank will accept it as security: an EPC upgrade, a fire-safety certificate, or a first lease signed with a tenant. The bridge can fund the purchase while the work creates a mortgageable asset; lending on vacant or unmortgageable property is considered case by case, subject to terms.
• A competing buyer is actively in the market. Re-entering at full asking price three to six months later is rarely the better outcome.

When waiting is the right call

A bridge is the wrong tool when the exit is genuinely unclear. If no conventional lender has given a Decision in Principle, if no buyer is identifiable at a realistic price, or if a change-of-use planning consent is speculative, the bridge term will expire before repayment is possible. The bridge works because of its exit, not in spite of its absence. Understand how our lending process works and assess whether your repayment path is credible before committing to a facility.

Structuring the Bridge Before You Commit

A well-prepared borrower can typically reach a term sheet within 24 hours and drawdown within about two weeks. What that requires in practice:

• A credible refinance route: a Decision in Principle from a commercial lender, or a clear buyer at a price supported by valuation.
• A realistic timeline for any works or letting required before a conventional refinance can proceed.
• KYC documentation, source of funds, and the valuation basis for the asset.

Stamp Duty Land Tax applies on completion regardless of how the purchase is financed, so it does not alter the borrow-or-wait maths. It is a fixed transaction cost on both sides of the comparison; model it that way, not as a reason to favour waiting.

We have funded commercial transactions across the UK, including a £30M co-funding facility for a borrower working against a compressed timeline. The common thread in every deal is a clear asset and a clear exit. If both are present, request a term sheet and you should receive an indicative response within 24 hours.